Distillation

[@BmW13294]

You had to have been a professor before this.. feels like high school science with no test. I loved every bit of it, thank you!

[@5satya]

you stole my line!

[@Luke-cx2kf]

As a distiller, it's been refreshing to watch this series of videos. Elegantly correct

[@ClownWhisper]

As a 30 year master distiller there are four players from I hope you don't think that this was a proper procedure for distilling spirits or separating cuts at all he ran that faster than you should run a 50 gallon still. It would be fine for stripping but not for spirit

[@bobweiram6321]

Do you guys use those Pyrex glass beads to accelerate the distillation?

[@waynegilchrist1596]

Several decades ago my distillates had somewhat of a desirable reputation. However, I no longer ply the craft. I had only passed down traditional recipes and techniques from a "family tradition"! I'm amazed at how much I was ignorant of the science behind the process. I can only imagine the potential success I could have achieved with the superior scientific knowledge you have such a knack for teaching. Thoughts of being incarcerated enlightened me to the benefits of shutting down the "business"! I enjoy your videos immensely. Thank you for them.

[@danielanthony1054]

same. i used to subscribe to the idea of two boiling points, the idea that if you surpass 173 degrees but stay below 212 you'll get more alcohol than water.

[@oldscout7]

This is the best explanation of the distillation process that I've seen, to date. Thank you!

[@TechIngredients]

Sure!

[@AaronALAI]

Thanks for the video, your explanations of processes are lucid and concise.

[@firstname5437]

Please keep making videos. It's wonderful how you can thoroughly explain such a wide variety of topics.

[@d.w.5144]

I am a fan from Germany who doesn´t understand everything cause of my bad english. Your channel is so filled up with knowlege in every discipline of science. Great job Mr. I am working in the chemical industrie in Germany. Here we talk every day about safety working. A small advice from me. I hope lots of young people looking your vids. Please tell them to practice safely with things like alcohol etc. Please wear some handgloves then handling with chemicals. Methanol for example is quite harmfull and 50 cc drinking can make you blind or kill you. Also it drains thru skin into your body. You tell it right on banana brandy to sign the glasses . If they drink the first one there is a lot of methanol inside. So i have to thank you for sharing your big big knowlge to us. Hope i see lots more from you.

[@TechIngredients]

Thank you and that's good advice.

[@JamesPrestonThomas]

Another warning to those without being educated in Chemistry. You NEVER handle concentrated acids in glass containers with rubber gloves of any kind!!! The fumes produced between the glove surface and the glass can generate a 'film' of gasses that act as an extremely efficient lubricant and therefore extremely dangerous. Also, Never handle concentrated HYDROFLOURIC ACID at all without researching and understanding its very unique properties and handling methods!!!

[@mannye]

I love how he casually switches to "cuts" lol. I was half expecting him to talk about heads hearts and tails. Great video!

[@pennyjiang211]

do you think it's 30% cuts?I see 300cc for three bottles. so,i guess it is heads,hearts and tails?

[@twwtb]

This is about the best explanation/demonstration I have ever seen about distillation.

[@TechIngredients]

Thank you!

[@ML-qj7eb]

Thanks! You are an incredible teacher. Your knowledge will live forever online and nourish the mind of future generations.

[@M0N0K0I]

I've always wanted to know more about this subject. Thank you for sharing your knowledge!

[@frick-n-frack4191]

Great class sir. I have been brewing for a while now and you just made more sense then any other class I have taken. Well done!!!

[@FreshCoffeeParts]

You have this astounding lab at your cottage !!!! It is amazing!

[@striderkiba9321]

Been binge watching. Priceless information

[@rkeenan2415]

fantastic Video Thank you using so many words and not having back ground music. Very educational thank you

[@TechIngredients]

Thanks!

[@jestempies]

Thank you for the very helpful explanation of the evaporation and distillation process.

[@markimusprime3]

Awesome, always sort of wondered why water evaporated at room temp, explained it perfectly.

[@JoeyVX]

A true chemist has trust in his lab skills and knows when the distillate is safe to drink!! No hesitation what so ever....

[@gearstil]

Very informative video and very well explained. Thank you for the time, energy and all resources that you put to make this video.

[@TechIngredients]

Sure!

[@Gabriel1o1]

First: Very cool intro song then you ve got a talent for explaining things to other. I really enjoyed your videos. thanks for making them.

[@jagardina]

I learned something in the first 2 minutes, not that I didn't know what vapor pressure and evaporation was, but the way to explain it was beautiful and extremely effective. I will likely get my kids to start watching this channel. They are in high school. You are doing a great thing producing these videos.

[@TechIngredients]

Thanks! We're trying to make videos that are informative as well as interesting enough to hold the viewer. I hope they enjoy them.😃

[@lajoswinkler]

One of the best videos on KZbin about distillation, all really well explained. Mind that, with any fractional distillation, heat input needs to be adjusted so that there is slow dripping of the condensate because that means only the topmost volatiles in the column get over. You cranked the heater to maximum, so your column got totally flushed and there was very little fractionating going on. There is also an issue of azeotropic and zeotropic mixtures. With azeotropic ones, no column can perform separation greater than precise value for given atmospheric pressure. Zeotropic mixtures behave like what you described in the video.

[@RoulDukeGonzo]

Thanks for pointing this out. This is what I remember too. Slow dripping gives better separation.

[@danielanthony1054]

yeah you want the top of the column to stay cool to get more reflux

[@ohanailo7743]

You’ve explained the Science behind distillation very well. I give you the, “You Tube Professor award.” 🏆. I’m sure if you were the Professor stuck as one of the seven castaways on, “Gilligans Island,” 🏝 you’ve would have found a way off that Island or make it one hell of a Banana distillation Plantation. Yea, more popular than Cuba before the Castro takeover. Aloha Professor. 🌺🌸🌴❤️🇺🇸

[@PedroThomasi1]

Greetings from Brazil. Excellent explanation and filming. Thank you

[@ethanmye-rs]

The boiling beads work by providing nucleation sites for bubbles to form. Roughed up broken glass is excellent for this - the roughness provides lots of extra sites. If you ever run higher temp distillations, like for sulphuric acid, go with a round bottom flask and a heating mantle. Erlenhymer flasks are more likely to crack. Zeolite is a great way to dry your alcohol.

[@msuasofoodproducts9820]

Thank you for sharing your knowledge. It is very helpful

[@MrBranboom]

You know you're a mad scientist when you mix the chemistry and machining equipment.

[@dwanyetom]

Excellent...direct and stuck to the point two thumbs up 👍🏼👍🏼

[@joehumphries4187]

been doing the exact same thing with my moonshine for years, cool to see it through glass, thanks

[@danielanthony1054]

i only wish that we could make large glass stills. it's absolutely beautiful to see, although of course i understand the need for copper.

[@gingabeard7090]

Way better than Bill Nye! I enjoyed adding to my knowledge in this video. Some may say they were bored but I was involved til the end. Guess I enjoy this kinda thing when someone who explains it has vast knowledge but doesn’t go overboard with terms they know to make their pupels feel dumb! Lol. Thanks science guy. 100%.

[@erikziak1249]

I did not learn anything new, but the video was made very good (although poorly focused at times) with a very good narrative commentary. Well done!

[@Aminuts23]

Some of the things I saw in M*A*S*H episodes are making a lot more sense right now.

[@RobertSeviour1]

Thanks for the explanation of evaporative cooling, I had never 'got' that before. Also, I appreciate that you are using metric units - it's about time that all the 'folksy' measures were eliminated from science talks.

[@LiborTinka]

For even smoother boiling, use boiling chips with irregular shape. Sometimes running a magnetic stirrer is enough to promote even boil.

[@TechIngredients]

Those are good suggestions.

[@tomlomax9909]

+1; I found jagged corners on e.g. pieces of broken glass provide better nucleation sites

I was personally thinking that some kind of grate with spikes at the top could separate the bubbles into desirable sizes, possibly. I'm having a bit of trouble visualizing whether a grate like that would only facilitate flow through one opening if the holes are too small, due to surface tension keeping other holes clogged while one lets gas through. It would be fun to see some tests and math on this, too. Generally, more equations would be nice to have in my opinion.

[@relaxingmusiconly3382]

I wish i had a teacher like you in school, i could have graduated in chemistry

[@whiskeyandsarcasm]

Excellent video! I would have liked to see the hydrometer used once the alcohol and water were mixed as a data point. Obviously I can infer the results but the visualization would have been nice.

[@psycheisssdelic]

really good explanation of distillation thanks

[@TheDarkTiamat2011]

wow You always explain it so good. I really enjoy your videos

[@minxythemerciless]

I've only relatively recently discovered about azeotropes as the reason technical grade sulphuric acid is 98%, nitric acid 68%, and ethanol 95%.

[@NoctisMotus]

Drip... drip.. drip... Not unlike watching paint dry, but far more satisfying. Right this second I'm working on making anhydrous ethanol from some cheap vodka. For some reason I thought I'd take my mind off of the distillation by watching a video on... distillation. :)

[@movax20h]

I realy like how your lab is well organized and looks clean. Also lighting is excellent. It just makes it so much more spacious. How do you deal with all small equipement, tools, cutting tools, etc. It is interesting becuse you do manufacturing in metal, machining, cutting, computer stuff, metrology, chemistry, lasers, optics, electronic mechanics, etc.

[@TechIngredients]

Thanks! It's funny how you grow into whatever space is available. The neatness is important with so many projects being worked on at the same time. Take a look at our lab tour video.

[@movax20h]

Tech Ingredients Indeed. I just found your lab tour. Great video and motivates me to organize my own stuff and declutter my lab.

[@xmp27]

Thank you.. I learned so much. Stay safe.

[@robertmabry4172]

I would love to see a video of your proposed solution to overcoming the azeotrope formed by these specific liquids. Amazing content.

[@updownandallaround]

With all of the TRASH on KZbin, you DESERVE FAR MORE SUBSCRIBERS... Thank you for taking your time to make these videos. I truly enjoy your channel.

[@TechIngredients]

Thank you.

[@randommcranderson5155]

Thanks for this video. What do you use your workshop/lab for when you aren't making youtube videos? I'm mad jealous and super impressed.

[@LukeTeel]

4:05; I believe the correct nomenclature for this tool is "hydrometer" with a d, which measures the density of a liquid. A hygrometer with a g, measures the humidity in the air.

[@noumenanoz8819]

Those beads also prevent what’s called “bumping” not so much a problem with distilling alcohol but with other more unstable mixtures bumping could cause major accident. (Always use them)

[@supergiantbubbles]

I'm really enjoying your channel. Your content is great.

[@TechIngredients]

Thanks.

[@daveb5041]

Easiest/cheapest way to make 98% alcohol for cleaning or just about any household use: Go to the dollar store and buy the 50% alcohol bottles. They will never sell above that. 50% alcohol is useless: there is too much water to kill any germs (70% is ideal better then 91%) and the alcohol is too low for cleaning. Take a good amount of table salt and pour it in until it is about 1 cm above the bottom. Shake for a minute and let it sit for about five. When you come back there will be a layer of 98% on top and salt water with a small amount of alcohol on the bottom. Carefully pour off the top layer and discard the bottom. If you want 70% for antiseptic add water back in. You now have 98% and 70% for about half or one third the cost of regular alcohol respectfully.

[@norvillerodgersspeaks]

or just buy some 91% iso at walmart and use C1V1=C2V2 to mix it to 70%.

[@MrEazyE357]

You can buy 92%. What are you on about?

[@anarchangel7]

@@MrEazyE357 I have heard complaints from friends in other countries who do electronic repairs etc that they cannot buy isopropyl at all and others that can't get unwatered stuff. It however is easy here in the US.

[@MrEazyE357]

@@anarchangel7 Really? Never knew that. Wonder why?

[@4.0.4]

@@anarchangel7 small town Brazil and I can get Isopropyl just fine. Send them an IQ test.

[@playludesc]

It's not only the removal of the high-temperature molecules from the liquid that causes the cooling (in fact, I would say you're correct in saying that this effect is infinitesimal). It's rather that breaking the intermolecular bonds between the molecules requires quite a lot of energy, which is absorbed out of the environment. This is called phase-change cooling and it's how refrigerators, air conditioning, and sweating works. (edit: sp)

[@MrBleulauneable]

FYI, "removal of the high-temperature molecules" and "breaking the intermolecular bonds between the molecules" are exactly the same thing but worded differently.

[@playludesc]

MrBleulauneable Not in the way he explains it. He states that it's the removal of the high-temperature molecules that affects the average temperature. He mentions nothing about the mechanics of what actually makes phase-change cooling so effective.

[@playludesc]

Additionally, phase-change cooling works just as well when the high-energy molecules are *not* removed. Ice melting in a sealed drink container would cool the drink regardless of whether the high-energy molecules can escape. Thus, phase-change and "high-energy molecules escaping" are different mechanisms.

[@MrBleulauneable]

With ice melting in a sealed container high-energy molecules are *still* removed. They are removed from the ice and go to the liquid, that's the *definition* of a phase change. If molecules don't change of phase (ie are removed from one phase) then it's not a phase change, it's that simple.

No, the high energy particles are not removed when ice melts in a cup. They equalize their energies with the lower temperature ones - this is indeed a different process. One takes kinetic energy out of the mixture, the other normalize the energies, although both have a phase change. In one example the total energy in the mixture stays the same, in the other some is removed.

[@MrAcuta73]

After watching your videos out of order, you certainly destroyed a few assumptions I had about distillation....not nearly as efficient as I had ass-u-me'd! Never really played with it outside of High School, and don't really even remember what we did there. I preferred biology over chemistry. ;)

[@doubtingthomas1312]

💜💜💜, Gunna have to pull a marathon

[@flyfaen1]

If the heater is set to limit the temperature to just a few degrees above the boiling point of the liquid you want to destill out, but lower than for the other liquid, the concentration throughout the process will be higher, but it will take longer :)

[@gagnant4]

The mixed liquids don't have individual boiling points. They have one combined boiling point which depends on the current concentration of the two. So as the alcohol comes out the boiling point goes up steadily the whole time until it reaches that of the water. The hot plate isn't so much about the temperature it is producing but the amount of energy it is putting in and what that affects is the speed of the process. A liquid cannot get hotter than it's boiling temperature so turning up the heat only speeds the process but doesn't increase the liquid temperature. That's why you put the thermometer in the vapor path and not in the liquid.

[@RoulDukeGonzo]

@@gagnant4 interesting. I'd forgotten this. Can you increase separation by increasing pressure?

[@gagnant4]

@@RoulDukeGonzo You have the right idea but backwards....increasing pressure raises the boiling temp and the dew point temp, so respectively more power to boil the liquid and more cooling to condense it on the other side. But if you lower the pressure you can use less energy to separate the mixture. There are devices for this used in chemistry labs but for distillation of alcohol, especially at home, it's not a good idea to have a closed system Still, that's when things can explode! :)

[@danielanthony1054]

@@gagnant4 the reason that in distillation we like to go slow and low temp with it is because of the exact thing you said: the more energy you add into the mix once it's at it's boiling point, the liquid will boil faster. and in distillation we're using the top of the still and all the other surfaces as places for water to condense, so if we stay just at the boiling point but not add a lot more energy the distillation will go slow enough that we have enough time for water to condense on the surface and fall back into the pot: reflux. great explanation btw

[@babaksoltani829]

خیلی ممنون و تشکر 👍👍👍

[@omsingharjit]

13:30 What if i maintain the temperature at the boiling point of I P For making just Alcohol to Evaporate ?? Without Evaporating Water in the mixture ? Is it possible ?? 🤔

[@mlgisnotdead7752]

Well, the thing is that all liquids evaporate even below their boiling points, just at a slower rate. This means that the water will still make it through in the scenario you described.

[@kcouche]

Great video...my dad was a chemistry teacher, so I appreciate all the gear too. But let's do something with this. Need instructions on distilling denatured alcohol in safe drinking alcohol. Just in case we're stuck in a hardware store on a desert island...

[@Slacking02]

Best part where he drank it tho 🥃

[@williamarmstrong7199]

I remember my 1st lecture on organic chemistry. The 1st sentence by the lecturer has proved to be very true. " there is no such thing as a 100% pure organic chemical, unlike inorganic chemistry" This has kept me clear of illegal pharmacological compounds all my life. Having seen what they have done to friends and acquaintances of mine. It was a good call.

[@matyourin]

Nice video... can't you increase the alcohol concentration in the first glas by heating the mixture just to about 85°C? Because alcohol will start vaporizing earlier (80°C I think) than the water?

If you think about temperature as random motion in a bunch of particles, when things bump into one another one particle may gain energy and the other lose some. This means that even if the average temperature is below the boiling point of water, some water molecules will still reach the energy they need to evaporate from the mixture - exactly why there is still water in the first distillation batch, and why water evaporates even if left sitting on the ground on a chilly day.

[@RoulDukeGonzo]

Have you ever tried synthesizing methyl amphetamine? Just curious.

[@kevinwen5695]

I am envious of your shop. No, it is very cool though...

[@KingNast]

So is this what an azeotrope is? It makes so much sense now. The way you explain things reminds me of the Great Explainer Richard Feynman. Seriously!

[@TechIngredients]

That's a high standard! Thanks you.

[@naingwintun985]

canI use this method to make fractionated coconut oil ?

[@jeanpierrelabonte2868]

This video is about distillation. I was wondering you investigating what are the molecular constituant of a mixed liquid just knowing their boiling point and the quantity of the solution. I know their is a way.

[@surfbound22]

will marbles work in a larger still like the glass beads?

[@mikemaster1773]

Great explanation of vapor pressure vs atmospheric pressure. Two thumbs up. I wonder how your boat is doing?

[@benjamindejonge3624]

I like the Pyrex marbles idea

[@InstrumentZZKD]

It is helpful,Thanks for your video!

[@sailingsolar]

You gave a fantastic explanation of distillation out of the gate. I expect that much less water would make it through, as evident by specific gravity at the end, if you had limited the heat input to be just above the boiling point of the alcohol but at a slower rate. Would that be justified expectations?

[@graphene1487]

Wonderful video! Thank you

[@robertsmida9601]

Dud you had to be an awesome teacher. If I had you for a physics teacher I probabely would have went to college and become a useless crybaby liberal. You actually kept my attention the whole time. And you got some really cool toys.

[@lethaleefox6017]

I have a water distillation system that removes crud from the water... the build up of crud needs flushed out of the boiling tank... and boiling the water off that crud you can get crystals forming...

Really nice video! Also, new camera?

[@superdau]

I think I heard Isopropanol is about as toxic as Ethanol, but does it get you drunk as well?

[@TechIngredients]

Isopropanol toxicity is similar to ethanol. One of the metabolites is acetone and it's a CNS depressant. It would likely get you drunk if you could stand the awful taste.

[@mikeconnery4652]

Great video

[@bjeffrie22]

Really well done. Thank You.

[@vtstudio31]

was that isopropyl that you just drank?

[@TechIngredients]

No, water... mostly.

[@mumairabdullah5342]

Helpful and thank you sir

[@kailashbrahmaloka908]

Hi ?Is it at Superior or equal to 86% the percentage of af alchohol get?Thanks a lot

[@timhogue2808]

To those of you who may see a distillation project in your future, please consider this: It is actually more simple than you may think to get an BATV license for a small pilot distillery setup. This is especially so if you just plan on making "fuel grade" ethanol, or some other non-consumable use. Just make sure you take good records of what was produced, and where it went, in case they drop in to check on you. As with growing pot in non-legal states, bootlegging is a federal crime, and your entire personal property can be seized if you are not following the laws. Contact your local office and do it legally. When distilling "mash," "beer," or whatever mix of yeast/sugar-bearing malted grains, Rye, rice or feed corn + fermenting -> alcohol(s), as done by most moonshiners, one must be careful to be aware of the likelihood of methanol in the mix as a byproduct of the fermentation process. Some wild yeasts floating out in the woods like to make both types of alcohol. This is especially true when fermentation is done with questionable mash ingredients, purposely using wild yeasts, or when cleanliness is ignored. Most commercial distillers are keen to this and will take whatever comes over first and discard it out of safety concerns. They also make use of re-flux columns that are glass or copper tubes filled with glass beads or copper drip plates/screens, with the vapor take off at the very top of this column on its way to the condenser. This allow for more accurate temperature measurements in the very top of the column so that they have a much better handle on what they are getting. Methanol has a lower boiling temperature than water an ethanol, and will always come first. A temperature increase in the the re-flux column tells you the methanol portion is done. Unless you have a use for it, pitch it before someone accidentally drinks it and goes blind. This is why the old moonshiners of the prohibition era created so much poisonous hooch that made a lot of blind victims out of people who were willing to drink anything. A lot of the bathtub gin of the era tasted so awful that the modern "cocktail" was born from those days.

[@babaksoltani829]

خیلی ممنون Thank you

[@lareebice5504]

Where do I get one for my distiller I got one like u have

[@VincentHarrydragonphire]

Drinking on the job. ;)

[@gregorycampbell2880]

Would adding boiling bubbles be beneficial to distilling for alcohol/moonshine production? If the boiling becomes more gentle wouldn’t it reduce the waste particles (dead yeast and husks) that could be tough through to the final product?

[@TechIngredients]

Yes, it should.

[@DmitryMyadzelets]

You've said that liquids evaporate at any temperature. Then, can distillation be done without boiling? Say, at 60°C? If intensified with a blowing fan? I'm thinking of getting still water.

[@TechIngredients]

Yes. The process will be VERY slow, but it will work.

[@nosenseofhumor1]

Have you ever done a freeze distillation like you would with apple jack? I’ve had a hard time finding explanations on how it works from a chemistry/physics perspective. Why isn’t the ethanol just trapped in the water ice?

[@TechIngredients]

I haven't yet.

[@lareebice5504]

Ok what is that yellow thing hooked too. I think it's a thermometer right?

[@TechIngredients]

That is a Uei digital thermometer.

[@patjint9815]

what is the name/ model of that yellow temperature meter?

[@PatarTheGreat123]

Did you acquire this equipment online? Could you site the source of such things?

[@TechIngredients]

This lab equipment we demonstrated can all be found on eBay, although we aquired it from a variety of suurces including eBay.

[@Berghiker]

I have a 24/40 connection but which cac clamp do I get? The 24 or the 40?

[@TechIngredients]

The clamps placed at these joints are sized to fit the complementary diameters of the two glass fittings.

[@Reub3]

So just a quick question concerning distillation of water that has a high concentration of chlorine and fluoride: Would I be able to remove 100% of the fluoride using either method of distillation or will there always be some small amount left behind in the process?

There would still be a little bit left, he goes over that a few times in different ways in the video...

[@valcye]

Super Critical Fluid Extraction next please

[@AbdulDsouza]

Vould you please rrpest eith sea water?

[@treystills]

Is there a method more effective than distillation when separating water and alcohol? Thanks

[@TechIngredients]

There are other methods such as reverse osmosis and selective surface adsorption, but they may be less practical. Distillation is very simple.

[@amascia8327]

There are "trick" variations of distillation: Multi-stage flash distillation (MSF) Multiple-effect distillation (MED) Vapor-compression (VC) and vacuum. They're all on Wikipedia & other places on the internet.

[@invisiondesign9955]

Where did you get that equipment?

[@invisiondesign9955]

the glass apparatus

[@TechIngredients]

eBay

[@gerrymcerlean8432]

Question: If, instead of continuous heating of the alcohol/water mixture, its temperature was held at the boiling point of ethanol, would the separation process be improved as more alcohol and less water would evaporate? Great, well explained video. Thanks.

[@TechIngredients]

Thanks. The answer is no. The mixture has a boiling point that depends on the fraction of alcohol present in the solution and this temperature slowly rises as the fraction of alcohol drops. Holding the temperature at any point will cause the boiling to stop.

[@tri-forceblades3123]

I noticed you drank the last distillate which is mainly water. My question is would there still be enough of the harmful ingredient in the rubbing alcohol left over, pr did it get distilled along with the first and middle batch? Or did it get distilled at all which would make the first batch actually drinkable

[@TechIngredients]

There will always be a little of every component which is present in the original mixture, in every division of the resulting product, but the concentration will be very low if the vapor pressures differ significantly. I couldn't taste the alcohol, but I wouldn't consume a large quantity of it.

[@martincooks7219]

@@TechIngredients You mentioned the alcohol as being isopropanol?! if it was ethanol it would be drinkable, but propanol is not to be advised. I do enjoy all your videos and share your enthusiasm for science in general. I am trying to grow the love for science in the grandchildren after I succeeded somewhat with my children. Not many people bridge physics and chemistry as fluently as you do. A short mention or discussion of azeotropes would help in explaining the alcohol in the residue and clarify some of the discussion in the comments.

[@jeanrostandshombana1381]

sir, i Need to distill the isoamyl alcohol from banana how can i proceed, need your help please with also the kinds of yeast and other ingredients should i use for this purpose

[@rogerlundstrom6926]

Hmmmm... When you bring up "vaccuum" I started pondering whether there would be a viable way to make a 'still based not on the process of heating to reach boiling temperature, but to reduce pressure until it reaches boiling temperature.. could it work? is it feasible? are there any cons not apparent by first glance?

[@TechIngredients]

That is frequently done. You need to maintain the temperature of the receiving vessel below the temperature of the distilling vessel and a vacuum tight system and that's about it.

[@dw424]

@@TechIngredients Would a vacuum distillation be more energy efficient (total BTU energy) or faster than one done at atmospheric pressure?

[@tm71100]

Amazing video.