by Hill » Wed Apr 24, 2013 4:36 pm
Did you take any gravity readings?? if you will get more fermentables out will depend on what gravity you got in the first place, lets forget for a sec the fact I think you have lost a lot/ majority of fermentables by boiling/simmering (same thing) first, you should be using a water to grain ratio of about 3 : 1 grain to water, conversion should take anywhere from 1 to 2 hours and I'm guessing you will get a gravity of about 1070 max, now sparging can give you more volume but might just bring your gravity down to 1065 or 1060 depending on the all the numbers. Crushing the corn/grain more can give you a little more fermentables (0005 OG) but is more likely to give you a stuck mash, I would start by getting your mashing down and listing the water amount put in and also take some gravity readings then you can work out where to go from there.
let me If any of that doesn't make sense I can elaborate.