So I just did my first all grain batch yesterday using the biab method. I had a quite messy brew day (pot was too small, my hydrometer broke when i tried to take a gravity reading) but my biggest problem was inconsistent temperature. I was mashing with the lid in an aluminum pot. i had quite a bit of loss of temp, it went down to 140 for a short amount of time, and when i either put the heat on very very low for a minute or two or added a quart of pretty hot water (tried both) it shot up to over 160. I tried to keep it as consistent as possible, how can i fix this problem in the future?
it is the drink of men who think
and feel no fear nor fetter
who do not drink to senseless sink
but drink to think the better