I use glass jars, anything from a quart to a gallon. It comes out great. I ferment most stuff on the counter at room temp (70's) for about three days then store it in the basement fridge for weeks/months. 'Kraut gets better...as do many ferments....after a few months of aging. The glass jars spend most of their time out of the light, so it hasn't been a problem. They can always have a paper bag put over them during the process if needed, I suppose.
I made my first fermented dill pickles last year and was unimpressed, so they went into the back of the fridge for a few months, forgotten. When I found them, they were A-M-A-Z-I-N-G. That was one quart. This year I am up to...um...about 4+ gallons so far. My four cuke plants are still producing.