E284 – Boric acid

Description

White or colorless crystals or powder

Risks

Notes

Boric acid is a white or colorless crystalline powder derived from the mineral borax, which is mined from dried lake beds in places like California and Turkey. It can also be produced synthetically by treating borax with sulfuric acid. Despite its name, it's actually a very weak acid that's much gentler than acids like vinegar or lemon juice. The compound has been known and used for centuries, originally extracted from volcanic regions where it occurs naturally. In food production, boric acid serves as a preservative that helps prevent the growth of bacteria, yeasts, and molds. However, its use in food is quite limited and heavily regulated. You're most likely to encounter it in imported foods, particularly certain types of fish eggs (caviar) or in some traditional foods from specific regions where its use is still permitted in small amounts. Boric acid is considered synthetic when used as a food additive, even though it originates from natural mineral sources. It's technically suitable for vegetarians and vegans since it's mineral-based, but many countries, including those in the European Union, have severely restricted or banned its use in food due to safety concerns. In places where it is still permitted, it's only allowed in very specific products and in extremely small quantities.