Ok I'm ready to get more into water chemistry. What salts do y'all keep on hand? Should I just buy several of them and keep them around to build the profile I want from RO water?
Speaking of which, looking at fridges now. Plan to buy used and retrofit controller to it.Chipotlemonger said:
Yes, I plan to control the fermentation temps.
That's the problem with most smaller fridges.For mine, I had to double up the bottom shelf to support weight of carboy, and it's just big enough inside to have carboy plus blow off tube. Your typical dorm size fridge will not be big enough. Like I said mine is like a 12-15cuft model:Chipotlemonger said:
Currently I have a small fridge, but it has one of those floating freezer sections inside and the big stair in the middle of it to go around the compressor/equipment underneath it.
I do plan on having separate fridges for fermentation and kegs. Think I'll keep the mini fridge as just that.
I do 60 mins (minimum) for that step. Sometimes 90 if it's a big grain bill. This is the "conversion", and it should be the bulk of the mash step. Certainly longer than 30 minutes. Buy some tincture of iodine and check for starch conversion at the end of this step.Seven said:
I need to check my hygrometer. I order my grains crushed from whoever I buy it from, usually Austin's home brew, sometimes Northern brewer or Defalcos. I calculate it using brewers friend, they take the grain bill and then based on volume and gravity will calculate how much of the available sugar you get out. I don't think it's channeling, it's a rectangle cooler. Process is
Preheat while mash water is getting to temp.
Drain water, fill with grain, add mash water, stir thoroughly
Let sit 15-20 minutes and stir x2
Recirculate at 5-10 minutes left to get grain out, stir and circulate one more time
Drain as much as possible
Add first sparge, stir, let sit 10 minutes
Drain as much as possible
Add second sparge, don't stir, let sit 10 minutes and drain drain drain. Will tip cooler over as much as possible to move grain around and prevent channeling and keep draining and holding it at an angle until there is basically no water left coming out. Then go on with boil as usual.
My total water ending up in fermenter is right at 5.25-5.3 gallons which gives me almost exactly 5 gallons of finished product. So I think as far as that goes that is right. Mash at 1.33qt/pound of grain. Temps look good
sg is linear.Seven said:
How do you determine what your preboil gravity should be?.