Cold crashing and killing a fermentation questions
I a 2.5 gallon have a cyser I fermented with D-47 that started with a gravity of 1.100 and is at 1.018. So, it should have 11% alcohol and a bit on the sweet side. I want to stop the fermentation here. So, I threw it in the fridge. My questions are:
* How cold should I get it and for how long before adding the sorbate and sulfite.
* The guy at the homebrew store said 1/4 teas K Sorbate for 5 gallons, so is 1/16 t per gallon about right?
* How much K Metabisulfite should I use? I'm thinking 1/2 t per gallon.