Is there a methanol per liter ratio?

[Satoshi]

I opened the valve for the airlock

I also used it to see what kind of pressure was building up during the heating up, on hard water distillation runs it was pretty immense!

 

[doug293cz]

I opened the valve for the airlock

I also used it to see what kind of pressure was building up during the heating up, on hard water distillation runs it was pretty immense!

Did you actually seal up your still while heat was applied? This can be very dangerous. If something lets loose due to the pressure build up, you can release a bunch of flammable vapors, which are an explosion hazard. Also, flying chunks of metal are dangerous. The standard advice to distillers is to never let a condition develop that could allow pressure build up in the system.

Brew on

 

[Satoshi]

Did you actually seal up your still while heat was applied? This can be very dangerous. If something lets loose due to the pressure build up, you can release a bunch of flammable vapors, which are an explosion hazard. Also, flying chunks of metal are dangerous. The standard advice to distillers is to never let a condition develop that could allow pressure build up in the system.

Brew on

Oh god no! My first runs were water distillation, to clean, to check build quality (cheapest 3 pot on Amazon) and to understand about how the pressure side of things works. So I put the airlock in place, as it also has a valve to close too, and kept an eye on the water level in the airlock through a run.

It was interesting, since then I have run wine through, I had the airlock in place to make sure I was achieving a decent pressure and then closing the valve to ensure vapours are pushed through to the condenser.

Then, when I reached cool down, I opened the valve to the airlock so that no vapours could escape and any negative pressure is relieved through the airlock

 

[Satoshi]

SO... all that being said... I know methanol evaporates at 145 degrees Fahrenheit, and ethanol at 175ish. Ideally if I wanted to evaporate out as much methanol as possible, I would need to maintain roughly 145ish degrees for X amount of time, yeah?

So, my original question still remains. But mayhaps if I provide an example?

Say, a brew of grape wine (grape must with added sugar) that finishes off at 14% ABV, is distilled 2 liters at a time (my boiler is a modified tea kettle) into a 1 pint mason jar... what would be a safe assumption as to how much off that is methanol to be tossed out?

I'm new to this too, I ran a sacrificial wine run to clean my cheap rig, I've start to videolog it youtube.com/@radiobane

I ended up getting right into this, I've tried raising the temperature as slowly as possible, I'll be making cuts, pardon the pun, of about 6 hours of video and uploading today.

I have a split triple distillation in progress, I'm hoping to do the third distillation on what I believe is hearts, then I plan to combine selected cuts from the previous runs for a forth distillation to get a final distillate, which I hope will reach next to zero methanol and next to zero contaminants as found in the last of tails.

It's all a learning curve for purifying my banana ferment, future brews and for making essential oils

 

[hawkwing]

I'm new to this too, I ran a sacrificial wine run to clean my cheap rig, I've start to videolog it youtube.com/@radiobane

I ended up getting right into this, I've tried raising the temperature as slowly as possible, I'll be making cuts, pardon the pun, of about 6 hours of video and uploading today.

I have a split triple distillation in progress, I'm hoping to do the third distillation on what I believe is hearts, then I plan to combine selected cuts from the previous runs for a forth distillation to get a final distillate, which I hope will reach next to zero methanol and next to zero contaminants as found in the last of tails.

It's all a learning curve for purifying my banana ferment, future brews and for making essential oils

With that many distillations you won’t have much if any flavor left.

 

[Satoshi]

Disappointing, it did start out as a sacrificial run, so I guess it's not too much of a loss.

I've read that new kit needs to be not only cleaned but 'run in' too, is that right?

 

[hawkwing]

Disappointing, it did start out as a sacrificial run, so I guess it's not too much of a loss.

I've read that new kit needs to be not only cleaned but 'run in' too, is that right?

Yes but that usually starts x with water then vinegar. Then something cheaper than wine if you don’t have heads and tails to run through.