Originally Posted by smokinghole
The pellicle will only form in the presence of enough oxygen.
I've read that in several places, but I'm not sure I agree. I have some in glass fermenters with airlocks which only have a small air space, and they have pellicles. They should not have any oxygen in the airspace, so I'm a little confused about it.
Originally Posted by ericksoncl23
So what's better. Leaving it on the yeast cake for the whole time or doing a transfer?
I want to make a Blackberry Lambic. But I would prefer to use LME. Should I just do 5# Light Liquid and 3.3# Wheat liquid extract?
The Brett feeds on the decaying sacc yeast. That's why you leave it on the cake. I usually ferment with just Sacc until the beer starts to clear and form sediment, then I rack it off (with a lot of yeast still in suspension) and then add the bugs to it. This gets it off the trub, but still leaves a lot of yeast for the Brett to work on. Then it stays there for a year.
Extract is fine. Use the lightest you can find. Go 100% wheat if you want (Wheat extract is usually 50/50 wheat/Barley). 8 ozs of maltodextrin would also help, adding non-fermentables for the bugs.