I have my first lager fermenting at 50 degrees (pitched Saturday 8/18 at 11pm, tonight will be pitch + 5 days). Airlock activity started Monday AM, been going consistently since.
The problem I am seeing is, I am heading out of town one week from today for 10 days (which will be pitching + 12 days). I have two choices: raise it up to diacetyle rest temp prior to leaving, or leave it in the primary at 50 degrees until pitching + 22 days. I feel like the former will not facilitate an actual diacetyl rest as the yeast will have gone dormant.
I know ideally, it should be done for a few days when you have reached 75% or so of your target gravity (maybe 50-60% attenuation).
My question is, which side of error will produce a cleaner lager?