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E550Anti-caking agentLow concern
Sodium Silicate
In plain words
The short version
Water glass — a niche anti-caking agent now largely replaced by silicates of calcium and magnesium.
Why it's green
It's widely considered safe at the amounts used in food, so we mark it green. The Safety section below has the details.
Safety profile
ADI not specified — historically considered safe at trace residual. The deprecation reflects formulation preference rather than safety re-evaluation.
The detail
Educational information only. Not medical or dietary advice.