❓ What is E221?

E221 is Sodium Sulphite, a preservative similar to E220 but in salt form, used to maintain color and prevent spoilage.

📋 Quick Facts

• Category: Preservative, antioxidant
• Origin: Synthetic (sodium salt of sulfurous acid)
• Common Uses: Canned vegetables, dried fruits, shrimp, wine production
• Safety: Safe within limits; allergenic potential for sensitive groups
• Also known as: Sodium sulfite
• Typical Use Level: 50–200 ppm depending on regulation
• How to Use: Added directly to foods as powder or solution
• Dietary: Vegan, vegetarian, but allergenic for some
• ADI: 0.7 mg/kg body weight/day
• Key Feature: Effective in preserving light color in processed foods

🧭 Verdict

Functional preservative but less consumer-friendly due to allergy concerns.