I've been trying out fermenting things for a few months now, mostly making sauerkraut. That's supposed to be beginner level, perfectly suited for me
Unfortunately, more than half of my ferments start accumulating mold after about a week (it's not Kahm yeast - it's always black). I know that some people say to just scrape it off, but I don't want to do that, since I have some health issues.
So, I've been changing some things in order to try and avoid the mold:
- making sure the vegetables are completely submerged. At first I thought that my failure to achieve this was the reason for the mold growth.
- adding the right amount of salt (2.5 wt% for my sauerkraut)
- letting a little indirect sunlight shine on the top of the jar, in attempt to stop the mold growth
- cleaning the jars thoroughly (don't really see the point in sterilizing, there's bound to be some mold spores in the cabbage itself right?)
See below for some pictures of my last attempt. This was bell pepper and some lettuce with a salt concentration of 4 wt%. Nothing came above the brine whatsoever.
Does anyone have any suggestions as to what could be causing the mold growth? Any suggestions are appreciated!