Food Additives Encyclopedia

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calcium sulfate ​

Basic Information ​

FieldContent
Chinese namecalcium sulfate
English namecalcium sulfate
INS/E numberINS 516
Functional classAcidity regulator, Colour, Firming agent, Flour treatment agent, Sequestrant, Stabilizer
Year adopted1965
Approved byAustralia/New Zealand (FSANZ), European Union (EFSA)

What is it? ​

Calcium sulfate, also called gypsum, is an inorganic calcium salt used mainly as a coagulant (tofu), firming agent and flour treatment agent. It coagulates soy protein into tofu and supplies calcium.

Source ​

Industrial：由天然石膏矿采选、煅烧或纯化制得硫酸钙

Why is it used? ​

  • Coagulates soy milk into tofu
  • Firms fruit, vegetable and canned produce
  • Improves baking quality as a flour treatment agent
  • Supplies calcium in sports drinks

Common Foods ​

  • Tofu and soy products
  • Flour and bakery products
  • Canned fruits and vegetables
  • Sports drinks
  • Confectionery

Safety ​

ADI (Acceptable Daily Intake)：Not applicable (evaluated, no limit set)

Concerns：

  • 过量使用可能影响口感

Usage Standard ​

China：GB 2760《食品安全国家标准 食品添加剂使用标准》；GB 1886.6 食品添加剂 硫酸钙

International：

  • EU Regulation 1333/2008 Annex II (E 516)
  • FDA 21 CFR 184.1230 (calcium sulfate, GRASS)
  • Codex GSFA (INS 516)
  • FSANZ Food Standards Code (516)

In a nutshell ​

Calcium sulfate (gypsum) is a traditional tofu coagulant and firming agent that also supplies calcium.

Consumer Advice ​

Calcium sulfate (food-grade gypsum) is a natural mineral best known as the coagulant used to make tofu. It is also used as a calcium fortificant, dough conditioner and firming agent in tofu, baked goods, canned vegetables and alcoholic drinks. Calcium is essential to the body. It has an excellent safety profile, no ADI limit, and is widely recognised as safe.

Dietary Restrictions ​

  • Vegan: ✅
  • Halal: ✅
  • Kosher: ✅

Allergens ​

✅ Free from common allergens

Disclaimer ​

The information provided here is for discussion and educational purposes only. It is not medical advice or an evaluation/rating of any product or ingredient. This information may not apply to you; before using or taking any action, you should contact the manufacturer, vendor, medical, dietary, fitness, or other professionals. If you use any information provided here, you do so at your own risk.