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Sauces and condiments from Worcester, England
Anchovies, tamarind, shallots, garlic and onions are soaked in vinegar for a year or more, the flavoured liquid is pressed out cold, and it is blended with molasses, sugar, salt and spices. The blend is matured for months in wooden casks, then briefly heated and bottled as a thin, tart, brown sauce. Made in 5 steps over 12 months – 2 years. The longest step, steep anchovies, tamarind and alliums in vinegar, takes 12 months – 2 years (Shurtleff W. and Aoyagi A. 2012). Salt is 2.3–3.8 % (US Department of Agriculture 2015).
| Main step | 12 months – 2 yearsReported[shurtleff2012] | Steep anchovies, tamarind and alliums in vinegar |
|---|---|---|
| Salt | 2.3–3.8 %Set[cid] | Blend with molasses, sugar, salt and spices |
| Acidity | pH 3–3.9Set[cid] | Heat briefly and bottle |
| Malt vinegar (from barley) and spirit vinegar · First ingredients on the Lea & Perrins label[kraftheinz][cid] | |
| Water[kraftheinz][cid] | |
| Refiners' molasses and sugar[kraftheinz][cid] | |
| 2.32–3.75 % of the finished sauce | Salt · USDA purchase specification for regular sauce[cid] |
| Anchovies · Optional in the USDA specification; vegetarian versions leave them out[kraftheinz][cid] | |
| Tamarind extract[kraftheinz][cid] | |
| Onions, garlic, spice and flavourings[kraftheinz][cid] | |
| Starter | none (no added culture) |
Total time across the recorded steps: 12 months – 2 years
What changes: Anchovies, tamarind and alliums soak in vinegar and give up their flavour
Output: soaked anchovies, tamarind, shallots, garlic and onions in vinegar.
Microbes at work in this step
The acid vinegar softens and extracts the ingredients; no study names microbes at work.
Measured measured in a studySet fixed by a specification or tested recipeReported one source reports itTypical a general value, not sourced for this fermentUnconfirmed not yet checked against a source
Worcestershire sauce is a long vinegar steep, not a brine ferment like fish sauce. The anchovies are soaked in vinegar rather than salted alone, and the USDA specification requires the finished sauce to be free from fermentation. No study has named microbes that drive it.
The USDA specification sets pH 3.0–3.9, well below 4.6, the line US rules draw between acid and low-acid foods, so the sauce keeps on the shelf. It contains fish (anchovies) and usually barley malt vinegar, which matter for allergies.
Every number is labelled with how it is known. How this atlas is made
John Wheeley Lea and William Henry Perrins, chemists in Broad Street, Worcester, began making the sauce in 1837 'from the recipe of a nobleman in the county', and the earliest known advertisement dates from 1840. Production moved to a new factory on Midland Road in 1896. Soy sauce was a key ingredient until World War II, when hydrolysed vegetable protein replaced it.
