Why Your Kimchi Isn't Fermenting (It's Probably Not Ruined)
Your kimchi isn't fermenting, or so it looks. No hiss, no bubbles, nothing, three days after you packed the jar. A silent lid is almost never the actual problem. It's usually just the wrong thing to be watching. Three things genuinely control whether a batch ferments: how much salt is in it, how warm the room is, and how you're reading the jar. Get those three right and the fizz shows up on its own schedule, not yours. No Bubbles Doesn't Mean Nothing's Happening A plain screw-top jar and a fermentation crock with an airlock don't behave the same way, and that difference alone explains most of the panic. Brine & Bubble puts it plainly: "In a sealed jar like a mason jar with a standard lid, gas builds up between the lid and the brine and simply seeps out without any visible activity at the surface." An airlock forces that same gas through water, so you see it. A regular lid just lets it go quietly. Early fermentation is also weaker than people ...