Is 50-52 too cold for aging with Brett/lactic cultures?
 

Right now my cellar is around 50-52 degrees F, and I am aging some stuff with brett and lactic cultures on oak. Just wondering if this is too cold, or what effect it will have?

It is too cold, and the process will be very slow.

Brett is slow at 70, so at 50 you'll need to let it sit for 2-3 years;). I would either move it somewhere warmer or place it in a tub of water with an aquarium heater

I was planning on letting it age for at least one year. The cellar should get up to around 70-75 by the middle of summer, so I may just let it stay where it is.

As long as the bret is still there and isn't dead or dormant, I should be ok, no?

As long as you're prepared for the wait, you're ok

70 Is just right for a lambic that has already been fermenting a couple of months.