Batch Scaling Around 30g Cornstarch
| Batch Scale | Weight (g / oz) | US Cups & Spoons | Metric (mL) |
|---|---|---|---|
| Half Batch (0.5×) | 15g (0.53 oz) | ⅛ cup | 27.7 mL |
| Standard (1×) | 30g (1.06 oz) | 3 tbsp + 2 ¼ tsp | 55.5 mL |
| 1.5× Batch | 45g (1.59 oz) | ⅓ cup + 1 tsp | 83.2 mL |
| Double Batch (2×) | 60g (2.12 oz) | ⅓ cup + 2 tbsp + ½ tsp | 110.9 mL |
| Triple Batch (3×) | 90g (3.17 oz) | ⅔ cup + 1 ¾ tsp | 166.4 mL |
Measuring 30g of Cornstarch in the Kitchen
Because 1 US Customary Cup (236.6 mL) of cornstarch weighs 128g when measured spooned & leveled, 30 Grams (30g) translates to 0.23 US cups (3 tbsp + 2 ¼ tsp). By contrast, using the dip scooped measure (145g/cup — a 17g per-cup shift), 30g occupies 3 tbsp + 1 tsp (0.21 cups).
Without a kitchen scale, measure 3 tbsp + 2 ¼ tsp (3.75 tablespoons total) using spooned & leveled technique. Cornstarch packs easily into a solid cake when pressed; scoop gently with a spoon and sweep level with a straightedge.
Source note: USDA FDC #169698 & Argo technical specifications
Frequently Asked Questions
How many cups is 30 grams of cornstarch? ▾
30 grams of cornstarch (spooned & leveled, 128g per US cup) equals 3 tbsp + 2 ¼ tsp (0.23 US Customary Cups, 0.22 Metric 250 mL cups, or 3.75 tablespoons).
Why must cornstarch be dissolved in cold liquid first? ▾
Adding dry cornstarch directly to hot liquid gelatinizes the surface instantly, causing stubborn lumps.
Is cornstarch in the UK called cornflour? ▾
Yes, British recipes calling for cornflour mean pure white refined cornstarch (128g/cup), not yellow cornmeal.