The Fake Vinegar In British Fish and Chip Shops

"Non-brewed condiment" is what they call it: it's chemically very similar to proper vinegar, a mixture of ethanoic acid, colourings and flavourings, but it's put together by just combining simple chemicals rather than brewing. Hardly anyone knows, and those that do know don't generally care; so here's my question. Does it matter?

Thanks to Matt Gray for the sweeping camerawork on this! He's at https://youtube.com/unnamedculprit and http://mattg.co.uk

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