Cake Flour vs Cornstarch
Density, calorie, and weight differences — and whether they can substitute for each other.
Substitution Verdict
Density difference: 6.2%. Very similar — 1:1 substitution is usually safe.
Calories per 100 g: Cake Flour 362 kcal vs Cornstarch 381 kcal. Difference: 19 kcal — Cornstarch is higher.
Weight Conversions (per Spoon and Cup)
| Measure | Cake Flour | Cornstarch |
|---|---|---|
| 1 tablespoon | 7 g | 8 g |
| 1 teaspoon | 2.3 g | 2.5 g |
| 1 cup | 113 g | 120 g |
| Density | 0.47 g/ml | 0.5 g/ml |
Measuring Tips
Sift cake flour before measuring — clumps make it pack inconsistently. Use spoon-and-level method.
Always make a slurry with cold liquid before adding to hot mixtures — clumps if added directly to hot liquid.
Frequently Asked Questions
Can Cake Flour be substituted for Cornstarch?▾
Very similar — 1:1 substitution is usually safe. Density of Cake Flour is 0.47 g/ml; Cornstarch is 0.5 g/ml — a 6.2% difference. But flavor, moisture, and chemistry can still differ — verify suitability for the specific recipe.
How many grams in 1 tablespoon of Cake Flour vs Cornstarch?▾
1 tbsp Cake Flour ≈ 7 g. 1 tbsp Cornstarch ≈ 8 g. By weight: 1 tbsp Cake Flour = 0.88 tbsp Cornstarch.
Which has more calories, Cake Flour or Cornstarch?▾
Per 100 g: Cake Flour 362 kcal, Cornstarch 381 kcal. Cornstarch has 19 more kcal.
What is Cake Flour typically used for?▾
Cake Flour is commonly used in: sponge cake, angel food cake, delicate pastries, chiffon cake. Source: king-arthur.
What is Cornstarch typically used for?▾
Cornstarch is commonly used in: thickening sauces, Chinese stir-fry, fruit pie filling, custards. Source: king-arthur, usda-fdc.