Question about my kimchi brine levels

I used to pack my kimchi jars so full that brine would spill out after a day, but after reading a book from the library I leave an inch of space at the top. The change happened about two months ago and my ferments are way less messy now. How much headroom do you guys usually leave in your jars?

2 comments

2 Comments

nancy1541mo ago

Honestly, that inch rule is solid. I read a blog post from a guy who ferments professionally, and he said headspace is non-negotiable for safety and to avoid a mess. He stressed that the veggies need room to bubble and expand without pushing brine into the lid. I never burp my jars anymore, I just use those cheap plastic airlocks. They let gas out without letting air in, so you don't even have to think about it. Total game changer for keeping my countertops clean.

kevin_sullivan1mo ago

That inch of space is the sweet spot for sure. I leave about the same, maybe a little more if I know it's a really active ferment. Had a batch of sauerkraut geyser all over my fridge once, learned that lesson the hard way. Does the book say anything about burping the jars, or do you use airlocks?