Ingredient · E222

Freshness Preserved By Sodium Bisulfite

Source
Not animal-derived
Allergen
No
Role in food
Sodium bisulfite is used as a preservative to prevent spoilage and maintain the color …

What is Freshness Preserved By Sodium Bisulfite?

Sodium bisulfite is a chemical compound that is a salt of sulfurous acid. It is produced industrially by treating sodium hydroxide or sodium carbonate with sulfur dioxide. It is commonly used in its hydrated form, sodium bisulfite monohydrate.

Is Freshness Preserved By Sodium Bisulfite vegan?

Freshness Preserved By Sodium Bisulfite is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Freshness Preserved By Sodium Bisulfite gluten-free?

It does not contain gluten.

Is Freshness Preserved By Sodium Bisulfite a major allergen?

Sodium bisulfite is not derived from any of the nine FDA major allergens.

What is Freshness Preserved By Sodium Bisulfite used for?

Sodium bisulfite is used as a preservative to prevent spoilage and maintain the color of foods, especially dried fruits, vegetables, and processed potatoes.

Is Freshness Preserved By Sodium Bisulfite safe?

In the U.S., sodium bisulfite is generally recognized as safe (GRAS) by the FDA when used according to good manufacturing practices.

Why it's used

Sodium bisulfite is used as a preservative to prevent spoilage and maintain the color of foods, especially dried fruits, vegetables, and processed potatoes. It works by inhibiting the activity of enzymes that cause browning and by acting as an antioxidant.

Health notes

In the U.S., sodium bisulfite is generally recognized as safe (GRAS) by the FDA when used according to good manufacturing practices. It is an important preservative for many foods. However, some individuals, particularly those with asthma, may be sensitive to sulfites and experience allergic-type reactions. The WHO/IARC has not classified sulfites as to their carcinogenicity to humans. EFSA has evaluated sulfites and found them to be safe for the general population at typical intake levels, though they noted potential adverse reactions in sensitive individuals.

Allergen info

Sodium bisulfite is not derived from any of the nine FDA major allergens. It does not contain gluten.

Foods that contain Freshness Preserved By Sodium Bisulfite

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Cheddar Broccoli Potato Soup, Cheddar Broccoli Idahoan Foods, LLC Cheddar Broccoli Potato Soup, Cheddar Broccoli Other Soups High in sodium — 47% DV per serving High in saturated fat — 20% DV per serving 404kcal 8.5Protein 12.8Fat 63.8Carbs Italian Sausage & Potato Flavored Hearty Soup, Italian Sausage & Potato Idahoan Foods, LLC Italian Sausage & Potato Flavored Hearty Soup, Italian Sausage & Potato Other Soups High in sodium — 32% DV per serving High in saturated fat — 20% DV per serving 400kcal 14Protein 10Fat 66Carbs Scalloped Homestyle Casserole, Scalloped Idahoan Foods, LLC Scalloped Homestyle Casserole, Scalloped Vegetable and Lentil Mixes 357kcal 7.1Protein 3.6Fat 78.6Carbs Creamy Potato Hearty Soup, Creamy Potato Idahoan Foods, LLC Creamy Potato Hearty Soup, Creamy Potato Canned Soup High in sodium — 45% DV per serving High in saturated fat — 40% DV per serving 440kcal 6Protein 20Fat 60Carbs Loaded Potato Hearty Soup, Loaded Potato Idahoan Foods, LLC Loaded Potato Hearty Soup, Loaded Potato Canned Soup High in sodium — 44% DV per serving High in saturated fat — 30% DV per serving 420kcal 8Protein 18Fat 60Carbs Au Gratin Homestyle Casserole, Au Gratin Idahoan Foods, LLC Au Gratin Homestyle Casserole, Au Gratin Vegetable and Lentil Mixes High in sodium — 25% DV per serving 357kcal 7.1Protein 3.6Fat 75Carbs Loaded Baked Homestyle Casserole With Cheeses, Onion & Chives With The Taste Of Butter & Bacon, Loaded Baked Idahoan Foods, LLC Loaded Baked Homestyle Casserole With Cheeses, Onion & Chives With The Taste Of Butter & Bacon, Loaded Baked Vegetable and Lentil Mixes High in sodium — 27% DV per serving 357kcal 7.1Protein 1.8Fat 75Carbs Scalloped Home Style Casserole, Scalloped Idahoan Foods, LLC Scalloped Home Style Casserole, Scalloped Vegetable and Lentil Mixes 357kcal 7.1Protein 3.6Fat 78.6Carbs Au Gratin Homestyle Casserole, Au Gratin Idahoan Foods, LLC Au Gratin Homestyle Casserole, Au Gratin Frozen Prepared Sides High in sodium — 24% DV per serving 357kcal 7.1Protein 3.6Fat 75Carbs Potatoes Stroganoff Hamburger Helper Twin Pack GENERAL MILLS SALES INC. Potatoes Stroganoff Hamburger Helper Twin Pack Dough Based Products / Meals High in sodium — 22% DV per serving 352kcal 5.8Protein 1.2Fat 79.9Carbs Betty Crocker Roasted Garlic and Herb Crispy Potatoes GENERAL MILLS SALES INC. Betty Crocker Roasted Garlic and Herb Crispy Potatoes Vegetable Based Products / Meals 360kcal 5.7Protein 0.7Fat 82.6Carbs Potatoes Stroganoff Hamburger Helper GENERAL MILLS SALES INC. Potatoes Stroganoff Hamburger Helper Baking/Cooking Mixes/Supplies High in sodium — 21% DV per serving 355kcal 5.1Protein 1.1Fat 81.2Carbs
Preservative (28015 products) Potassium Sorbate (21407 products) Sodium Benzoate (13792 products) Sodium Nitrite (13550 products) Sodium Erythorbate (9349 products) Calcium Propionate (8459 products) Preservatives (8104 products) Sorbic Acid (7394 products)

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Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.