Batch Scaling Around 30g Caster / Superfine Sugar
| Batch Scale | Weight (g / oz) | US Cups & Spoons | Metric (mL) |
|---|---|---|---|
| Half Batch (0.5×) | 15g (0.53 oz) | 1 tbsp + ¼ tsp | 15.8 mL |
| Standard (1×) | 30g (1.06 oz) | ⅛ cup | 31.5 mL |
| 1.5× Batch | 45g (1.59 oz) | 3 tbsp + ½ tsp | 47.3 mL |
| Double Batch (2×) | 60g (2.12 oz) | ¼ cup + ¾ tsp | 63.1 mL |
| Triple Batch (3×) | 90g (3.17 oz) | ⅓ cup + 1 tbsp + ¼ tsp | 94.6 mL |
Measuring 30g of Caster / Superfine Sugar in the Kitchen
Because 1 US Customary Cup (236.6 mL) of caster / superfine sugar weighs 225g when measured poured & leveled, 30 Grams (30g) translates to 0.13 US cups (⅛ cup). By contrast, using the spooned into cup measure (215g/cup — a 10g per-cup shift), 30g occupies 2 tbsp + ¾ tsp (0.14 cups).
Without a kitchen scale, measure ⅛ cup (2.13 tablespoons total) using poured & leveled technique. Pour and level flat. Because the micro-granules pack closer together than regular granulated sugar, 1 cup weighs a dense 225 grams.
Source note: British Baker standard (225g/cup) & Domino Superfine specifications
Frequently Asked Questions
How many cups is 30 grams of caster / superfine sugar? ▾
30 grams of caster / superfine sugar (poured & leveled, 225g per US cup) equals ⅛ cup (0.13 US Customary Cups, 0.13 Metric 250 mL cups, or 2.13 tablespoons).
Why do British and Australian recipes call for caster sugar? ▾
Caster sugar dissolves almost immediately into egg whites and butter, preventing gritty meringues and dry cake crumbs.
Why does a cup of caster sugar weigh 225g while granulated weighs 200g? ▾
Smaller crystal size means tighter packing with significantly less empty airspace between granules.