Cornstarch (Pure Maize Starch)
Flours & Starches · 8 specs
Direct Answer
Cornstarch is pure refined endosperm starch from corn (Zea mays). Per 100g, it provides 381 kcal, 91.3g carbohydrates (0.9g fiber), 0.26g protein, and 0.05g fat, gelatinizing into a translucent gloss at 62°C–72°C.
Source: USDA FoodData Central (FDC ID: 169698) · Last reviewed Aug 28, 2026
Specs
| Energy / Calories | 381 kcal |
| Protein / Gluten Potential | 0.26 (Pure Starch) g |
| Carbohydrates | 91.3 g |
| Dietary Fiber | 0.9 g |
| Total Fat | 0.05 g |
| Ash Content | 0.09 % |
| Starch Gelatinization Temp | 62 – 72 °C (144–162°F) |
| Gluten Status | Naturally Gluten-Free |
Gelatinization & Slurry Technique
Cornstarch consists of 25% amylose and 75% amylopectin. To prevent clumping, it must be dissolved into cold liquid ('slurry') before heating to its gelatinization point.
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