Food additive databaseseasoningChecked 2026-10-02

Potassium Sulfate 硫酸カリウム

Designated additivePermitted in the EU (E515(i))

Purpose: seasoning
On the label: “調味料（無機塩）” (seasoning (inorganic salts)), “調味料（アミノ酸等）” (seasoning (amino acids, etc.)), “硫酸K” (potassium sulfate), “硫酸カリウム” (potassium sulfate)
Name in the List of Designated Additives: 硫酸カリウム (No. 453)

In Japan

Used to adjust taste.
It falls within the range of the group name “調味料（無機塩）” (seasoning (inorganic salts)). When used for that purpose, it can be labeled together as “調味料（無機塩）” or “調味料（アミノ酸等）”.
The simplified name when written by substance name is “硫酸K”. No standards for use have been set.

Japan's standards for use

There are no standards for use that limit which foods or how much (the general standards for all additives still apply).

This is a summary of the standards for use. See the source list for the exact conditions.

In the EU

It is on the EU list of food additives (Regulation (EC) No 1333/2008, Annex II) as E515(i).

When it is labeled under a shared name

Potassium Sulfate may be declared on the label in the same way as “調味料（アミノ酸等）”. See Seasoning (amino acids etc.) — e.g. MSG for details.

Sources

Checked 2026-10-02. Rules and evaluations change over time. This page is a translation of our Japanese page; if they differ, the Japanese page is the reference.

This page lists facts stated in laws and in evaluations by public bodies; it is not a safety verdict. Additives used in Japan are approved by the government, which sets the foods and amounts they can be used in. The ADI is a guide to the amount that is considered safe to take every day over a lifetime.

Other substances used as seasoning

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