Normally when I do BIAB, I remove and squeeze the bag and place it in a steel crate which sits on the brew kettle. I then pour 170-degree water over the bag until I reach about 6 gallons for pre-boil volume. 3 batches ago I had two straight batches that stopped at 1.020. I mash around 152. No extra non-fermentables in there. Should I be pouring 200-degree water on the bag or stick with 170? I don't want tannins, but I'd like a more fermentable wort. The grains were double crushed in all instances and I use PH stabilizer which usually helps with my efficiency as well. I just want to know what temp water you use to pour over the grains if that is part of your BIAB process. Thanks. My most recent batch had pretty bad efficiency as I only got 1.044 OG (recipe called for 1.055), but it did ferment down to 1.012 at least.