3,500 years of fermentation

Long before the fridge, before the stove even, humans were fermenting. A short history of a very old idea.

Older than cooking, almost

Fermentation is ancient. Traces of fermented drinks go back thousands of years across China, the Caucasus and the Middle East, and the practice almost certainly began even earlier than the evidence we can find. It started as preservation, a way to keep food edible through winter in a world with no refrigeration.

Every culture has one

Look around the world and nearly every food tradition has its ferment. Kimchi in Korea, sauerkraut across Central Europe, miso and natto in Japan, kefir in the Caucasus, injera in Ethiopia, tempeh in Indonesia. The same principle, salt or microbes plus time, reinvented in a thousand local ways.

Why it stuck

Fermentation solved several problems at once. It made food last, made it safer as acids and salt kept harmful microbes out, made it more nourishing and easier to digest, and very often made it taste better. That is a remarkable set of wins for a technique that needs no electricity at all.

The forgetting, and the return

In much of the West, industrial food, pasteurisation and the household fridge made fermentation optional, and it quietly slipped out of home kitchens for a few generations. It is coming back now, partly for the flavour, and partly because we have relearned what live cultures do for the gut.

When you open a jar of kimchi, you are doing something humans have done for millennia. Not a trend so much as a homecoming.