Sounds like somebody else noticed the assorted bits and pieces that went on the table instead of in the dish - That's what got me thinking pretty much the same thing... Only I was getting a mental image of a "lab safety" type sign reading "ATTENTION! All floor or table sweepings or vacuum cleaner pickup must be placed in the reclamation bucket to be incinerated and added to a future batch"
You should consider adding a copyright notice to your warning. That can be as simple as using the word "Copyright" followed by the year of publication.
With nearly daily vids.. I've never bought a bottle of acid, do not own a silver cell made from my wife's discarded kitchen equipment, and really don't want to have to worry about nitric eating the wrong set of gloves... But, based on the last year's of watching... I'm pretty sure i can do a mad max style purification to get me through the apocalypse.. Thanks Mr Sreetips
Lol I've been watching for years and I'm 100% positive I could walk into sreetips lab and run some batches. I finish his sentences while I'm watching and I'll even catch him doing things (or not showing it) like forgetting to add sulfuric acid to the gold solution in aqua regia to precipitate any lead that might be present. 😂
Don't underestimate the importance of PPE, especially a face shield (not just goggles) and those red fumes are fiendishly toxic. Twice as toxic as cyanide, per the chemical literature. I always get the big eyes when I watch a Sreetips video, but I simply will not have nitric acid around, I just don't a place to do this work safely.
Don't forget how mathemical chemistry is and how dangerous what Sre tips does truly is. He makes it look easy because he is very knowledgable and great at what he does❤
Stree. Let me start off by saying that you are my hero. You literally got me started into the career that I'm now doing. I learned all them processes from you. You don't have to add the sugar to get silver metal. The oxide alone with heat will turn into silver metal
@0:30 You could have bubbled carbon dioxide into the solution to form sodium carbonate, which would have a good solubility in hot water, so rinsing it would be quicker. In your last video, perhaps you could have used an electrical pH-meter to reduce the added sodium hydroxide in the first place. Thank you for your great videos!
I have noticed that you throw a little cemented silver and sometimes even gold on the table and it reaches the floor. It would be fun if you cleaned your workshop/lab and purified all the dust to see how much silver/gold comes out.
Glad you had your typical shot to compare it to. That was awesome. I hate it creates the high level of waste but there’s always give and take. Time or energy
You should consider upgrading and buying a kiln. The melting phase seems to be the lowest capacity part of your refining process. Current process is also not energy efficient and cost of refining could be reduced with a kiln.
the other downside of this silver chloride method is you have to do so much lifting and pouring (pouring in the rinse water and pouring the rinse water out, and lifting rinsewater buckets around) i guess you cpuld do siphons instead, or some may consider that not a downside but a benefit from the physical activity. but my point is the silver cell method is less labor intensive and less liquid waste going around
Have you thought about either switching out that big cutting nozzle on your torch for a finer one? That and not turning your gas and O2 up so high would help control blowout. You could also probably just use a brazing torch instead of a cutting torch, although it wouldn't be as fast.
Excellent video, as always. Would the higher purity shot affect the slimes produced in the anode filter basket? Or is that more of a product of the electrolyte?
I agree. I wonder how much of a difference it will make. I'm betting that the filter will clog less/slower obviously. And possibly the crystals themselves will grow faster because the silver won't have to be separated from its impurities before it goes into solution? Idk. Just my SWAG.
I agree his cadence is spectacular. had one movie with James Cromwell doing the narration, and we found some issues, so he popped in one day and redid those sections. Still finding the voices for narration is always hard and the cadence always is the biggest thing.
Since you're doing this in a fume hood, couldn't you just heat the Silver Chloride to liberate the Chlorine leaving just pure Silver behind without the need for all of the washings?
The silver chloride has to be chemically converted to silver oxide, then to silver metal. These are reduction and decomposition reactions. I understand where you are deriving your question, but it is much different than having separate silver metal and chlorine gas in a hypothetical mixture, then simply separating the two by exposing to heat.
The description of the careful melting method made me think about if it could be possible to be even more economical with the torch gases. If only some of the heat that is being lost to the air could be trapped or reflected back onto the melting area. I'm sure some sort of lid (with a hole in it for the torch) was tried in the industry, but the gases still need to escape somewhere, and maybe that's where most of the heat loss happen. I wonder if an infrared camera (the kind that laptop reviewers like to use to demonstrate heat distribution) would provide some insights into the heat distribution patterns around the melting table. I imagine there's a rising column of hot air above the crucible... or maybe air currents go in every kind of direction due to the pressure of the burning gases...
Both the dirty shot and the cleaner shot looks great to my new eyes, I really loved this video being so different from your others, thanks for the wonderful videos they make my days for sure!
First thing this made me realise. It doesnt take a lot of copper to affect drasticly the colornof the silver shots. Second this, you should defenetly run the clean silver in the silver cell before the dirty silver.
Adding dilute acidic acid very slowly from your nitric delivery system to the lye base rinse should help neutralize the solution and make it easier to rinse = less volume. A pH indicator for 7 would help as well.
Hello cheif I'm trying to process an amount of our silver scraps, and I'm trying to determine the best methode nitric boils or just smelting and cupelling want to try a sample ?? Thanks
Very fascinating, thank you so much for these video series! I can tell that there's so much work involved, let alone filming and editing. Slightly disappointed that you don't try to recover the copper as well, must not be valuable enough for the trouble I guess. Still though, very thorough and impressive work.
What would happen if you just melt the silver powder directly into a graphite mold in the electric furnace ? Always asked myself this question. Thanks 👍🏻✌🏻🇨🇦
I’m so glad there was the side by side comparison. The silver chloride conversion method looks so much nicer. With silver shot like that you could almost use your electrolyte 3 times in the cell?
@@sreetips AgCl is much more dense than water, so the water content should not matter very much. Anyway, I've enjoyed your work for many years. Thanks.
Just out of curiosity why don’t you use graphite crucibles instead of the ceramic??? You don’t have to “season” them and they can potentially last longer too…
@@sreetips thank you, i've recovered some silver chloride using hcl and want to try the lye and sugar. last time i recovered silver i just used copper to drop silver from solution. i have my silver chloride sitting in water. it's not as much as yours but it adds up. ihave the gold down since i been watching you and others doing gold refining. I also bought the hope's book but there is so much it talks about. confusing for me. I also do the refining outside and leave it and come back to check on thing as it doing its thing. So far I have about two ounces recovered and the solutions in 5 gallon buckets.
Why do the individual granules have different colors? Does it have to do with the amount of oxygen exposure the molten silver gets before it hits the water? I would assume every piece of shot from the same molten metal would come out with the same color.
I use a different method on my Silver Chloride because I don’t like working with lye. The end result is still the same but it does take a little bit longer.
It still amazes me that the mapp gas torch just doesn't quite melt that much silver. The flame is about twice as hot as the melting point for silver. I understand the science of it but it still seems unintuitive to me.
i know youve got lots of silver sitting around, have you ever thought about casting some into something unique that you find interesting just for fun, or to sell at a premium since then it would be "art" and not bulk
@@sreetipstoo bad we couldn't get @bigstackd to come in you and he would make a great team up and you'd have your silver chess set in a day or 2 😊 haha one can dream!
What would happen if you just put the cement silver powder directly into the silver cell basket instead of melting it and creating shot first? (as it's fairly pure already)
I think your electrolyte will last longer with this more pure batch of silver shot. Might be worth it to get your regular silver shot to this purity???
The pH level doesn’t matter. Hydrochloric acid level doesn’t matter. The only thing that matters is the level of excess nitric. Excess nitric will cause problems when trying to precipitate the gold.
Nice recovery sir. Does the reaction need the heat in order for the reaction to react faster? Or can you do an ice bath. Ty Chief as always. Chemistry is much more fun with you. 👍
@@sreetips Thank you. By the way I wasn’t arguing last week with you about money and its value. I think it’s a shame how the government can just flood the market when the prices get where they don’t want them. No one puts a cap on their salary and bonuses. Always crappin on the little guys. 👍❤️🤙
Just to let anyone know who does not know… when you empty a pack of your ph test strips aka litmus paper… you have another row worth at the bottom where it is stapled into the pack. #labhack
12:37 well, as a leather worker once told me, if you want to make money you need to find a way to make things from your scraps! I’ll take half a kilo of waste bucket silver any day! Haha
Hi wir warten das sie mit rodium und irudium ein Video machen,,,damit das wir mit pgm endlich drauf haben ❤ mit eure Videos haben wir gold pilatin ,paladium siber ein meister geworden danke cik tauzend mahl 🎉,aber rodium und irudium feinigen können wir keinen ,mfg.. ich hoffe bald ❤
It would be interesting if you did a video like the jewelers floor video but with your own melt table and floor sweepings.
Sounds like somebody else noticed the assorted bits and pieces that went on the table instead of in the dish - That's what got me thinking pretty much the same thing... Only I was getting a mental image of a "lab safety" type sign reading "ATTENTION! All floor or table sweepings or vacuum cleaner pickup must be placed in the reclamation bucket to be incinerated and added to a future batch"
You should consider adding a copyright notice to your warning. That can be as simple as using the word "Copyright" followed by the year of publication.
Thank you
Im hypnotized by these videos. Fascinating!
With nearly daily vids.. I've never bought a bottle of acid, do not own a silver cell made from my wife's discarded kitchen equipment, and really don't want to have to worry about nitric eating the wrong set of gloves...
But, based on the last year's of watching... I'm pretty sure i can do a mad max style purification to get me through the apocalypse..
Thanks Mr Sreetips
Right?! Sreetips is a great teacher and I also firmly believe I could refine silver and gold from watching over the last year too 👍
Lol I've been watching for years and I'm 100% positive I could walk into sreetips lab and run some batches. I finish his sentences while I'm watching and I'll even catch him doing things (or not showing it) like forgetting to add sulfuric acid to the gold solution in aqua regia to precipitate any lead that might be present. 😂
Don't underestimate the importance of PPE, especially a face shield (not just goggles) and those red fumes are fiendishly toxic. Twice as toxic as cyanide, per the chemical literature. I always get the big eyes when I watch a Sreetips video, but I simply will not have nitric acid around, I just don't a place to do this work safely.
Don't forget how mathemical chemistry is and how dangerous what Sre tips does truly is. He makes it look easy because he is very knowledgable and great at what he does❤
@@alanpecherer5705 and a fume hood for sure!
This channel never ceases to amaze me, what I learn watching is amazing, then hitting the comments, it's like a perfect circle. Thanks everyone!
It would be cool to see you do a video of a deep clean of your shop and refine all the dust you clean up!! Thanks
Stree. Let me start off by saying that you are my hero. You literally got me started into the career that I'm now doing. I learned all them processes from you. You don't have to add the sugar to get silver metal. The oxide alone with heat will turn into silver metal
But I enjoy the boiling reaction as I add the sugar.
Not bad Chief... $350-400 bucks that didn't get wasted in the bucket...WE'RE rolling now!! 🤣
@0:30 You could have bubbled carbon dioxide into the solution to form sodium carbonate, which would have a good solubility in hot water, so rinsing it would be quicker. In your last video, perhaps you could have used an electrical pH-meter to reduce the added sodium hydroxide in the first place. Thank you for your great videos!
Bubble CO2? I’ll try that.
Waiting for that video now 🤦
I have noticed that you throw a little cemented silver and sometimes even gold on the table and it reaches the floor. It would be fun if you cleaned your workshop/lab and purified all the dust to see how much silver/gold comes out.
Good Afternoon Sreetips 🤠 Thank you for your dedication and for sharing your experience with us. God Bless. 🙏
I really enjoyed the silver drying on the heat. Very satisfying. Thanks for the content!
Glad you had your typical shot to compare it to. That was awesome. I hate it creates the high level of waste but there’s always give and take. Time or energy
Mr. Tips. Could you please refine the slimes from the silver cell?
Yer' easily in my top 3 channels.
Thanks. I've learned so much.
Oh my, that silver shot is so bright compared to the other container. 👍🏻❤️
You should consider upgrading and buying a kiln. The melting phase seems to be the lowest capacity part of your refining process. Current process is also not energy efficient and cost of refining could be reduced with a kiln.
It’s my silver-refining weak link.
@@sreetips I very much enjoy your videos though! Thanks for posting updates. Can’t wait for more waste processing videos.
the other downside of this silver chloride method is you have to do so much lifting and pouring (pouring in the rinse water and pouring the rinse water out, and lifting rinsewater buckets around) i guess you cpuld do siphons instead, or some may consider that not a downside but a benefit from the physical activity. but my point is the silver cell method is less labor intensive and less liquid waste going around
Have you thought about either switching out that big cutting nozzle on your torch for a finer one? That and not turning your gas and O2 up so high would help control blowout. You could also probably just use a brazing torch instead of a cutting torch, although it wouldn't be as fast.
Excellent video, as always. Would the higher purity shot affect the slimes produced in the anode filter basket? Or is that more of a product of the electrolyte?
There will be far less to no slimes at all with high purity silver.
It will be interesting to see the resulting crystal structures from this more pure finer silver shot ...
I agree. I wonder how much of a difference it will make. I'm betting that the filter will clog less/slower obviously. And possibly the crystals themselves will grow faster because the silver won't have to be separated from its impurities before it goes into solution? Idk. Just my SWAG.
Also, look into narration/voice over. You do have a unique voice and cadence that could lend itself to certain things with ease.
I agree his cadence is spectacular. had one movie with James Cromwell doing the narration, and we found some issues, so he popped in one day and redid those sections. Still finding the voices for narration is always hard and the cadence always is the biggest thing.
Thank you
Since you're doing this in a fume hood, couldn't you just heat the Silver Chloride to liberate the Chlorine leaving just pure Silver behind without the need for all of the washings?
The silver chloride has to be chemically converted to silver oxide, then to silver metal. These are reduction and decomposition reactions.
I understand where you are deriving your question, but it is much different than having separate silver metal and chlorine gas in a hypothetical mixture, then simply separating the two by exposing to heat.
No, but it can be done in a furnace with lots of soda ash (sodium carbonate), so I’ve been told. But I’ve never tried it.
Wow, the time lapse of the silver drying was incredible!
Back in the 2000s almost all rubber gloves were purple. I remember when black came out and how expensive they were.
The description of the careful melting method made me think about if it could be possible to be even more economical with the torch gases. If only some of the heat that is being lost to the air could be trapped or reflected back onto the melting area. I'm sure some sort of lid (with a hole in it for the torch) was tried in the industry, but the gases still need to escape somewhere, and maybe that's where most of the heat loss happen.
I wonder if an infrared camera (the kind that laptop reviewers like to use to demonstrate heat distribution) would provide some insights into the heat distribution patterns around the melting table. I imagine there's a rising column of hot air above the crucible... or maybe air currents go in every kind of direction due to the pressure of the burning gases...
Infrared would be neat
have you checked the use of an oxy-propane torch, it should reach the temps you need and it would be cheaper than acetylene
Yes
Hey Senior, how about some nice big Silver bars!!
Both the dirty shot and the cleaner shot looks great to my new eyes, I really loved this video being so different from your others, thanks for the wonderful videos they make my days for sure!
First thing this made me realise. It doesnt take a lot of copper to affect drasticly the colornof the silver shots. Second this, you should defenetly run the clean silver in the silver cell before the dirty silver.
Go through like veggies through a goose
@@sreetips Are you saying it's going to melt like butter in a pan?
Yes
Adding dilute acidic acid very slowly from your nitric delivery system to the lye base rinse should help neutralize the solution and make it easier to rinse = less volume. A pH indicator for 7 would help as well.
Acetic*
Super interesting !!!! So much faster than cementing with copper 😮
Hello cheif I'm trying to process an amount of our silver scraps, and I'm trying to determine the best methode nitric boils or just smelting and cupelling
want to try a sample ??
Thanks
Very fascinating, thank you so much for these video series! I can tell that there's so much work involved, let alone filming and editing. Slightly disappointed that you don't try to recover the copper as well, must not be valuable enough for the trouble I guess. Still though, very thorough and impressive work.
Clean copper for refining is cheap and plentiful.
What would happen if you just melt the silver powder directly into a graphite mold in the electric furnace ? Always asked myself this question. Thanks 👍🏻✌🏻🇨🇦
Getting a graphite mold hot enough to melt silver would ruin the graphite mold.
Very nice series. Love it.
Hi Sreetips! Great vid again! Question for you, could you use that caustic waste liquid to drop the iron out of your final waste bucket?
Possibly
I’m so glad there was the side by side comparison. The silver chloride conversion method looks so much nicer. With silver shot like that you could almost use your electrolyte 3 times in the cell?
Possibly
Can you use weak acetic acid to neutralize the lye quicker? The sodium acetate would be very soluble.
Someone suggested bubbling CO2 to convert it to sodium carbonate.
Hello Mrs and Mr Sreetips...
Always thing to do as a refiner🌺🌺
Nice clip as always Sir🌺
God bless you🙂🌺🌺
Thanks Arne!
Love your vids. Thanks for the hard work. Why not weigh the Silver Chloride to determine the amount of Sodium Hydroxide to add?
Because it’s important to keep the silver chloride moist.
@@sreetips AgCl is much more dense than water, so the water content should not matter very much. Anyway, I've enjoyed your work for many years. Thanks.
Could you use something like white vinegar to neutralize the alkalinity? Water works, but would that ruin the silver?
I don’t know
What respirator do you recommend for the acid fumes?
I’d use a fume hood for acid fumes. I wear a 3M P95 mask for melting the metals.
Thanks
Is this some kind of new procedure for you or something of am I just not been on the channel in a while this is really cool
I’ve done this many times before. Just figured I’d throw it out there again for some of my new viewers who’ve never seen it.
Just out of curiosity why don’t you use graphite crucibles instead of the ceramic??? You don’t have to “season” them and they can potentially last longer too…
I bought a dozen dozen (a gross) of them when I first started refining.
Could you use the powder form of the silver in the 6 liter and convert the powder to silver crystals
No, it clogs the filters.
I know you are showing other methods for converting silver , Which do you prefer ?
I prefer cementing on copper then run it through the silver cell.
can you use rooto household lye based crystal drain cleaner or is it not the same sodium hydroxide and pure lye? for silver chloride
Rooto lye is pure sodium hydroxide and can be used to convert silver chloride to silver oxide.
@@sreetips thank you, i've recovered some silver chloride using hcl and want to try the lye and sugar. last time i recovered silver i just used copper to drop silver from solution. i have my silver chloride sitting in water. it's not as much as yours but it adds up.
ihave the gold down since i been watching you and others doing gold refining. I also bought the hope's book but there is so much it talks about. confusing for me. I also do the refining outside and leave it and come back to check on thing as it doing its thing. So far I have about two ounces recovered and the solutions in 5 gallon buckets.
Enjoyed this we would love to see a beautiful silver bar one day when you don't need the silver to use for the silver cell 😊
Goooood afternoon from central Florida! Hope everyone has a great afternoon!
Goooood afternoon!
Why can't you evaporate the liquid waste and then dispose of the leftover solids accordingly etc?
I guess you could, but I’ve never tried it.
Seems like there could possibly be some viable recoverable solids possibly a well.
Why do the individual granules have different colors? Does it have to do with the amount of oxygen exposure the molten silver gets before it hits the water? I would assume every piece of shot from the same molten metal would come out with the same color.
It only takes a trace of copper to turn silver real ugly.
@@sreetips I'm not surprised that the copper contamination created some color but I figured it would be evenly spread through all the pieces of shot
I use a different method on my Silver Chloride because I don’t like working with lye. The end result is still the same but it does take a little bit longer.
It still amazes me that the mapp gas torch just doesn't quite melt that much silver. The flame is about twice as hot as the melting point for silver. I understand the science of it but it still seems unintuitive to me.
i know youve got lots of silver sitting around, have you ever thought about casting some into something unique that you find interesting just for fun, or to sell at a premium since then it would be "art" and not bulk
I’m still considering a solid silver chess set. But I’m running out of time.
@@sreetips that would be amazing to watch
@@sreetipstoo bad we couldn't get @bigstackd to come in you and he would make a great team up and you'd have your silver chess set in a day or 2 😊 haha one can dream!
Really enjoyed it, would love to learn one day.
If you do more gold inquarting, would you use this impure shot or some flatware?
Flatware.
wow it really does look like wet cement so very cool Sreetips .
I'm glad you made these videos
What would happen if you just put the cement silver powder directly into the silver cell basket instead of melting it and creating shot first? (as it's fairly pure already)
It clogs the filter, don’t know why, it just does.
Is it possible just to put the powder into the basket bypassing the shot process?
No, clogs the filter
I think your electrolyte will last longer with this more pure batch of silver shot. Might be worth it to get your regular silver shot to this purity???
Yes, I think it would.
He put the lime in the coconut 😂
Just wondering why you created silver shot? Could you not just put spoonfuls of cement silver into the basket of the silver cell?
No, clogs the filter
Always very good educational videos Sreetips..thanks mate 😎👍🇦🇺
Dear sir for gold precipitation how much pH leval on Aqua regia
The pH level doesn’t matter. Hydrochloric acid level doesn’t matter. The only thing that matters is the level of excess nitric. Excess nitric will cause problems when trying to precipitate the gold.
thank yo sir@@sreetips
You are welcome. Another 1/2kg brought back to life! Thank you Sir!👍👍🤟
That's a great yeald sir well done six stars brother
Awesome video beautiful silver shot thanks for sharing sreetips
Nice recovery sir. Does the reaction need the heat in order for the reaction to react faster? Or can you do an ice bath. Ty Chief as always. Chemistry is much more fun with you. 👍
I don’t think I have enough ice to keep it cool.
@@sreetips Thank you. By the way I wasn’t arguing last week with you about money and its value. I think it’s a shame how the government can just flood the market when the prices get where they don’t want them. No one puts a cap on their salary and bonuses. Always crappin on the little guys. 👍❤️🤙
No foul
How do you go about retrieving the silver that is adhered to the melt dish?
One source says to melt the melt dish in hot diluted water sulfuric acid. I must try it one day.
Why do you have to melt this into shot. Can't you just use it in the silver cell as is?
No, it clogs the filter
Just to let anyone know who does not know… when you empty a pack of your ph test strips aka litmus paper… you have another row worth at the bottom where it is stapled into the pack. #labhack
Excellent! Thank you
I pretty sure you'd get silver and gold off the sweeps from your melt table.
you can see the gold or coper in the new shot.
Probably a little copper
Night and Day difference Sreetips 🏴☠️ Excellent Work 🐉
That is much cleaner looking shot than usual.
Nice and that almost pure silver shot will be Ulta pure when you run it through the silver cell
Would this silver produce more silver in the silver cell than impure silver? 🤔
No. For every 100g of this silver I’d harvest 99g of pure silver crystal.
did you count how many times you used the pipit to pull liquid out of the silver lol
Was it sixty time?
@@sreetips i lost count lol
Counted twice, it was fifty
@@sreetips 150 milliliters nice that took a minute lol
@@sreetips about ten time i would of hooked up the vacuum pump lol
I wanna try this before i die, i'm writing down how many buckets i need, you could say i'm making a bucket list 😂
Good one! My garage looks like a bucket farm
If you were to wait a few days to a week after the lye reaction would it stabilize naturally?
I don’t think so
Always interesting!
Random question: is it possible to make an electrolytic gold cell?
Yes
12:37 well, as a leather worker once told me, if you want to make money you need to find a way to make things from your scraps!
I’ll take half a kilo of waste bucket silver any day! Haha
Me too!
Great work team! Keep up the good work chief.
Now I see why you do it the way you do. Silver chloride is a pain to deal with.
It’s faster, but lots of waste to deal with.
The King of Conversion.....
what happen if when you rinse it, it doesnt gets into lower ph?
and also, could you boil it over and over to get the PH down?
Keeping rinsing and the pH will come down.
@@sreetips i noticed. But if we dont do it and straight smelt it? What will happen?
The lye will begin to dissolve the silica melt dish.
Truly Amazing!
You couldve added a small amount of hcl to lower the ph then you wouldve had less waste solution to deal witj
I’m not sure how that would work, but it sounds logical
love your content.. awesome!!!!!!!
$395 is not a bad payday. 👍🏻
Witam witam i pozdrawiam serdecznie z Polski 🇵🇱👍 👍👍
Good job 👊
Hello!
Hi wir warten das sie mit rodium und irudium ein Video machen,,,damit das wir mit pgm endlich drauf haben ❤ mit eure Videos haben wir gold pilatin ,paladium siber ein meister geworden danke cik tauzend mahl 🎉,aber rodium und irudium feinigen können wir keinen ,mfg.. ich hoffe bald ❤
6:40 for forbidden pudding
i have around 2kg of silver that i need to refine would u do it for me street tip lz
I only work on my own material. This is my hobby
A turkey baster would probably speed up that initial process of getting that last of the water sucked out instead of ur little dropper :)
Yes, I need to order a glass turkey Baster
U should get a turkey baster for taking more out of the dish😊
Agree
My tap water is pH 8.5 to 9
I think ours is slightly acidic
Loving it!!