YeastHerder
Well-Known Member
I went to the local pharmacy and got this. The label says it is 2% Iodine. Here is what I saw:
water + corn starch: ++++++ (+'s indicating the amount of blue perceived)
water only: -
mash @ 5 minutes: ++++
mash @ 60 minutes: +
I was surprised to see a decent amount of color even after an hour mashing at 152F. The recipe I was mashing contained about 70% pale 2 row, 30% crystal malts. Is it typical to see that residual starch? Is that the unfermentables from the crystal malts?
I also tested my iodine on a paper towel and it instantly turned black as night, unlike I've seen in some posts. Is my % Iodine too high? I'm basically using 1 drop Iodine solution to 1 drop of mash on a ceramic plate (because the paper towel by itself was turning black).
water + corn starch: ++++++ (+'s indicating the amount of blue perceived)
water only: -
mash @ 5 minutes: ++++
mash @ 60 minutes: +
I was surprised to see a decent amount of color even after an hour mashing at 152F. The recipe I was mashing contained about 70% pale 2 row, 30% crystal malts. Is it typical to see that residual starch? Is that the unfermentables from the crystal malts?
I also tested my iodine on a paper towel and it instantly turned black as night, unlike I've seen in some posts. Is my % Iodine too high? I'm basically using 1 drop Iodine solution to 1 drop of mash on a ceramic plate (because the paper towel by itself was turning black).