PostModern
Iron Wolf Brewery
- Joined
- 9/12/02
- Messages
- 5,293
- Reaction score
- 8
In partial answer to my question, I just read the abstract for a paper that tested a whole range of variables, pH, Ca concentration, temperature, wort gravity, etc on the isomerisation of alpha acids and found that at 70C, less than 10% of AA's had isomerised over 90 mins, as opposed to 90% in 30 mins at 100C. HTH