Batch Scaling Around 400g Cornstarch
| Batch Scale | Weight (g / oz) | US Cups & Spoons | Metric (mL) |
|---|---|---|---|
| Half Batch (0.5×) | 200g (7.05 oz) | 1 ½ cups + 1 tbsp | 369.7 mL |
| Standard (1×) | 400g (14.11 oz) | 3 ⅛ cups | 739.3 mL |
| 1.5× Batch | 600g (21.16 oz) | 4 ⅔ cups + 1 tsp | 1109 mL |
| Double Batch (2×) | 800g (28.22 oz) | 6 ¼ cups | 1478.7 mL |
| Triple Batch (3×) | 1200g (42.33 oz) | 9 ⅓ cups + 2 tsp | 2218 mL |
Measuring 400g of Cornstarch in the Kitchen
Because 1 US Customary Cup (236.6 mL) of cornstarch weighs 128g when measured spooned & leveled, 400 Grams (400g) translates to 3.13 US cups (3 ⅛ cups). By contrast, using the dip scooped measure (145g/cup — a 17g per-cup shift), 400g occupies 2 ¾ cups (2.76 cups).
Without a kitchen scale, measure 3 ⅛ cups (50 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 400 grams of cornstarch? ▾
400 grams of cornstarch (spooned & leveled, 128g per US cup) equals 3 ⅛ cups (3.13 US Customary Cups, 2.96 Metric 250 mL cups, or 50 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.