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Ok, so I tried this. I used aOk, so I tried this. I used a cookie jar instead. It may be porcelain instead of ceramic. (I'm not sure it just says made in china). I didn't use the cloth and plate with a jar on top to weight it down. I simply turned the lid (which has a bit of a dome on top) upside down. The cuc's have been in there for almost a week now and there is no scum developing. :( I followed the rest of the directions exactly. Do you think it's because of the jar or is it because I didn't use the cloth, plate, and jar of water on top? O..also it's just been at room temperature on the counter.

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