The beloved British tradition of fish and chips, with 382 million portions consumed annually, often comes with a surprising twist: the brown liquid sprinkled on top is rarely real vinegar. Instead, most chip shops serve a synthetic alternative known as non-brewed condiment.
What Is Non-Brewed Condiment?
Non-brewed condiment (NBC) is a chemical substitute for malt vinegar. It is made by mixing synthetic food-grade acetic acid with water, flavourings, and caramel colouring to mimic the appearance and tangy taste of malt vinegar. Unlike real vinegar, which requires a slow fermentation process, NBC is produced instantly and is cheaper, with a longer shelf life. Some chip shops buy it in concentrated form and dilute it themselves.
The Legal Battle Over the Name 'Vinegar'
The term 'non-brewed condiment' stems from a landmark 1950 High Court case. Traditional malt vinegar producers sued manufacturers of the synthetic alternative, who had been selling it as 'table vinegar' or 'non-brewed vinegar'. The court ruled that calling a non-fermented solution 'vinegar' was a false trade description, as the word implies a biological brewing process. To comply, manufacturers invented the new term.
What Qualifies as Real Vinegar?
Under UK law, to be called 'spirit vinegar', the product must come from an agricultural source and undergo double fermentation: first converting sugar to alcohol, then alcohol to acetic acid. Synthetically produced acetic acid cannot be labelled as vinegar. Authentic malt vinegar is still available in some chip shops, but non-brewed condiment remains the more common choice due to cost and convenience, plus it contains no alcohol, suiting teetotal customers.
