ฝัง
- เผยแพร่เมื่อ 5 ต.ค. 2024
- We will be extracting some caffeine from coffee today! I used regular coffee grounds, but I think the process is actually faster and easier with instant coffee.
In theory the yield should have been hovering around 300mg if ALL the caffeine was removed. However, I got around 10% of that (30mg). Apparently 10g makes about a cup of coffee, so a yield of 30mg isn't that horrible.
Industrially, the caffeine is made synthetically and not extracted because it isn't really economical. The only time caffeine is extracted is for making decaffeinated coffee. But in that case, the end product is the coffee itself and the caffeine is a by-product. It is just much cheaper to make the caffeine directly.
Ill be doing a future video on how to get caffeine from caffeine pills.
I am lazy and it is getting there. I have been spending most of my time focusing on filming new experiments, so I often forget about the other things.
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Nile talks about lab safety: • Chemistry is dangerous. - วิทยาศาสตร์และเทคโนโลยี
this is more entertaining when you dont have to write a post lab report after watching it
Totally agree.
hope things are well, and you got the grade you wanted.
@@KeksimusMaximus Looks like the TH-cam algorithm saved you from the slaughter that could of taken part here; just stripping me of my rights, no big deal 🤷🏼♂️
@@KeksimusMaximus If you said it than it must be true.
@@KeksimusMaximus simp
Extract sadness from my heart
And inject it in the ones who caused it
That´s deep my man. Pay a bitch to succ that sadness.
Jesus is the way the truth and the life!
@Algerian Cutie me too 😩
@Algerian Cutie Like how my father did
This is exactly how I make my coffee every morning.
Lol
coffee tastes better when minimum wage plebs make it for you
@@kayleefreiling14abv19 What?
As any person would
@@aidanzuber4026 he said something not funny using some twitch jargon to unsuccessfully try to make it witty
how to extract coke from coca-cola?
there is no coke inside your lovely bottle of coca-cola
Remixopedia there used to be
i know. Sometimes I add a small amount of coke to cola
Sometimes I add a small amount of cola to coke.
No shit Sherlock
Using a coffee filter for its original purpose. How ironic coming from a chemist
J'aime ton pseudo!
so..what would be a better filter option for this extraction?
@Freddy Manchild stop using shit memes kid he asked a question
@@Kreo357 could use a vacuum filter if you wanted.¯\_(ツ)_/¯
finally fucking someone on th einternetthat knows what irony actually is. thanks you. I shall name my first born son after you
Two points I gotta make: Don't be afraid to use extra water for the coffee bean extraction- you can always reduce down by boiling (caffeine is pretty hard to burn, you'd have to get it past 235C to even think about it). Also I feel like drying the DCM was largely unnecessary and even harmful (the salt water likely stole a significant portion of your yield). Since you are drying your solvent with heat, why worry about having an anhydrous solution?
Why oh why do people insist on worrying about having an anhydrous solution? I ,for one , am fucking sick of it . SICK of IT i tells ya .
Wasn't DCM washing a bit short? It seems that the surface between DCM and liquid is not that large.
Heating is just cheaper than drying agents
How to extract baby oil from babies.😁
HAHAHAHAHAHAH
Jesus🤦🏼♂️ 😄😄😄
Centrifuge
🤣
Massage courtship
Do your neighbors just think your cooking meth?
MacheteEnima you’re
@@charlesdarwin1564 try to speak another language instead of english, ''stoopid''
Do you’re neighbors just think your cooking meth?
@@whywhendfhfnvnjejwj3759 nice
@@charlesdarwin1564 You're is you are. You're not even a correct Grammar Nazi.
You can boil the coffee in sulfuric acid (to free it from it's acid-bound form), make it slightly basic with NaOH and extract it with chloroform instead of DCM (both work fine probably). We used that method at uni.
In my personal experience alkaloids extract better from plant matter in an acidic environment and once filtered and the volume reduced freebasing the alkaloids into a suitable organic solvent that is miscible with target freebase alkaloids....sometimes butanol can do wonders
Also if the water is holding the alkaloids you can always salt out the alkaloids using an appropriate salt..just saying their are better ways to do this extraction and get better yields...patience pays off tremendously
In an unprecedented turn of events, Nile uses a coffee filter to filter coffee.
My thesis is literally about extracting caffeine from coffee and this suddenly came up in my recommended. Thank you TH-cam
How do you write a thesis on something so simple?
My thesis is on how to churn butter
My thesis is about decaffeinated coffee too
My thesis was about writing a thesis
How it went
Did this at school in the 1960s but used a large catering can of Nescafe instant coffee. Got quite a lot of caffeine yeild out of it which went very well with the moonshine alcohol made from fermented and distilled sugar and yeast. Hell of a party that weekend.
Alternative title: “How to scam your coke customers”
Or saving lives
Super Nintendo “How to *piss off* your coke customers”
*how to die
@@supernintendo7579 definitely not saving lives buddo. The addicts will just go buy from an actual dealer instead
Cut the coke with caffeine
Extract cyanide from apples
7. Eat it
8. Panic even though you're dead
It's in the skins
InCaseOfEmergency EatAss *seeds
InCaseOfEmergency EatAss *seeds
Chemistry is fascinating. The entire time I was wondering whether the dichloromethane would be removed, and if so, how. In the end, he just heated it up because dichloromethane has a low boiling point. Fascinating that it's possible to do all this mixing and removing!!!
DCM is an organic solvent, think of this as if you were to dissolve a bunch of salt in water, then it's intuitively evident in order to get rid of the solvent you'd boil or evap the water and in the end you'll be left with salt
"Do you want milk or sugar?" "No, just come sodium carbonate. It really brings out more flavor."
Haha
Oddly it actually can. If using distilled or ro water to brew coffee, a pinch of sodium carbonate definitely improves the flavor
Extracting nicotine from cigarettes please!!!
Just smoke it, your body will do a wonderful extraction ;)
Vape juice
Nic is actually super toxic in its pure form
@@dajkboxer cafein also. gives you an heartattack in minutes if enough intake.
Wil Horstman You missed the point that person was trying to make n
Nice video! One thing you might want to look into is to simply grind finer. In the coffee community the consensus seem to be that after a certain size only the exterior gets extracted - that could explain the low caffeine yield.
Just so you know, I'm sure that he appreciates feedback, but this video is reeally old. He has a whole lab for himself now, and he has improved quite a lot. You can check out his new videos for yourself
@@Fabler21 Thanks, I noticed how old the video was after posting. :)
I am begging you man. Please upload more frequenly. I couldn't find anyother youtuber like you. Your vids are neat, professional, educational and not sloppy like many other channels. Please upload more frequently. I love your vids. Keep up the good work
+Batuhan Bulguroğlu Check Out Doug's Lab, Applied Science, NurdRage, all pretty similar content. Maybe Cody's lab as well.
+Batuhan Bulguroğlu I have 8 videos filmed and 3 of those are almost being done edited :).
+ink fink I know all 3 channels you are mentioning and love those channels, but they have that sloppy feel to them. Even though cody's vids concept is based around that feel, I enjoy it time to time.
+Batuhan Bulguroğlu Pretty much. Check out reddit.com/r/codyslab by the way, if there's interest I might make a /r/nilered.
+Batuhan Bulguroğlu Trust me, I said the same thing until I realized how hard it is to actually make videos myself...
Years ago, my brother bought a 1 kg tub of pure anhydrous caffeine so that we could caffeinate just about anything we chose to drink. This experiment gives me a special appreciation for the processing that went into that.
Neat to see these early videos when he's still working on his eventual catchphrase, "Honestly, the yield is pretty bad, but I still have more *blank than I need."
Oh I get it then you snort the caffeine!
Tobias Looser I’m serious debating this nobody is stopping me
@@Itsalexusblack i buy caffeine from amazon ahahahha
Hah yeah why drink several cups of coffee when you can just snort it
mix it with liquid lidocain and it be like coke
Ah, yes. Ethanol caffeine powders, that is totally healthy.
First half of extraction is basically making coffee
*sodium carbonate*
@Freddy Manchild 😒😒😒😒 captain dumbass
Baking soda in your coffee. Tastes gross but might help with indigestion. That's why I use creamer. Oof that's bicarbonate. Nevermind.
@@Slowly_Going_Mad Sodium Carbonate is washing soda. Easy to buy, but way too alkaline to drink.
@Eric Johnson that's why I edited the comment after realizing this hiccup. It could be used the same if dilute enough although it would no doubt taste unpleasant. Remembering back alkali/alkaline earth metal carbonates are a large constituent to ash from wood fire. They are usually a bit less soluble than the bicarbonate form and may have higher ph though I never got to test that.
I feel like there is a fine line between the right amount of caffeine and productivity since working faster doesn't always mean that the output is as productive, but it is some what better to have coffee but not specifically multiple cups a day
great, now i got a neet snortable form
You can actually snort it, just be careful of not overdose to death
Yeah, a group of my friends go really into it and were buying pure cofein to snort. One of them almost did OD (he was having muscle spasms, chest pain etc.) and had to be hospitalized. While it is almost impossible to OD on caffeinated beverages, it is extremely easy to do so on pure caffeine.
@kaechos did he vomit blood
@@killerexe007 It is pretty fun tbh
You can snort it, but you could also od
I really thought that said "How to extract cocaine from coffee."
a freudian slip, i dare say. :^)
Don't I wish
You would still snort a hefty rail of that caffiene. Don't front son son boi boi
Tyler Lewis so did I! I clicked so fast.
I wish
I think part of the problem in the low yield may be that the brewing technique that you used didn't get all of the caffeine out of the coffee. I say this because it has been found that properly brewed pour over coffee (which is effectively what you were doing) has a higher density of caffeine than espresso.
how do you extract cocaine from cold pills
no. are you?
cold water kappa, seriously use google and quit doing shit tier drugs.
psilocybin huh
Cocaine is refined from the coca plant, Meth is from Cold and sick Pill. You have to extract the Psuedophederin though.
Yeaaa... Pure peruvian flake is shit tier.. Sure thing m8...
What the video is aimed to be about: Extracting caffeine from coffee
What the video is actually about: How to make Decaf coffee using chemistry
he removed about 30 mg out of 300mg, not even close bud
@@atomicairsoft5086 shut up
@@bigglock8321 peace was never an option
I thought it was about making your own legal drugs.
Nice video! We compared caffeine content years ago at varsity on different beverages. Contrary to popular belief, a shot of espresso had the lowest caffeine content of everything we tested (lower than tea, instant coffee and perculated coffee, etc). This was mainly due to the short infusion time when extracting espresso from the machine (20 seconds). The type of roast also influenced the caffeine content - the darker the roast, the stronger it tastes, but the less caffeine it contains due to longer roasting. So if you want to stay awake, leave the espresso and opt for a weak tasting, but "powerful" pale roasted perculated coffee.
Can you snort the caffeine? Asking for a friend.
Brandyn Mcfarland yes
Yeah, most amphetamines are cut with caffeine. One (chemist) friend even sold caffeine as speed. xD
Popa Dan well fuck your friend and his “speed” because thats what happens in my area very often
@@stbk51 Fucking order of the internet if you want quality product. It's not even that hard.
Where tf at??
perfect.. i recommend this video to every student who looking for this topic
Extract smart from smart water?
Throw a brain in the bottle, it will absorb the intelligence of water
feeling like breaking bad
*Normal people at 7 am:* man need my coffee
*Me at 7am with my beer:* huh. Coffee. Hm.
Please do death wish coffee since they claim to be world's strongest
That shit is great!!!ZING!!🤣
This shit ain’t nothing * proceeds to bang head on table 130 times under 30 seconds
@@gematriatkn9563 I’m dead
@@nicksalvatore5717 clearly overdosed. Rip
@@nicksalvatore5717 hmmm im sure you band head 131 time instead of 130
Clicked on this video thinking I could go into my kitchen and have something cool to do for an hour... Was wrong
Lmao
Same :c
Not too hard, just gotta have some DCM on hand, everything else is a household product.
You've inspired me to go back to my college chemistry book and to dig around
"The coffee filter separates the coffee grounds from solution" well....
how do i extract codeine from syrup
superjojo555 Google cold water extraction, plenty of detailed videos, plus it's easy to do anyway
why use codeine? it is HORRIBLE.. it has a ceiling limit of 300mg, it causes itchyness and possible hives not to mention headaches.. just use hot water and lemon juice to extract morphine from poppy seeds.
Or if you are the store bought kinda guy, you could try DXM. Be careful as to what product you buy though, as some have other active ingredients which will harm or kill you if you're really lucky.
i know my opiates i just want to get rid of the sugar in a easy and efficient way. i dont need diabetes
there really isnt a way to safely remove all the sugar and honestly if you're drinking enough codeine cough syrup for a cheap high, you deserve diabetes
In my school canteen they used to add sodium carbonate to the tea to make it stronger. At that time I used to think that was an urban legend. Years later I'm learning it can actually make tea/coffee stronger!
can i snort this?
why do you want to do that
why wouldn't you want to do that?
because im not a dumb ass
sadly, you are. in this case
Rahul Bhatia how?
0:29
This is opposite of clickbait... you are straight away telling the audience that this video is almost same as other one...
That's why I love this channel... I am still gonna watch it... 😋😋😋😋😋
One trick I learned years ago with coffee is hold the filter firm with one hand and sharply tap the side of the thing with the other fingers, a sharp rap will make the water go thru faster.
the yield is low because folgers isn't real coffee.
How to extract caffeine from energy drinks.
Joseph Dodson yeesss
It will actually be even less
Nile in 2015: One hundred milliliters
Nile in 2021: Hundred mills
Can you show me how to extract money from my bank without them noticing? ✌🏼
gun
@Used Shop LMAOOOOO I LOVE THIS (I'm Muslim btw so I better not see no snowflakes)
@@azhart_4369 I work at a bank. We definitely would notice that.
@@AdamFloro no because gun shh
3:17 AM. 'This will definitely let me pass my exams tomorrow.'
abdel a 😅😂
Did you pass the exam?
This would make an excellent chem lab project! Coffee, simple-ish process, and of course, and inexplicably low yeild that you have to explain using BS in the final report! I should tell my former college’s chem department about this lol!
So, can I snort it, and it'll still make me poop?
This guy has his priorities set straight XD
Caffeine doesn't make you poop, though
Acctually it does www.onemedical.com/blog/live-well/why-coffee-makes-me-poop/
Justin Skadi Coffee causes diarrhea.
Caffeine stimulates the GI tract, so that would naturally mean a faster stool movement...
How to extract pseudoephedrine from paracetamol.
And then onto another extraction tutorial. This is gonna take awhile.
;)
Lmao
Lol
Then extract meth from pseudoephedrine
I vaguely remember extracting caffeine, from tea, using a steam distillation step, followed by a precipitation step using lead acetate. Final purification was sublimation in a heat pistol thing.
Aight now I can snort pure Caffeine and use it because I'm to broke for coke.
Best comment 😁
you realise you can get a sachet of pure caffeine for a couple bucks right?
Snorting it will do absolutely nothing. You can, however, just take some caffeine pills by mouth.
@@sodaunderthesink9014 I've seen people snort it
@@boaboa5841 That doesn't mean it does anything.
My mind kept reading “cocaine” instead of “caffeine” on the thumbnail and I was so flabbergasted by the information that coffee could really contain cocaine that I had to open the video, only to discover how dumb I am.
Lmaooooo that's gold
I only opened the thumbnail for the cocaine comments lol
i’m literally doing this in my org chem class rn what
also thank u to this channel for single-handedly inspiring me to major in chem engineering next year
1 shot of Espresso (10 grams of coffee grind -> 15 grams of liquid) contains about 30ish mg, so your yield is pretty damn amazing tbh.
This was really well explained. An interesting video would be one on extracting the alkaloids from tobacco. WTA is hard to buy and it would be good to see how hard it is to make.
Please make this one.
I add ginger powder and coffee powder and add sugar and milk and some water in it
I was scrolling fastly, I read cocaine instead of caffeine in the title
I remember this experiment when I was in Organic Chemistry. It was actually our first experiment. It was super fun. ^_^
@javiertrx4 Do you snort Caffeine?
I just wanted to make my coffee strong but this dude went all Breaking Bad on me.
To expedite the filtration and minimize coffee loss I would recommend dampening the filter with DI water. Wet it after you begin brewing and it should be damp but not soaked.
You should try this experiment again with chloroform as the solvent. I am planning out the experiment and still have to make more chloroform. Caffeine is apparently 2 times more soluble in chloroform than in DCM. The only downside would be the fumes from boiling, but you have a fume hood. I think it'd be interesting since basically everybody uses DCM for caffeine extractions.
Well, I tried it with caffeine pills and it worked really well. I got a relatively low yield because I was sloppy and a lot of the caffeine was lost on the walls of the containers after the chloroform evaporated off. I didn't have enough chloroform to do proper washings. Still ended up with about 8 grams of impure caffeine. I'm going to recrystallize it from water tomorrow.
Lol I’d personally be terrified of running a reaction using chloroform, especially without good access to a fume hood.
Are there other solvents that could do the job that *wouldn’t* knock me out if I slipped up? 😂
@@SpartanChief17C Yes. Chloroform. This is chemistry not hollywood. Chloroform doesn't work like in the movies.
"Quick! You're late for work!"
NileRed: "Wait, lemme take 40 mg of caffeine real fast"
Its fun turning caffeine powder into caffeine-citrate.
For me it had less of the known nasty sideeffects.
The new Deconstructed Coffee. People are going to be asking for this at cafe's in the future.
Honestly making people decide the amount of caffeine they want in a drink instead of just "caffeine or no caffeine" isn't that crazy of an idea if you really think about it
This dudes such a freakin nerd. I love it.
Hi NileRed! I've recently been using a supplement called licorice root; but it has glycyrrhizic acid which poses some health problems with long term use. There is such a thing as a deglycerrhizinated licorice root. I've recently procured pure licorice root powder and I wanted to know how you would deglycerrhizinate it in the lab. Thanks!
Liquorice is bad for your cholesterol
IT'S LIKE HEISENBERG TEACHING ALL OF US, HOW TO COOK METH
How does the food industry extract caffeine from coffee?
+fpm1979 I should have mentioned that! If the goal is to get caffeine, they just make it. If the goal is decaf coffee, there are several. ways. Two commons ones are super-critical CO2 and using methylene chloride directly on the coffee beans.
so this is how Nile gets his stuff legally
This seems appropriate to watch now that I’m sipping my afternoon coffee
Was wondering why everything looked so familiar.
Realised I've tried this before at school.
We used bottled coffee
This is more entertaining when you don't have to write a Post lab report after watching it
10g coffee: checked.
4g sodium carbonate: checked.
40 ml DCM: *dammit!* ;\
BTW how do you know that this white powder is really just a pure caffeine and not some other similarly-looking stuff mixed with it?
Sci Twi sell a half gram for $50 an wait for the report lol
You can use chloroform instead of DCM
Taking the IR spectra, looking at the NMR (C & H), ATR, KBr pellets
@@kregg34 can you really?
@@user-du8vj9xb3o yes
The last bits reminded me how well my dmt extraction went :o
Just found this video. I normally make my coffee with 20 g of beans to 300g of water. Plus I know that lighter roasts usually have higher caffeine content since less is burned off in the roasting process. Together, my business partner and I own a coffee company, maybe we could send a light roast coffee to you to see if it yields any more caffeine than the Folgers.
you could try using robusta instead of Arabica coffee. because robusta contains more caffeine
You could just buy half a gramm pure caffeine from your local "coffee-shop" aka the place you get your bongs and papes
or you could just buy a kilo of caffeine powder off ebay
@@cvspvr or you could buy 10 kids on the black market and they will extract caffeine from coffee for you
@@St4ckie or you could buy one genius chinese kid and lock him in your basement and force him to develop coffee beans that extract themselves
i've been binging way too much breaking bad/better call saul to be trusted with this playlist
How to extract vitamin A from carrot?
Vitamin A isn't in carrots. Beta Carotene is in Carrots and when your body consumes it, it processes the Beta Carotene into the Vitamin A that you need. You can overdose on too much Vitamin A consumption. You can't OD on carrots.
@@tweakingonwindows6132 True, but you can turn orange.
Please extract THC from Cannabis
WaRRioR Its only CBD that you can extract.THC is a crystal on the plant that cannot be extracted.
Green butter
-Hello? FBI? I have a smartly guy here.
@Jonathan Slater crystalline isolate 👍
Copy paste
Put in 10g of coffee into a container followed by 4g of sodium carbonate, then add in 60mL of distilled water (increase amount of ingredients for larger quantities) , and then bring the solution to boil for 15 minutes, stir or shake occasionally to prevent it from foaming over, or turn down the heat to simmer, once the 15 minutes is over you can let it cool but make sure to keep the temp as high as possible, and then strain it in a coffee filter, and then add 100mL of boiling distilled water, then pour the mixture into a separatory funnel and then add 15mL of dichloromethane, and gently shake it around, after that pour out the DCM which has the caffeine in it, and repeat the process with the remaining coffee, and then pour the DCM into a clean separatory funnel along with a saturated salt solution to pull water from the solvent, and then gently shake it again before pouring out the DCM, and add in drying agents like molecular sieves and dry for 20 minutes before placing it into a new beaker, and the boil to remove the DCM, but don't overheat it as it will burn, and then, once dry, recrystallize the remaining substance with a 95% ethanol solution, and then let to rest in the freezer before vaccum filtering and letting it dry in the vaccum for a few minutes.
Is it possible to extract L-Theanine from tea? Love your extraction videos, thanks!
+Tommy Rad I am not sure. Getting amino acids out from the huge mix of them would be really hard and I feel like the concentration is probably pretty low. What is your interest in L-theanine?
Nile Red
Well, it's why I like tea [oolong] because it b-slaps the caffeine into the background and, allows me to drink tea all day.
Really enjoy your videos. Very helpful.
Tommy Rad thanks, I am glad you enjoy them!
snort it
Alternate title: Extracting the little joy I have left in life
Shall we taste that...?
The lighter the roast, the more caffeine content.
Medium to dark roasts are roasted longer and as a result have more caffeine burned off for a more full-bodied coffee experience.
This is teaching me how to make the most potent Thai tea concentrate. This is essentially the only thing I'll be getting out of this experiment and my whole organic chemistry lab course lol.
Is it easier to just have a cup of coffee
*FBI wants to know your location*
It is caffeine not cocaine
i have a theory for an at home crystalization, step 1 should follow brew 1 pot of strong coffee, a big pot. step 2 take the probably cold coffee and evaporate most of the water off, if you filled up the brewing pot with coffee, then reduce it to a quarter of that if possible, it will probably start to burn the bottom of the pot if not constantly stirring, step 3 after reducing the amount of water freeze the pot of coffee in the freezer till frozen solid, after being frozen solid stick back on the stove and heat it back up till its all melted, this entire step should be done in a stove pot along with the evaporation step, step 4 mix rubbing alcohol into the solution, if you have a quarter of the pot roughly, mix a quarter of a quarter of the 90% rubbing alcohol into the pot, stir then pour the pot into a clear column of some sort, like a graduated cylinder but a vase without numbers and is used for plants, or a graduated cylinder works if you have that, allow the layers to seperate, if they dont it fucked up, 75% alcohol does not work for caffeine extraction, the alcohol is indistinguishable from the water, ive tried doing this with pills, i have a 2 gram water bottle waiting to be done something with in my room, 90% iso propyl alcohol should work, 99% is the best, mix and if theres 2 definable layers, take the clear one and boil off alll of the alcohol, which is kind of dangerous so do outdoors, pretty sure all alcohol vapors are toxic in some form whether inebriating, or lethal inhalation so work safely, after boiling you have uncrystalized caffeine an unkown amount, it should be more because its a brewed pot of coffee, you could even just cool and heat the alcohol solution a lot and it could crystalize, or allow it to sit in a still environment for a very long time, i had a water bottle in my room with equate DXM guaifenesin pills mixed into it, i let it sit for 8 months and when i was going to throw it away i seen all of the FINE crystals at the bottom of the bottle, and when i flicked it, crystals fell from the top of the water, i believe the DXM hbr isolated itself and crystalized out of the water, its EXTREMELY bitter and has a faint extremely faint odor that i would associate with the chemical guaifenesin, but when I did a heat test on tinfoil to test whether it was guaifenesin or dxmhbr depending on how fast it burnt with the lighter under it and it burnt up quite fast, the smell was im not even sure, the smell makes my brain wonkey when i think about it though, its definitely probably DXM.
How to extract motivation from deep within my soul.
I would like to extract TV static from my sparkling water please
.
If you shake it and slowly mess with the knob, you should notice that the TV static dissipates.
wow so thoroughly honest
will you do a video where you sinthesize it ?
Eventually
10 grams of coffee makes how many cups of coffee? If it's about one, your yield seems pretty great. Periodic videos extracted caffeine from 6 cups of coffee and got around 100 mg. That's about 16.6 mg per cup for them, your 30 mg looks like a much better yield. Unless they had an unusually low yield, your yield seems a lot higher.
+Mr.chang cooler I really don't know how much coffee it makes unfortunately. I just based the yield on how much caffeine there theoretically is in coffee
Nile Red But perhaps you could try Periodic Video's method of extracting caffeine. That'd definitely give some variation between the tea extraction and the coffee extraction, and i'd love to see if your yield ends up being better than this yield.
That is true. I kind of did it and then realized it was the same, ha. Also, I actually dont have a coffee maker at home anymore...so that makes things more difficult.
Nile Red Ah, that is unfortunate. You kind of did what a coffee maker does anyway though, run hot or boiling water through ground coffee. You'd just have to adjust your measurement to a cup.
Nile Red Also, how did you get your theoretical yield?
Quantification of caffeine is something everyone has to do at the university for pharmacy. All in all the method is pretty much the same, except you do have to shake it a good amount. You said that there is a possibility to make an emulsion. Well thats true, but the emulsion is not stable and will disperse again after a short time, overwise use a bit more DCM. You can also cook the coffee for a longer time, those 15 minutes are not enough. Also try to invest into a Rotavapor, just cooking DCM is not a good idea at all (I hope you got some air-filtering unit above it or a digestor). We use Sodiumsulfate instead of a molecular sieve as drying agent for the DCM. We didn't recrystalise, because we made titrations with it. Reason is also because its purity won't be that good (far from 99%). Cheaper to just buy the pure caffeine from your trusted merchant / pharmacy.
but nice vid!
lol when you start with 10 grams of coffee, of course you're going to get a pitiful amount of caffine. Use the whole can!
crazy808ish the cost of the chemicals would horribly outweigh the amount of caffeine yielded (which isn't expensive in the first place)
I smell the coffee through the vid. XD