Fermented hot sauce — chilli peppers fermented with salt, then blended with vinegar — represents the intersection of lacto-fermentation and acid preservation. The fermentation precedes the acid preservation: the Lactobacillus establishes a lactic acid environment that both develops flavour complexity in the pepper and primes it for the subsequent vinegar addition. Tabasco sauce is the archetype — the mash ferments for 3 years before vinegar is added; the result is categorically different from a fresh blended hot sauce.
- **The mash:** Fresh chilli peppers + salt (2–4%) — blended to a rough paste and fermented anaerobically. The cap of brine that rises to the surface is maintained; any contaminating mold on the surface is removed. - **The fermentation time:** Days (fresh, simple fermented hot sauce) to years (Tabasco-style complexity). Each month of fermentation adds depth. - **The vinegar addition:** After fermentation, vinegar is added and the mash is strained. The vinegar acts as the final acid preservative; the lactic fermentation has already done the flavour development work. - **The resulting flavour:** The lactic acid from fermentation + the acetic acid from the vinegar + the capsaicin compounds + the fermentation byproducts (esters, alcohols, new aromatic compounds) produce a complexity that fresh-blended hot sauce cannot match.
Noma Fermentation