Is the recipe. It didn't occur to me 'til just now to wonder - do you have to minimize surface area/contact with air? I don't have a big enough jar to ferment the stuff (I'm planning on getting a couple of half-gallon size mason jars but I don't have them yet). The picture on the site shows the kimchi in a baking dish - I was planning on using a Pyrex covered casserole dish.
Is that going to be ok, or do you HAVE to do this in a jar to minimize surface area?