At scoby&friends, we have been using Kefirko jars long before we even imagined creating a business out of our passion for probiotic foods. We somehow found the Slovenian company while looking for practical vessels to brew our milk kefir in. We have not been without those jars ever since: once you own one, you realize you can pretty much use them for everything: brewing kombucha, fermenting water kefir and milk kefir, sprout grains, make overnight oats, ferment mesophilic yoghurts, make cheese and yoghurt (with the cheesemaker jar), brew tea and nut milk (with the cheesemaker jar) and my very own favorite: ferment the sourdough! The wide jar opening makes it ideal to access and feed the sourdough. The opening also makes the cleaning much easier, as it is recommended to hand wash them, even though they can be machine washed on a cold temperature program. The two horizontal lines on the jar help to visually evaluate how much the sourdough has been raising. Combined with the second fermentation lid, the jar offers the best anaerobic environment for our sourdoughs to “get sour” without any bugs reaching in. We also love that the jars are wider in diameter than usual screw top jars, as we find it impacts the reactivity and homogeneity of the fermented sourdough.
Here are pictures of our dear Fergusson Sourdough fermenting in a 848ml Kefirko jar, just after feeding, at 3 hours and 4 hours after feeding (and of course, your can find the jars and the sourdough starter in our webshop, just click on the links 😉 )