Espresso from an Aeropress - NOT a myth anymore!
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- เผยแพร่เมื่อ 2 ส.ค. 2024
- It is not a myth anymore, Espresso from an Aeropress became reality! 9 bar of pressure, a professional espresso basket and your Aeropress is ready for prime time!
Please be aware that working with 9 bar (or higher) on the Aeropress puts it to it's limits and when done extensively, or improperly might be dangerous! Please refer to my other 3 bar Aeropress modifications, which are certainly within the limits of the Aeropress. If you know how to use tools such as a drilling machine and a grinding wheel and are capable of handling high pressure responsibly, then you are ready for your own Äropress(o)!
Contents of video:
0:00 intro
0:27 link to previous Aeropress hack!
0:42 James Hoffman's definition of espresso
00:50 how much are 9 bar?
01:27 how much pressure can the Aeropress take?
02:36 Aeropress like balloon during tests
03:48 Disclaimer - High pressure is dangerous!
04:11 Aeropress exploding during test - weakest part
04:47 All parts needed for 9 bar Aeropress espresso
06:40 romantic moment
06:56 preparing the Aeropress espresso: Äspresso
09:13 watch it yourself @ 9 bar!
10:25 conclusion
Products used to modify an Aeropress into an Äropresso:
Co2 Regulator (update: recommended version):
www.amazon.com/Regulator-Disc...
Co2 bottle for home:
www.amazon.com/dp/B07WHHW2Y2?
Co2 adapter for small regulator:
www.amazon.com/Interstate-Pne...
Competition basket:
www.amazon.com/Precision-comp...
Grouphead gasket:
www.amazon.com/dp/B09GLLGHSX/
Shower screen:
www.amazon.com/Filters-Ultra-...
Engineer here. I'd be very careful with these uses of the aeropress. As you've experienced yourself the most likely point of failure is not the cylindrical wall but rather the bayonet locking part at the bottom (either the notches in the body or the cap will bend away or shear off). These failures are independent of the fill level or plunger position since it's the axial force at work here, not the radial one. A cap and filter coming off at max pressure can shatter glass and ceramic below or produce flying plastic splinters (in addition to the hot mess of boiling coffee flying around).
A single test (even up to breaking of the aeropress) is most likely not enough to properly judge the durability. The most dangerous and not so obvious part for the layperson is material fatigue. What works well a thousand times may fail horribly the "thousand an one"-th time because the material has seen too many duty cycles. It is almost impossible to predict fatigue without detailed knowledge of the material and every manufacturing step.
The European pressure equipment directive says that simple pressure vessels where the product of volume times pressure is below 25 (in units of liters times bars) "shall be designed and manufactured in accordance with [the] sound engineering practice" (Paragraph 4, Section 3). I doubt that single pressure test is enough, especially if you don't know the exact materials and manufacturing process of the chamber. I know the directive doesn't apply to you as long as you don't sell these things, but I believe it's prudent to follow its recommendations even in DIY situations.
Also keep in mind the amount of CO2 inside a commercial bottle is enough to displace the oxygen in a room and cause asphyxiation. The pressure is about 50 bars. If you use the wrong regulator and yank it open at once by accident you will break something. Never design or use a pressure vessel without a PRV (pressure relief valve)! In espresso machines they are usually called OPV (overpressure valve) but serve a slightly different purpose as they continuously open an return the excess water to the tank.
I would strongly discourage people from trying this at home - please be more careful and don't hurt yourself.
With the 9 bar model the entire pressure of the contraption is held in place by the silicon of the plunger and plunger itself, and the basket. Both are vertically stuck inside the metal contraption. When using my 3 bar mod, the entire pressure/weight is on the cap filter and bayonet locking, that is why I stopped at 3 bar with this mod. (although I had my girlfriend adding her weight onto mine and it also worked, but I don't recommend that. With the 9 bar mod, I assume the first thing that blows, will be the gasket horizontally.
I do understand your concerns, and I do agree that single tests are not conclusive, and I am not recommending the 9 bar mod as a daily driver. I am using a thick plexiglas cylinder on top pf the entire contraption when pushing my 9 bar shots, to have some extra protection.
In the description of the video I recommend another regulator than the one I displayed in the video, which has a safety valve built in (around 10 bar). All my pneumatic equipment is rated for 15 bar.
I appreciate your concern, and I agree that such undertakings should, if at all, only be performed with full knowledge of the risks and proper safety measures.
Cool gentleman, great video' Cept' Dear God! Thank you for posting these incredibly needed and liability relevant' safety awareness factualities'
Engineers Rawwk!😶📈👍
@@mikkisdiyobsessions3742 A custom-made metal Aeropress would be sturdy enough to withstand the pressures, no?
@@grabble7605 even if it did that, the metal would significantly draw heat away from the water
@@P-K-Rayif the cylinder is double walled like a thermos then its viable, plus the flair is all metal and most manual lever espresso machines.
I can't believe you've only got 101 subscribers, the quality and the editing is super professional. Your channel will blow up quickly I'm 100% sure
Thanks for you kind words! I hope it benefits some.
Wait what? Thought he had much much more
782 now - it's started
He does end his videos saying 'don't subscribe'...
This is cool... way more work than I would ever do to make espresso with my Aeropress. But I love the creative process.
the 9 bar mod is probably not becoming my daily driver, but is lots of fun to play around!
I love your attitude and energy. The thing about subscribing at the end really made me smile. Thank you for brightening up my day.
Happy to hear!
Amazing project! Making espresso from an aeropress was just a dream before, and now you did it!
Yesss, it is always good to trust your instincts!
Well done! I really appreciate you doing this and sharing it will all of us. I hope you and this video are receiving the deserved attention.
Thank you so much!
you deserve a standing ovation, a medal and a knighthood for this lol
hahahaha!!!
I always expected someone to do this now here it is and it's even better than I imagined.
Thanks, the 9 bar version is probably not ready yet for a daily driver, but the concept works.
James Hoffman HAS to see this!! Great Job, you have a new subscriber!
Thanks!
Mikki, this is great and humorous! Thanks for sharing.
Glad you enjoyed it!
When this came up in my feed, I was sceptical. But now I have to say congrats on the achievement! Brilliant idea and execution. Best AeroPress espresso I have seen by far. 👏👏
Wow, thanks!
Amazing commitment. I really enjoyed that 😃 Congratulations ❗️
Thanks! It was quite a journey and I really enjoyed it.
Very nice, this is great work, Mikki.
Thanks, glad you liked it!
You sir are amazing. I appreciate your ingenuity.
Thank you! Cheers!
Amazing video! Excellent job and quality
Thanks a lot!
Congratulations!!! That’s freaking awesome!
Thank you!!
That looks super great! Mixing science with coffee just how it should be done. And your video editing quality is so good. Keep up with the good work!
Thanks so much! 😊
Looking forward to sampling this.
Hi Peter, looking forward seeing your face when tasting!
Love the video, love the energy, love the Aeropress. Thanks for making my morning a bit better. I would love to see whatever you think of next. I was thinking that maybe a piece of PVC that slides over the aeropress could add some extra protection but also you could mount the hoses, and pressure gauge and tank coming off the PVC section. That way it could be a nice little unit. Also I would love to see you try with a lever, although I might have to try it myself too.
Thanks for your kind words! I am actually using a large, thick Plexiglas cylinder that I put over the entire contraption, so I can still see what is going on and also have an extra layer of protection. Let me know once you set up a lever construct!
Man oh man ! Finally someone did it with Aeropress. Loved the process and the end result. So much Crema. Kudos !!
Thanks for the kudos!
Great camera angle when pulling a shot with the pressure. Great vid!
Thanks!
Really great work! So Inspiring
Thanks so much!
This is amazing! I'd love to see James Hoffman nerd out on your home build. I'm certainly inspired
Thanks!
How do we tag James? We need him to pile on!
Lance Headrick too.
This is awesomely mad and nerdy, I adore it. It's like a mad scientists take on what 9barrista did to the moka pot, but with the aeropress!
haha, thanks!
What a madlad. I have nothing but respect for you, good sir.
lol!
that shot looked really good! it's amazing that you made this just sitting in your living room, almost makes me want to try! i'd like to keep both my eyes and all my fingers though so i won't.
I did a lot of testing ahead, not in my living room though! I pushed roughly 100 shots so far and all good, but I am using a plexiglas cylinder, 20cm wide and 80cm high, that I put over the entire contraption when brewing with higher than 4 bar. I am aware the Aeropress has not been designed for continues high pressure, but sofar, so good!
Great work!
Thanks!
Sehr leiwande Sache! Hat Spaß gemacht, das anzuschauen. Verwend auch schon seit 10 Jahren die gleiche Aeropress.
Hat Ur-Spass gemacht! Danke!
Wow this is quite amazing. I wonder what Mr. Hoffman had to say about this if he watches this. I love your idea. The setup is quite simple in a small package. It even allows for a really wide range of control. What more can you ask for???
I am glad you liked the idea! It provides me lots of fun to play around with it. James Sir actually was right, the default Aeropress itself can't produce real espresso!
Love your idea and how the set up looking very robust and neat! The metal plate and rod holder is brilliant, similar like motorcycle suspension tool. If I’m making this, for added safety I may just put a stainless steel hose clamp or exhaust pipe clamp (which has wider plate) at the outer aeropress housing where it receive pressure, just to prevent it cracking or exploding. Thanks for sharing, cheers from Singapore!
Glad you enjoyed it, thanks!
Really nice and educational. Thanks
Glad it was helpful!
You are a genius! Subscribed.
I hope that geniuses are on another level, otherwise this will be a scary world!
This amazing work deserve more likes.
thanks!
Truly awesome!!
thanks!
Love the scientific approach that you're taking! Amazing work really.
Thank you!
This is amazing!
thanks
Need infinitely more views. Hopefully James covers your mod
Haha, I guess this version is quite a niche thingy, nothing for the masses! Am using my 3 bar version daily though and learnt so much about coffe/espresso making with it, I hope it will provide the same, or even more to some others as well!
@@mikkisdiyobsessions3742 have you tried it with nitrous oxide btw? I know it's used in whipped cream because it imparts a slightly sweet taste, don't know if it can get the same pressure though
Also Grats on the growth of the channel in the last two weeks! You deserve it!
Brilliant!
Thanks!
Very cool! Even if it’s not totally practical for some people to make the accommodations, it’s just great that somebody has finally done it 😂 - also goes to further demonstrate the versatility of the geometry of the aeropress!
thanks, I agree.
Quality lighting, editing, composition and feel. Stick with this, and youl be over that 10K then 50K then 250K hump!
Thanks for the praises!
Amazing!
Thanks!
I was here before the channel got famous. Top 200 subscriber medal get!
Congrats?
thank you for sharing another creative video. I would be interested to see more detail on the mod to the inner plunger and seal to add the hose and valve. Though I am resigned to use my AeroPress to produce weaker coffee, I am nonetheless inspired by your creative explorations.
Please have a look at my other video about adding a pressure gauge: th-cam.com/video/GkIV5BDciZs/w-d-xo.html
Amaaaazing video!! And I loved the way you talk people into subscribing!! Thank you so much!! Went and did smth good for my country, Ukraine
Thanks! Wishing you good luck with whatever good you are up to!
I had to give you a sub for such a unique video. A job well done.👏☕
Thank you so much!
This is bonkers and I love it.
Glad you loved it!
cool DIY espresso machine
Thanks!
Ingenious!
inglorious!
I just bought a pneumatic Expresso maker from AliExpress which arrived with the gauge sheered off. Wish I saw this video sooner. Would saved me $200
Sorry to hear that.... hope you can fix it
I loved this vid! This is the kind of nerding over coffee that I love.
I admit though, 9 bars on an aeropress scares me, even with the metal holding everything in place hahaha
awesome vid! keep it up c:
Glad you enjoyed it! Yes, 9 bar is at the limits of the Aeropress..
Coffee mad scientist!!! Love this ❤
Thanks!
This is great, a mad professor making coffee. Really enjoyed watching it, but don't think I will be trying it at home!
You can do it!
Heroic!
haha!
Good job
Thanks
wow, amazing!
Thank you!
This is amazing
Thanks! And a lot of fun to watch espresso coming out of your Aeropress!
Hilariious! Thank you!
Glad you enjoyed it!
@@mikkisdiyobsessions3742 i did. Unfortunately my link to this vid on r/coffee got deleted for some reason. I think many geeks would enjoy this :)
Thanks for sharing your mod!! This is such an interesting idea.
I'm curious if the basket mod is basically what joepresso did but with a non pressurized basket instead? Could be something more comfortable for people who aren't confident in too much DIY.
I'd actually love to see a DIY vid of how you built your steel frame. It looks pretty simple but I'm curious about the thought process of the materials you used there - was it just the most convenient and cost effective from the hardware store?
Subcribed and looking forward to future vids!
That's the main sticking point for me not to start building this next Saturday, haha!
I dont own a joepresso, but it seems very similar, except that you don't need to modify the Aeropress with joepresso. But I am not sure if it can withstand 9 bar (gasket, filter cap). Whenever I get hands on it, i ll test it.
The steel (aluminum) frame was the result of a lot of testing, the threaded rods are super easy to find and cheap and the aluminum is easy to cut holes into. Obviously it could be improved in terms of functionality and design., but I don't think it can get much lighter in weight. Glad you enjoyed the video!
If you want to start light with DIY check out my other video with the 3 bar mod, that is the one I use on a daily basis. th-cam.com/video/A5ZfFLRxvnk/w-d-xo.html
Waaoww you did it 🙌🏻🙌🏻🙌🏻
Yes! Thank you!
amazing! congrats on putting this together and making it work!..Now, I wonder how the cost of this compares with the cost of a Flair manual espresso machine. Two advantages to the Flair: 1) It's not DIY, it comes ready to use out of the box, and 2) you don't have to use a CO2 cartridge every time you want a shot.
The Co2 9 bar version is not meant as a daily brewer, just wanted to show it is possible. My 3 bar mods on the other hand are quite easy to DIY, for way below the flair price and can be used as a daily lightweight,portable espresso maker. Another advantage of the Aeropress mod over the Flair is that you don't need any pre-heating, since the plastic does not steal a lot of heat.
@@mikkisdiyobsessions3742 that makes sense. I watched your 3 bar video after I had watched this one and I'm thinking I'm going to try that mod, the one that doesn't require modifying the aeropress, just getting the steel basket and taping it to fit inside the press. thanks for posting these. great videos and a lot of fun!
The Nutty Professor, but I really enjoyed the video, I would never try this though, I mean who can even build the stand he uses, it just shows the trouble this guy encountered in getting this to work and for that I say thank you and well done.
Glad you enjoyed it!
That was pretty amazing :)
Thanks! 😄
Fantastic
Thanks
This video gave me so much joy! Great work. I also cannot believe you only have this many subscribers. I’m a roaster at Onyx Coffee so if you’d ever like any coffee sent over let me know!
Glad you enjoyed! I am based in Europe, I guess it doesn't make too much sense to send roasted coffee all that way, but thanks for the offer!
Subscribed! Love the scientific approach and the format. Not feeling the lighting though, may be too dark for scientific show? Im not sure.
I personally like this style of lighting, that's why I chose it.
I was pretty stoked aobut the x-bar espresso that got promised on patreon. apparently it never made it. this is fairly cool man! makes me wanna build my own, but I would go for metal
The main issue with metal for the cylinder is temperature control. The Aeropress is thermally super stable. I made over 1000 !!! 6-9 bar Espresso already with my modified Aeropress GO and still rockin'! The main thing to take care of is that the black screw bottom thingy (where the filter basket sits in) sits flush on the lower support.
I actually visited the producer of the X bar espresso maker (at least it looked almost identical) in Thailand (Chiang Mai) and even tried some espresso from it in a coffe shop where they had some proto types, it was pretty nice, but a bit variable in outcome, unless you pre heat the metal...
Well who would have thought this of aeropress. Haha. So you saw one live, wow nice
Yes exactly, the preheating seemed so mendatory and annoying too. I went with the Nomad. Still do preheat, but just once, while grinding coffee.
Impressive
I agree, 9 bar with an Aeropress is impressive pressure!
Putting AeroPress aside, I would be very interested in a machine that can automate the whole process but allow to play, twick and program all the parameters of coffee brewing: grind size, coffee amount, water:coffee ratio, water temperature, pressure and timing.
Most medium to higher end espresso machines allow exactly that, but you still will need to do the puck preparation, I haven't seen a fully automatic puck prep machine yet.
You are a treasure to the coffee world. We need more heroes like you. Thank you sir.
So nice of you
I want to try this with a tubless tyre pump (with the big pressure chamber)
Just be aware when using higher pressure, you will need to clamp the Aeropress into some structure (I used 4 threaded iron rods and aluminum top and bottom plates) otherwise the bottom Aeropress stock filter cap might break. Please be careful with higher pressure!
Fantastic! The modification is how science should be, keep experimenting! I wonder if the metal clip can be excluded if a custom made gasket to be used? Also, instead of CO2, how about using nitrogen gas as alternative?
Thank you! I am not sure about Nitrogen use, I think it requires different pressure regulators. Food grade Nitrogen is being used with some beer and cold brewing though. Regarding the metal clip, I guess you are referring to the one that holds the shower screen in place? Well, it does just that, holding the screen in place, so when the water hits the shower screen, the coffee puck does not get destroyed by that force. Not sure why you would want to exclude it to fit another gasket, they should not interfere with each other.
@@mikkisdiyobsessions3742 Wow, I got your reply! I was thinking a gasket that are thick enough to do both, holding the metal shower screen but at the same time sealing between the Aeropress mount and the screw lid. Lesser parts make this whole concept simpler (easier to clean) to go mainstream. A while ago, I was thinking using some hand/leg pump to create pressure haha. I like that metal stand that you built to ensure the cup wouldn't crushed during press, ever thought of a bigger contraption that use the leg or "you can sit on it"?
@@TheKagaya1981 That is a nice idea! Not sure though if the larger gasket will give way to the swelling coffee puck during brewing process. If not, that might alter extraction. Lence Hendrick just posted a new manual espresso maker that works with a pump system, very interesting! Haha, I was thinking of mounting a bicycle saddle somehow, might be fun!
Time to patent, kickstarter and make a working prototype !!
This method really pushes the Aeropress to it's limits, but the 3 bar method that I posted in my first method is a really a handy thing.
What a legend
Haha, legendary obsessed !
Pretty nice build, I would be a bit worried about extra CO2 dissolving in the water and making the espresso a bit more acid or even fizzy (in a too-fine grind scenario), but seems like it wasn't a problem. And there always nitrogen to test.
Other potential problem would be the temperature control, both from the thermal mass of the whole system and the gas that gets pretty chilly when expanding. But if it's tasting good then that's all that matters
Roasted beans naturally contain lots of Co2, when being released ending up as crema in your cup. I didn't perceive any change in taste due to the Co2. Will try to do some temp measurements and see if there is a large difference in brewing temp with Co2 and air. In any case the taste is pretty good!
I think I will just keep using my AP for regular coffee. If and when I need real espresso I will just pick up a Flair or similar press. Pretty cool the AP can take that kind of abuse. Means that one AP probably last for the rest of my life. I have 4 of them. So 4 lifetimes of coffee. I still don’t know how people wear out the rubber plunger. My first press is the one I use daily and it has made 1000s of cups and still on the original rubber. They are a very solid tool. Never go away without one.
Yes AP is so much more than people think it is!
You da man ❤️
haha!
This is crazy! 3 bars are 43.5113 psi, much more tan the presure in a tire! 9 bars are 130.534 psi, more presure than in four tires, I think this is insane! I apreciate you reach this with an aeropress but are many modifications, I think you can desaign a cheap and safer espresso machine, if a tire can explode, I think aeropress is not safer than a tire. Maybe aeropress can suport few brews but the material will become weak and eventually explodes. (please, excuse my english).
Dear Luis, I understand your concerns, and I had similar ones in the beginning. My first couplo of hundred shots I used a Plexiglas dome to protect me in case of explosion. Now, I have pushed almost a thousand 6-9 bar pressure shots and the Aeropress is still intact! What an amazing product! I made some small, but important modifications though to my alumnium table, will post about it hopefully soon!
You could make a leverage arm like in a flair machine, to build up the pressure. I would like to see that.
I think the flair does a pretty good job with that already and the base model is not that expensive either.
@@mikkisdiyobsessions3742 Yes you are right
that is absolutely TERRIFYING and awesome. Can't wait to see Mr Hoffmans thoughts on this haha. Someone else mentioned this also but N2 cannisters would be interesting. Nitro Espresso?
also... maybe some kind of small acrylic or plexiglass blast shield around that frame would be a good idea. Death by aeropress wouldnt be a good headline
Thanks, am slowly starting to ponder NO2 possibilities! You are exactly right, I am actually using a Plexiglas cylinder that fits on top the entire contraption to give an extra layer of security, but still allowing me to watch what's going on.
Crazy man 😂👍
A little crazy sometimes is quite helpful!
Awesome idea! Have you considered using N2 instead? I’ve tasted cold brew coffee from a keg that was accidentally tapped with CO2 and it ruined the texture and taste.
Nope, didn't try N2 yet.
HALLELUJAH that's really far out and beautiful my friend, I guess you showed them hahaha.
haha, thanks!
Impressive work! However, I would like to point out some issues:
1. The pneumatic parts as shown in your video may not be designed for food processing purposes, which may contain hazardous materials to human body (e.g. lubricants, particles generated from time to time due to wear)
2. The polymer tubes were usually designed for applications not greater than 7 bars of pressure, the tubes for hydraulic control can withstand much higher pressure, these tubes were usually reinforced, and they would never look like the ones shown in this video.
Thanks for your feedback. Actually all the pneumatic equipment I used (hoses, connectors, gauge, valve, regulator, etc...) are rated for at least 15 bar. In my mind, the largest 'pollutor' in this set up might be the Co2 tank, that is why I used the Soda stream and Soda capsules, instead of cheaper Co2 tanks for welding, or air guns. The entire 9 bar setup was meant as a proof of concept and not as the ultimate daily espresso maker. I d rather recommend my 3 bar mod which is easier to build, cheaper, lighter and offers great opportunity for some extra sports!
This is really cool! Did you get crema because you used CO2 to pressurize the Aeropress?
Thanks! The more pressure (not necessarily from Co2) the more crema it seems.
That's one heck of a mod
Thanks!
See the balloon effect you were getting….that’s the point I’ve had with all these gadgets claiming you get espresso from the Aeropress. It never was designed to make espresso based off of pressure. That being said, it’s awesome that you went to all these lengths to make espresso with and Aeropress. A bit scary though. Lol
When inserting the plunger deeper, the balloon effect is almost gone. I am planing on testing the Aeropress with this mod to see at which pressure it will explode, what is your bet? (I will take precautions for sure, not to get hurt)
Like many others, next video must be nitro! Imagine this even-more-micro foam, and smooth texture...
Let's see!
Cool idea! Yet i am a bit scared that it‘s too much pressure and the aeropress explodes. with hot water and plastic shards all over the place.
This whole contraption is not a daily driver solution, I am aware of that, and it is also important to take good security measures against any possible hazards.
Question: When you put the plunger in and push it down, where does the air go? Why isn't that push pushing water into the coffee puck?
The plunger has the blue hose connected, when plunging down, the hose is still open on the other end, air can escape. Once in the proper position I close the other end with pressure gauge and regulator.
How much pressure would you need or how many times could you do what your doing before the Aeropress shatters or cracks or fails?
I am going to find out. So far, with 9 bar, I guess I pushed close to 100 shots. I found that the Aeropress Go has slightly thicker walls, will use that soon.
@@mikkisdiyobsessions3742 looking forward to it, and just subbed. Definitely will be doing something good for someone today! Cheers!☕️
I'm impressed but unfortunately, at the same time, scared to own something like that (if parts do become available). I'm a clumsy man. Since parts seem like mostly modular (or have to be manually set up), I probably will absent mindedly make a mistake and end up hurt myself. ahaha
Thanks! Yes, it needs quite a bit of attention and care.
Let’s go all the way to nine. -Famous last words ;)
So far my Aeropress is still intact, and so am I, but it is true, 9 bar is close to the limit and I am using most of the time an acrylic cylinder that I put on top of the entire contraption, so I can see how extraction is going, but in case of failure I and my environment are protected.
If you buy another aeropress, cut the plunger near the base, then put it in below this plunger to create three distinct chambers, would you then be able to separate the CO2 from the coffee and reduce the CO2 usage? 9 Bars in the top piston should be 9 bars pushing on the water, right?
Nice idea! I guess the main issue will be that the cut plunger with the silicone seal will not remain in the same horizontal angle, but might get stuck. The long shaft of the plunger also serves to keep it at the right angle inside the Aeropress. I am not sure it would save that much of Co2, since the air sitting on top of the coffee puck would need to get compressed as well and to transfer the 9 bar of the Co2 chamber to that air chamber will probably require quite some air volume. When using about 3 bar of pressure with my body weight, I need almost half of the Aeropress chamber space, air compresses quite a bit.
@@mikkisdiyobsessions3742 Right. I guess you would need to have it be flared at the top or something so that it stays flush to the walls of the press.
If you made the pneumatic plunger sit right on top of the hydraulic plunger, it wouldn't require much gas at all. Mostly the difference would be at the end, avoiding any excess venting when the water has passed.
Maybe have the bottom section with two plunger segments to keep it aligned, then the top plunger with the hole in it sitting right on top?
Does the CO2 here alter the flavor at all? That was my line of thought mostly, to get rid of as much CO2 in the grounds as possible.
@@dalsio In terms of Co2 changing the flavor, I can't notice any 'odd' flavors. Actually, roasted beans do contain quite a bit of Co2 due to the roasting process and that is what actually creates the crema in your cup. Creme is essentially the foam on your beer, which is mostly created by Co2.
Where did you get the stuff to make the table?
I got this all on Amazon, but I moved to a much better solution: An aluminum pipe! I will post about details soon in a new video.
Let’s make 9bar espresso with an AeroPress. -Famous last words :D
Soon I will test how much pressure it actually can take, in a protected environment, of coruse!
Hello sir, How much espresso you can make with One tube of CO2?
My latest Aeropress mod has an even smaller area of air above the coffee puck, so I need even less Co2. With a small 16g Co2 cartridge should I get about 5 Espressi. With a sodastream bottle probably around 120 Espressi.
This looks like a "Tell me your from Berlin without saying your from Berlin" Video :D
On a more serious note: Doesn't the CO2 dissolve into the water/coffee and increase acidity? And if it doesn't that could be your next video: sparkling espresso :з
No the Co2 doesn't seem to dissolve into the water, and the taste doesn't seem to change at all, compared to air pressure. Maybe it gets released as crema, alongside with the Co2 accumulated during the roasting process, trapped inside the beans.
Or just buy a flair! great video regardless
Flair definitely does a great job, but also has a higher cost.
Did you try this assembly with nitrogen? Nitro espresso maybe. Never heard of such a thing yet.
Yes, I tried, but Nitrogen does not dissolve well in hot liquids, only on cold ones.
Leiwand 😀
Danke!