Homemade Worcestershire Sauce: Ready Tonight or Fridge-Aged

What is Worcestershire sauce made of?

Worcestershire sauce is a thin, dark, vinegar-based seasoning, sour first, then sweet, salty and savoury, with a background of clove, chile, garlic and onion. Kraft Heinz lists the US Lea & Perrins ingredients, in this order: “distilled white vinegar, molasses, sugar, water, salt, anchovies, onions, garlic, cloves, natural flavorings, tamarind extract, chili pepper extract.” The UK bottle is different: “Malt Vinegar (from Barley), Spirit Vinegar, Molasses, Sugar, Salt, Anchovies (Fish), Tamarind Extract, Onions, Garlic, Spices, Flavourings.” Same brand, two vinegars, and that one swap is the reason the American bottle has no gluten ingredient and the British one declares barley.

It helps to think of it as four parts. Vinegar is the base and the preservative. Molasses and sugar bring sweetness and colour. Anchovy and salt bring the savoury depth (umami) and the salt. Tamarind adds a fruity sourness, and the spices and alliums sit on top. Every homemade recipe, including this one, is a version of that balance.

How it is made commercially is less secret than the recipe. A 2020 Birmingham Live explainer on the Worcester factory describes onions and garlic packed into barrels of malt vinegar and anchovies packed in salt; once matured they are blended, matured again in large vats, and then “the concentrated sauce is diluted and sterilised, ready for bottling”. Lea & Perrins says its sauce matures for 18 months; a 1993 Los Angeles Times report from the factory put it at three years. A home kitchen cannot reproduce either, so a home recipe simmers to speed up extraction and steeps for weeks instead of months. Like the factory’s, a homemade batch is a concentrate. Unlike the factory, we do not dilute it, because diluting would weaken the acid that keeps it safe, so you simply use a little less.

The salt arithmetic: why our recipe weighs it

The most-copied homemade recipe, published by Saveur in 2009 and adapted by Serious Eats in 2011, uses 3 tbsp of kosher salt and 1/2 cup (120 ml) of soy sauce for a yield of about 2 cups (480 ml). Kosher salt brands differ hugely by volume: a quarter teaspoon of Diamond Crystal weighs about 0.7 g and holds about 280 mg of sodium, while a quarter teaspoon of Morton coarse kosher salt weighs about 1.2 g and holds about 480 mg (CSPI, from the brands’ labels). With Diamond Crystal, that batch carries about 10,080 mg of sodium from the salt plus 7,360 mg from the soy sauce (8 tbsp at 920 mg each, the Kikkoman label) plus about 440 mg from the three anchovy fillets in the Serious Eats version (Saveur used one), about 17,900 mg in all, or about 186 mg per teaspoon. With Morton it is about 25,100 mg, or 261 mg per teaspoon. The US bottle of Lea & Perrins has 65 mg per teaspoon, so the popular recipe is three to four times saltier than the sauce it imitates, depending on a brand it never names.

Our batch keeps the 1/2 cup (120 ml) of soy sauce, for depth, and cuts the added salt to 4 g. The arithmetic: soy sauce 7,360 mg, salt 4 g at 39.3% sodium is 1,572 mg, anchovies about 440 mg (12 g at roughly 3,670 mg per 100 g), molasses about 63 mg (170 g at 37 mg per 100 g), tamarind and vinegar about 27 mg. That is about 9,460 mg across 2 cups (480 ml), which is 96 teaspoons, or about 99 mg of sodium per teaspoon and about 296 mg per tablespoon. Yields vary with how long the pot simmers and how hard you press. Our 2-cup figure is the conservative end: most batches come out a little larger, and closer to 2 1/2 cups (600 ml) it falls to about 79 mg per teaspoon. If yours reduces more than ours, it will be saltier per teaspoon. These are our figures, not a lab test.

That still leaves our sauce about one and a half times as salty as the US bottle, and on purpose. It is also sweeter (about 2.5 g of sugars per teaspoon against the bottle’s 1 g) and more intensely spiced, because it is a concentrate. One rule covers all of it: use about two thirds of what a recipe asks for, then taste. For reference, the UK bottle lists 2.9 g of salt per 100 ml, which works out at about 58 mg of sodium per teaspoon, so British and American Lea & Perrins are nearly the same; the claim you will see that the American one has three times the sodium is not supported by current labels.

Calories, for completeness: molasses about 493 kcal (170 g at 290 kcal per 100 g), sugar 387 kcal (100 g), soy sauce about 80 kcal (8 tbsp at 10 kcal), tamarind about 50 kcal, anchovies about 25 kcal and vinegar about 86 kcal, roughly 1,120 kcal across 32 tablespoons, or about 35 kcal per tablespoon. The strained-out onion, spices and aromatics are not counted, since they are discarded.

Is homemade Worcestershire safe to age? Why we steep it in the fridge

Ranking recipes disagree wildly on this. One popular page boils the ingredients for a moment, blends in raw onion, garlic and ginger, and ages the jar in a cupboard for one to three months, calling the result shelf-stable for a year. Another ages its sauce for 3 weeks in the fridge and then keeps it for 8 months. A third says a month. None of them gives a pH or a tested process, and that is the missing piece.

Here is what is actually known. Commercial Worcestershire is acidic: the FDA’s table of food pH values lists it at 3.63 to 4.00, and the USDA specification that government buyers use sets pH 3.0 to 3.9, 2.60 to 3.75% acidity as acetic acid, and a sauce “free from fermentation”. Below pH 4.6, the bacterium that causes botulism cannot grow and make toxin. A factory controls and measures that. At home you would need a pH meter or test strips to know, and Utah State University Extension, writing about home fermentation, says foods cannot be guaranteed safe unless the pH is verified that way.

The risk sits in the solids. Onion, garlic, ginger and anchovy are low-acid foods, and guidance for small sauce makers from the University of Wisconsin and Nebraska explains that in a sauce mixing acid and low-acid ingredients, big pieces can take as long as 10 days to reach the acidity of the liquid, and that such products may need refrigerating during that time to prevent the growth of Clostridium botulinum. Our recipe is vinegar-led and, by our arithmetic, a little under 3% acetic acid once the caramel is in, within the commercial range, so the finished liquid is very likely acidic enough, though acid strength is not the same as pH and the soy sauce buffers some of it. But “very likely” is not a tested process, and the fridge costs nothing. So the steep happens in the fridge, the strained sauce stays in the fridge and is used within 3 months (an outer limit we borrow from the University of Maine Extension’s guidance for refrigerated vinegars flavoured with garlic; no one has tested homemade Worcestershire), and anything longer goes in the freezer.

The 3% figure assumes you do not dilute. Two cups (480 ml) of 5% vinegar carry about 24 g of acetic acid; in the roughly 780 ml (3 1/4 cups) of liquid in the pot before the caramel, that is about 3.1%. Add a cup (240 ml) of water, beer or juice and it drops to about 2.4%, below the commercial range, which is one more reason this recipe adds none.

Choosing the tamarind, the vinegar and the molasses

Tamarind is sold as two quite different products, and recipes that just say “tamarind concentrate” leave you to guess. The jars most supermarkets stock, Thai or Indonesian brands labelled concentrate or paste, are tamarind pulp thinned with water: thin, brown, and about 5 to 15 kcal per tablespoon on the label, as America’s Test Kitchen points out. Indian concentrate (Tamicon is the familiar brand) is thick, nearly black and about 40 to 50 kcal per tablespoon, roughly three times as strong. Our 1/4 cup (60 ml) is for the Thai-style jar. With Indian concentrate use 4 tsp, a third as much, or the sauce turns sharply sour. From a block, soak 1 oz (28 g) of pulp in 1/4 cup (60 ml) of boiling water for 10 minutes and push it through a sieve, which gives about 1/4 cup (60 ml) of paste, the same strength as the jar.

For the vinegar, any 5% vinegar keeps the acid where it needs to be. Distilled white is what the US bottle uses, and it is gluten-free. Cider vinegar is also gluten-free and a little fruitier. Malt vinegar is what makes the UK bottle taste British, a rounder, bready sourness, but it is brewed from barley and not distilled, so in the US the FDA does not allow it in foods labelled gluten-free; in the UK some malt vinegars (Sarson’s, for one) are certified gluten-free by Coeliac UK while still declaring barley, so check the label. Avoid seasoned rice vinegar (weaker and sugared) and homemade vinegar, whose strength you cannot know.

For the molasses, use regular unsulphured molasses. Blackstrap is a different product, about 45% sugar to regular molasses’ 70%, bitter and salty, and Stella Parks of Serious Eats warns it should never stand in for molasses unless a recipe names it. In the UK and Europe, black treacle swaps in 1:1; it is a blend of molasses and refiner’s syrup, slightly sweeter and rounder.

If it goes wrong

Too salty: salt cannot be taken out. Use smaller amounts in cooking, or stretch the batch with more 5% vinegar and a little molasses, simmered together and stirred in, knowing that this dilutes everything else too. Never thin it with water, which weakens the acid. Next time, weigh the salt, and check whether your tamarind paste or soy sauce is a saltier brand.

Bitter or acrid: the caramel went past deep amber, or blackstrap molasses was used. Burnt sugar cannot be strained out. If the caramel smoked before it went in, the batch will taste of it, which is why it is worth starting the caramel again rather than adding a scorched one.

A hard lump of caramel at the bottom of the pot: the caramel met cooler liquid and set. It is harmless. Keep the sauce over low heat and whisk until it melts, which can take several minutes.

Too thin or too weak: it is meant to be thin, so first compare it with the bottle. If it tastes watery, simmer the strained sauce for a few minutes to reduce it a little. Do not add water, juice or beer at any stage.

Fizzing, a domed lid, cloudiness that was not there before, a slimy film or mould: throw it away without tasting it, and do not boil it to rescue it. A fine sediment at the bottom is normal; shake the bottle.

History: what the court records say, and what is legend

The sauce was made by John Wheeley Lea and William Henry Perrins, chemists at 68 Broad Street, Worcester, who went into partnership on 1 January 1823. The company dates its sauce to 1837, but we have found no dated document from 1837. The earliest known is an advertisement in the Manchester Guardian of 17 October 1840, in which the firm says it had hesitated to sell the sauce “beyond our own vicinity” and that it was made from the recipe of “a nobleman of acknowledged gout”, gout meaning taste. The nobleman is not named in any 1840s advertisement we have found.

The most solid dates come from a lawsuit the firm lost. In 1876 Lea & Perrins went to the High Court to stop Richard Millar & Co. using the name Worcestershire sauce. Their own claim said the recipe had been passed to the founders by a nobleman of the county “about the year 1835”. As newspapers reported the judgment, the Master of the Rolls, Sir George Jessel, accepted that they had been the first to sell a sauce under that name, “about the year 1836”, but found that “within a very few, probably not more than two, years afterwards other people, of whom one Batty seemed to be the first, began to sell an article under the same name.” They had waited too long, and lost. In 1879 a US federal court in Lea v. Deakin went further, calling the name “a sort of generic term given to this kind of sauce from the fact that it was originally manufactured in Worcestershire”. That is why anyone may sell Worcestershire sauce, and why the Lea & Perrins label leans on its signature and the words “The Original and Genuine”. It also means the court record puts the sauce a year or two before the 1837 the firm celebrates: its own claim dated the recipe to about 1835, and the judge dated the first sales to about 1836.

Now the legend, which is what most recipe pages tell as history. It says Lord Sandys, back from Bengal, asked the chemists to copy an Indian sauce; it tasted terrible, the jars were left in the cellar, and years later they had matured into something delicious. The story grew in stages. The earliest naming of Lord Sandys we can find is in 1867, when a London weekly, the London Review, named him as the nobleman (an example cited by food historian Julia Fine). An 1884 version makes it a curry powder recipe brought to Lady Sandys by a novelist, Mrs Grey, which was later turned into a sauce. The forgotten jar turns up by 1892, in a trade journal, with an old Indian officer asking for something hot. The Governor of Bengal arrives in mainstream print by 1978. No Lord Sandys ever governed Bengal, and the firm’s own historian, Brian Keogh, found no record that one was ever in India. Even so, Lea & Perrins’ American website was still telling the cellar story as fact in 2012.

In 2009 the BBC reported that the “original recipes” may have been found: rough, partly coded notes that Keogh, the firm’s former accountant and later its archivist, had rescued from a skip (a dumpster) by the factory, and which his daughter brought to Worcester’s museum. The list ran to water, cloves, salt, sugar, soy, fish, vinegar, acetic acid, essence of lemons, peppers, tamarind (spelled “tamoraide”) and pickles, with quantities but no method and no yield. Heinz, which owned the brand, neither confirmed nor denied it: its spokesman said only, “We are delighted to hear that a number of archive items from the history of Lea & Perrins have been found in safe keeping by the daughter of the company’s former archivist.” The soy in that list fits a 1991 letter from the factory’s general manager saying soy sauce was dropped around the Second World War; today’s UK label lists none. Our recipe keeps it.

Long-keeping anchovy sauces were English before any of this. Hannah Glasse’s The Art of Cookery (1747) has a “Catchup to keep twenty Years” of stale beer, anchovies, shallots, mace, cloves, pepper, ginger and mushrooms, simmered, strained and bottled, with the note: “You may carry it to the Indies.” That is a family resemblance, not a proven ancestor, but it shows that the idea of a bottled, spiced, fishy seasoning was already at home in England.

Worcester sauce around the world

In Britain the sauce is often just Worcester sauce, and the short name is old: an Australian newspaper advertised “Celebrated Worcester Sauce” in 1846. The name is said WUUS-tuh-sher, three syllables, with the vowel of “put”.

In Japan it is usutā sōsu, Worcester sauce. Bull-Dog Sauce says the first Japanese company to sell it was Yamashiroya in Osaka, the predecessor of Ikari Sauce, in 1896; Bull-Dog itself began making sauce in 1905. Japanese makers reworked it with vegetables and fruit into a sweeter sauce for pouring over fried food such as cutlets. Japanese Worcester sauce is still thin, the thinnest class in the Japanese Agricultural Standard; the thicker chūnō and tonkatsu sauces, and later okonomiyaki sauce, grew out of it after the Second World War (Bull-Dog launched the forerunner of its tonkatsu sauce in 1949).

Across Latin America it is salsa inglesa, English sauce, and in El Salvador simply “salsa Perrins”; the Wall Street Journal reported in 1996 that Salvadorans got through about 450 tons (about 410 metric tonnes) of it a year, about 2 1/2 oz (70 g) a head. In Czech kitchens it is simply worcester, said “vorčestr”; Czech Wikipedia, citing a Czech household cookbook, says it was being imported into Czechoslovakia around 1925, and it is a standard seasoning in Czech pub-style steak tartare (tatarák), along with onion, mustard and ketchup.