Yes the ethanol is 92% and cloudy. The best we can tell is that the cloudiness is from the still itself. It seems as if some of the copper in the still has oxidized and is leaching into the finished product. We plan on cleaning the still and re-distilling this with a later batch to clear it up. It is not really necessary to clear it up, as this is never intended for human consumption. We are only using the ethanol as a fuel, the small amount of copper won't do much to the engine. The only reason to re-distill it is that it keeps the copper from contaminating our clay molecular sieves we use to to take the ethanol to 98%. Our last part of our process is also to denature the ethanol which will also make it toxic to consume.
@@AgTeacherThoughts that may be a result of too much yeast nutrient. It tends to push the mash pH down. A low pH and you can get copper acetate (also from a bacterial infection causing acetate production) or copper sulfate. A high pH can make stuff too I think. Either way will give you that blue slue
Yup, we checked the pH on our current run to make sure that doesn't happen again. Right now we are doing a wheat fermentation. It's looking pretty good. We'll know soon how it goes.
Do you have other videos on this subject? Interesting
Certainly, I have a whole play list: th-cam.com/play/PLdLMsDhSVF-neMlCi_DuzlFmx6x8qvhAn.html
@@AgTeacherThoughts cool! Thanks!!!
Is the cloudy produt 92% or is that just the tail end of the run?
Yes the ethanol is 92% and cloudy. The best we can tell is that the cloudiness is from the still itself. It seems as if some of the copper in the still has oxidized and is leaching into the finished product. We plan on cleaning the still and re-distilling this with a later batch to clear it up. It is not really necessary to clear it up, as this is never intended for human consumption. We are only using the ethanol as a fuel, the small amount of copper won't do much to the engine. The only reason to re-distill it is that it keeps the copper from contaminating our clay molecular sieves we use to to take the ethanol to 98%. Our last part of our process is also to denature the ethanol which will also make it toxic to consume.
@@AgTeacherThoughts that may be a result of too much yeast nutrient. It tends to push the mash pH down. A low pH and you can get copper acetate (also from a bacterial infection causing acetate production) or copper sulfate. A high pH can make stuff too I think.
Either way will give you that blue slue
Yup, we checked the pH on our current run to make sure that doesn't happen again. Right now we are doing a wheat fermentation. It's looking pretty good. We'll know soon how it goes.