E334: Tartaric acid
What it does
Adds a sour taste (baking powder, drinks, confectionery).
What it is made from
Extracted from the by-products of winemaking (grape lees), or synthetic.
Allergies and diets
No allergy or diet concern is recorded for this additive. That is not a guarantee: the source can differ between makers, so check the label.
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General information, not medical advice. Sources differ between manufacturers: check the label or ask the maker.