I have another question about making fermented dill pickles again. Sorry if my questions make your eyes roll.

After you put the bag of brine on top to weigh down the cukes, it it ok to put the glass lid of the crock pot on to keep dust, etc. out? Or is air necessary in the fermentation process?

I'm asking because of the tread where covering the crock with Saran lightly seemed to be insufficient, and I'm wondering if one could use an actual crock pot as the vessel.

http://forums.gardenweb.com/forums/load/harvest/msg0801433817218.html