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Anchovies that have ripened in salt for about a year are pounded, warmed with a little water until they melt, seasoned with cayenne and rubbed through a sieve into a thick bottled sauce. It is a boundary entry; the fermentation happens earlier, while the salted fish mature, not in the sauce itself.
Amounts from a sourceKitchiner's recipe, 3rd edition of The Cook's Oracle (1821). He notes that thirty fish weighing a pound and a quarter, with two tablespoons of water, made only half a pint of essence.
Salted anchovies10–12
Mellow fish that have been in pickle about twelve months; Kitchiner names Gorgona anchovies[kitchiner1821]
Cold spring water1 tablespoon
Or sherry, Madeira or mushroom ketchup instead of water[kitchiner1821]
Lemon peel only for sauce used at once; acid for a sharper sauce[kitchiner1821]
Total time across the recorded steps: 12 months
Start
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What changes:Left in salt pickle for about twelve months, the anchovies mature and soften
Step 1 of 5
Ripen the anchovies in salt
Time
12 months
Reported
Temperature
Not documented
Salt
None given
Acidity
Not documented
Output: mellow salted anchovies.
Flavour
mellow, high-flavoured
Texture
Kitchiner wants fish that dissolve easily
Colour
Kitchiner calls the flesh of fine fish red
Microbes at work in this step
Not documented for this step.
Method
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
At a glance
Anchovies that have ripened in salt for about a year are pounded, warmed with a little water until they melt, seasoned with cayenne and rubbed through a sieve into a thick bottled sauce. It is a boundary entry; the fermentation happens earlier, while the salted fish mature, not in the sauce itself. Made in 5 steps over 12 months. The longest step, ripen the anchovies in salt, takes 12 months (Kitchiner W. 1821).
Anchovy essence is made from whole salted anchovies pounded and sieved into a thick sauce, not from liquid drained during fermentation as colatura and Asian fish sauces are. Its own process takes minutes; the slow change happens beforehand, in the salt cure.
Ligurian salted anchovies (PGI), a nearby product, not a figure for anchovy essence
The PGI specification has the fish layered in salt under about 0.04 kg/cm² and matured for 40–60 days in 18–25 % or 25–33 % brine, at 16–20 °C with the medium brine or 20–28 °C with the strong.
Anchovy paste (beurre d'anchois)Pounded anchovies sieved, potted and covered with clarified butter; or essence rubbed with flour for immediate use.
Thickened commercial essenceSome makers dissolved the fish in gruel or barley water, or thickened it with flour; it kept half as well.
Wine-based essenceMade with sherry or Madeira, or mushroom ketchup, instead of water.
Safety
Anchovies belong to a fish family that EU law treats as high in histidine. For anchovies matured in brine, no more than two of nine samples may exceed 200 mg/kg histamine and none may exceed 400 mg/kg. Kitchiner already warned that air spoils the sauce, so bottles must be kept tightly closed.
Hazards the sources name: Histamine (anchovies belong to a family of high-histidine fish; EU rules set histamine limits for them).
Kitchiner's Cook's Oracle (3rd edition 1821) notes that Thomas Young claimed the invention in The Epicure (1815), and that Burgess of the Strand in London had long been famous for making it. Commercial essence was so cheap that Kitchiner advised buying rather than making it.
Starter
The sources we found do not say how its fermentation begins.
Temperature, salt and pH
The sources we found give no temperature, salt or pH figure for any of its steps.