I want to make a 3 gallon batch. I assume it is OK to use my regular-size primary for this? Any reason not to?
No reason at all. I've done it a few times with small batches and they all came out just dandy.
Just do a long primary if you don't have a 3-gallon secondary. The CO2 layer in the primary will protect your beer, but if you put it in a big secondary you could get oxidation.
"Science + beer = good!"
Just leave the lid open everything will be fine.
That's what Rex told me to do. Think I'm going to start a new batch tomorrow- want to ferment in the basement between 64-68. Should I start fermentation at 72 ish.
Getting mixed answers I'll post something. See you got a Scottish Ale on deck, that's what Dad wants you to make for him.