Germelli1
Well-Known Member
I have read many times that you can use sanitized foil to make a seal or airlock for a a flask or mason jar in which you are harvesting yeast from a commercial brew.
I was just wondering how you want to arrange the foil? Do you want to get it as airtight as possible and assume that air will get out of it anyway?
I am just confused on how to actually use the foil
I was just wondering how you want to arrange the foil? Do you want to get it as airtight as possible and assume that air will get out of it anyway?
I am just confused on how to actually use the foil