Compare E202 vs E221, Potassium sorbate vs Sodium sulphite

Overview

E202 - Potassium sorbate

Potassium sorbate (E202) is a common preservative that helps stop yeast and mold from growing in foods and drinks. It has a neutral taste, dissolves well in water, and works best in mildly acidic foods. Most food safety agencies consider it acceptable when used as intended.

E221 - Sodium sulphite

Sodium sulphite (E221) is a preservative and antioxidant used to slow browning and keep foods stable and fresh-tasting. It belongs to the “sulphites” group, which also includes sulphur dioxide and several sulphite salts used for similar purposes. While widely permitted with limits and labeling rules, a small number of people—especially some with asthma—are sensitive to sulphites.

Synonyms

E202

Potassium sorbate

E221

Sodium sulphite

Sodium sulfite

Functions

preservative

antioxidant preservative

Origins

Synthetic

Products

Found in 23,547 products

Found in 595 products

Search rank & volume

#9322.2K / mo🇺🇸U.S.

#2093.4K / mo🇺🇸U.S.

Awareness score

×0.14

under-aware

×0.84

normal

Search volume over time

Interest over time for 2 keywords in U.S. during the last 10 years.

Interest over time for 3 keywords in U.S. during the last 10 years.

Popular questions

Is potassium sorbate bad for you?
Generally no; potassium sorbate (E202) is a low-toxicity preservative approved by major regulators, though high concentrations can irritate and rare sensitivities occur.
Is potassium sorbate safe?
Yes—it's considered safe at permitted food levels by authorities like FDA, EFSA, and JECFA; occasional mild sensitivities have been reported.
How much potassium sorbate per gallon of mead?
Typically about 0.6–1.0 g per US gallon (≈150–250 mg/L) to inhibit refermentation; add after fermentation is complete and alongside sulfite.
How much potassium sorbate per gallon of wine?
Commonly about 0.6–1.0 g per US gallon (≈150–250 mg/L); use with sulfite and check any local limits on sorbate levels.
Is potassium sorbate gluten free?
Yes—it's a synthetic preservative and contains no gluten, so it's suitable for people with celiac disease.

Comparing E202 - Potassium sorbate vs E221 - Sodium sulphite