Originally Posted by ski36t
Thanks, I'll give that a try.
I had heard to mash longer so I did it for 90 mins. Would it have helped any to go longer than this?
Well without doing an Iodine conversion test, you really won't know for sure. If you haven't done this, pick up a bottle (CVS, Walgreens, Rite Aid, etc should indeed have them) for about $3, it will last a very long time. I always Vorlauf before testing to make sure I am getting a good representation of the wort, place a Tbs full of wort onto a white plate and then a few drops of Iodine to it. If there are unconverted starches they'll turn black...but it actually tells you more than that if
you know what to look for.
If you see:
Immediate black then you are pretty much unconverted.
Brown and then turns black in a few seconds then you are probably 1/4 of the way
Brown and then slowy turns slightly darker then you are probably 2/3 there
Brown and then really really slowly turns dark (but not black or maybe like tiny black specs) then you are almost there (give it 10 minutes and test again)
Brown and really really really slowly turns a 'buff' color there is a small amount of starch which will most likely convert by the time you get to a boil
Brown and no color change = done