The Victoria Date Company Limited of Lambeth, South London published this ad for Victoria date vinegar in New high class cookery with game recipes compiled by Mrs Charles Clarke in 1896.
‘ Victoria Date Vinegar
Absolutely pure, delicately flavoured, and most palatable. Once used – always used.
This vinegar is guaranteed made from dates and absolutely free from pyroligneous and added mineral acids.
It is superior to the malt vinegars. Its flavour is delicious, delicate, and closely resembles wine vinegar. For soups, fish and table use it is unsurpassed.
Sold in Imperial Courts, pints and half pints.
Apply to your grocer for a free sample, or direct to the Victoria Date Co Ltd., Victoria Works, 112 Belvedere Road, Lambeth, London, S.E.’
The ad promised the vinegar was free from pyroligneous contaminants; in other words, any impurities that may have seeped into the liquid which were produced by the action of fire or heat on wood. The word pyroligneous originated in the late 18th century from the French pyroligneux / pyroligneuse.