Sauerkraut, again

I had to ditch the sauerkraut. It started getting moldy, so I took it to the compost pile. I found out that you have to have firm seal on top of it so it doesn't have any contact with the air. I made a new batch today (with an appropriate amount of salt--3% of the total weight), and got a better seal on it--saran wrap over the top, then a gallon ziploc bag full of water, then another layer of saran wrap. That should keep those pesky spores out.