nutrients

Hi guys, So Im making my own yeast nutrients. Someone suggested I add some yeast to a pot of boiling water for 15min to kill it, then dry it and add it into my DAP for yeast nutrients. I wanted to know, do I have to use Distillers yeast then kill it/active yeast. Or can I use the far cheaper...

Title is the question. Bought a 1/2 gal of local apple juice poured a glass and kinda forgot about it in the back of my fridge. About a week or so later I noticed the jug was getting "puffy." I poured a small glass and it tasted great. I decided to use it as a starter for a wild ferment of...

Does yeast need potassium during growth, or during anaerobic fermentation, or both? Or worse, do they want it as soon as possible when pitched? I ask because the popular BOMM mead recipe suggests adding potassium carbonate at pitch to provide potassium and buffering, and I'm thinking about...

For this batch I used Fermaid K in my beer. I added it 15 min prior to the end of the boil. I haven’t read about anyone doing this so I wanted to know if its at all beneficial or it could of messed something up?

I have made one mead so far, JAOM. In an effort to unlearn the things I assumed to be true when making this mead I am now looking to do a traditional in order to learner the proper techniques of mead-making. I have a bag of Yeast Energizer from my LHBS, I use it sparingly in my beer brewing...

Peptone is one of the major organic nitrogen sources used in microbiology, and it's easy to buy or manufacture yourself by using an enzyme to digest protein (soy protein isolate or casein isolate with no lactose). It's not so easy to get Fermaid O in my country, and it looks like it just...