Last reviewed May 2026 · 1 min read
Is Sodium Metabisulfite vegan?
Also known as: E223, Sodium pyrosulfite
E-number: E223
Vegan
Suitable for a vegan diet.
Yes — It is produced synthetically from sodium hydroxide and sulfur dioxide.
01 · The basics
What is Sodium Metabisulfite?
An inorganic salt used as a disinfectant, antioxidant, and preservative in food and winemaking.
02 · The source
Where it comes from
It is produced synthetically from sodium hydroxide and sulfur dioxide. It involves no animal products.
03 · Alternatives
Best vegan alternatives
Potassium sorbate
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Frequently asked
FAQ
Is E223 vegan friendly?
Yes, it is a mineral salt and completely vegan.
Does it cause allergies?
Yes, 'sulfite sensitivity' is common, and it can trigger respiratory issues in some people, which is why its presence must be labeled.
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