Here I share what I learn, jar by jar — the methods, the mistakes and what science is only just beginning to explain.

Fermented vegetables are not just raw vegetables. Start with a spoonful: the right amount makes their intensity a pleasure rather than a shock.

We buy fermented vegetables with the best intentions and then forget them. The answer is not willpower, but a simple everyday ritual.

Found an old jar at the back of the cupboard? A practical guide to dates, opening, storage and the signs worth checking.

Forget garlic’s heat. Imagine a soft, ebony-coloured sweet with deep fruit notes, made while nature quietly does the work.

Neither soya sauce nor miso: an unfiltered, powerful and living Fermentierra creation with a texture between sauce and paste.

A hissing jar or raised lid shows that microorganisms may still be active. Here is how to understand this natural phenomenon.

One or two per cent is a useful guide, but good fermentation also relies on ingredients, technique and sensory judgement.

A spoonful or two each day is an easy way to make fermented vegetables part of everyday meals.

Simple ideas for bringing lacto-fermented vegetables into everyday meals without changing the whole way you cook.