I've been trying to brew the Witbier kit recipe from morebeet.com.
The recipe has lots of oat and malt, which absorb large quantity of the water. Out of the 5gal batch I was able to squeeze only 2.5gal with a grain mesh bag.
In my first brew, I tried fermenting that, but got gelatinous mash. In my second attempt I added 2 gal, but I think that reduced gravity much.
Is there a trick I'm missing for brewing these types of beer?