eBay ! ... e.g. http://www.ebay.co.uk/itm/500g-Tartaric-Acid-food-grade-home...
but if it is to make something like Rochelle salt then buying the salt may be easier and cheaper.
P.S. I'm not sure but I seem to remember reading somewhere that Cream of Tartar often contains substitutes for tartaric acid.
[Edited on 9-12-2017 by Sulaiman] |