G'day guys,
I had a bumper cabbage crop last spring and as we don't use much cabbage I decided to turn a bunch of it into sauerkraut for an upcoming German themed party. I never bothered with a culture as I believe there is enough occurring naturally on the cabbages and in the air (I also like sourdough bread!).
I believe you'll find due to Australian food standards, all the store bough jars/cans have been heat sterilized (which coks the kraut making it lose crunch and texture) or irradiated - This essentially kills all the biota in the food so you don't actually get any of the purported pro-biotic health benefits from commercial saurkraut. I do use it when I run out of my own, but the best way to have killer kraut and all the benefits is to make your own.
So, my method was;
take as many cabbages as you want (I had about 7 good sized round cabbages from the veggie patch spare), peel off the ****** leaves cut out the stalk and most of the core, rinse and slice them (as thick or thin as you like.. mine range between 2 - 6mm). You can use a mandolin but I just used a knife. As I had sliced each cabbage I put it into a large bowl and pounded it with a mortar (but any kind of knock-o-meter works) for a few minutes, this bruises the cabbage and helps it to start releasing some of it's natural juice. I sprinkled about 2-3 taplespoons of table salt over each time (which will also draw out more liquid) and a quick grind of black pepper. Every few cabbages I also sliced and added a leek from the garden. When all my cabbages and leeks were done I let the mixture sit over night covered with a tea towel.
One thing that freaked me out about the traditional method was where they often mentioned 'scraping the slime/crap/scum off the top of the kraut every few days. Now I don't have a traditional crockery krauting vessel but I did have a spare 25L black plastic fermenter which I thought was actually better. So I took my mixture of cabbage/leek/salt from the day before and poured it into my fermenter, I added a dried clove for every cabbage and a few diced garlic cloves and gave it a quick mix. Now, the cabbage should have produced a fair amount of it's own liquid but you'll probably have to top up with a little bit of water just to make it easier to actually submerge everything. At this point, I top the fermenter up with couple litres of water (with an extra tablespoon or salt), I give this a really good mix and then push all the cabbage down and to pack it in and submerge it.
I was a bit worried about the traditional methods continually mentioning 'scraping the scum off the top of the kraut every few days', so I filled a plastic food safe bag wth water and salt, tied a knot in it and used this to keep my cabbage submerged. The added benefit is if you use an appropriate sized bag when it sits on the surface it will form a perfect air tight seal, only releasing fermentation gases. No scum, no scraping, and if the bag bursts it's just extra brine. I still put the lid on the fermenter and whacked on the airlock just to be super sure.
4 weeks later with fairly minimal smell (I wouldn't put it in SWMBO's en suite though), we had kilo's and kilo's or killer kraut. We consumed vast quantities with beer and bratwurst (try grating an apple with your saurkraut and then grilling quickly with your brats), jarred the rest and put it in the fridge (again, just being cautious). I just found a jar the other day (6 months later) in the fridge and it was still crunchy and tastey.
So, I'm about to sow cabbage seeds in the veg patch again for this seasons krauting
Cheers,
Al