The rumblings seem to have subsided...
Just found some proper sauerkraut at the local supermarket, that went through proper lacto-fermentation. Only €3.80 for a big pot that will last for ages. Beats doing everything myself.
Will be doing our first batch of Bacillus coagulans later, at about 46°C for 36 hours. Can't do it now or it'll end at 4am.
My wife is finding my pre/probiotic salads really tasty, which is an extra benefit. They're lettuce, mozzarella, almonds, walnuts, sauerkraut (was chopped up pickles), sardines or eggs, organic tomatoes when I can find any, sea salt, apple cider vinegar and olive oil.
Top tip: the stevia, blueberries, plus a dash of inulin really help take away the extremely tart flavour of the L. reuteri yogurt.