Sodium Hydroxide

In laboratories and wine testing, sodium hydroxide is used as a base for various tests such as titrations to prevent corrosion by organic acids from wine. Sodium hydroxide is permitted for use in grape wine in multiple countries worldwide

What is this substance?

Synonym(s): Caustic soda, Lye, Sodium Hydrate
CAS Number: 1310-73-2
E Number: 524
INS Number: 524

Who recognises use of this substance in winemaking?

International Organisations

Codex Alimentarius

-Classification, Food Category, Functional Class and Recommended Usage is not available at this time.

International Organisation of Vine and Wine (OIV)

-Classification, Food Category, Functional Class and Recommended Usage is not available at this time.

FIVS

Classification Category 2 – Naturally occurring in grapes and treatment residual in wine

Recommended Usage

Good Manufacturing Practice (GMP)

How is this substance used in winemaking?

Usage in Winemaking:

Sodium hydroxide is often used in brandy or wine spirits as an acid neutrilising agent. It is also used as a deacidifier to remove organic acids.

Where can I find more information on this substance?

See FIVS technical papers for more information - click here.

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Sodium Hydroxide

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