I have been brewing in a bag for 18 months on electric stove tops.
I was using anova pro stick which gave up after one 70C run
anyway the temp control with huge pot on 4 heating elements is not precise.
it often overshoots and I chuck in ice cubes to rescue.
question is: if recipe says 40 min 68.5, 20 mins 72c and 10 min 75c.
If I hit 75c and ice it back to 72C will it Have killed off the enzymes that work at 72c or indeed 68C?
I was using anova pro stick which gave up after one 70C run
anyway the temp control with huge pot on 4 heating elements is not precise.
it often overshoots and I chuck in ice cubes to rescue.
question is: if recipe says 40 min 68.5, 20 mins 72c and 10 min 75c.
If I hit 75c and ice it back to 72C will it Have killed off the enzymes that work at 72c or indeed 68C?