Batch Scaling Around ⅓ US Cup Caster / Superfine Sugar
| Batch Scale | Weight (g / oz) | US Cups & Spoons | Metric (mL) |
|---|---|---|---|
| Half Batch (0.5×) | 37.5g (1.32 oz) | 2 tbsp + 2 tsp | 39.4 mL |
| Standard (1×) | 75g (2.65 oz) | ⅓ cup | 78.9 mL |
| 1.5× Batch | 112.5g (3.97 oz) | ½ cup | 118.3 mL |
| Double Batch (2×) | 150g (5.29 oz) | ⅔ cup | 157.7 mL |
| Triple Batch (3×) | 225g (7.94 oz) | 1 cup | 236.6 mL |
Measuring ⅓ US Cup of Caster / Superfine Sugar in the Kitchen
Measured poured & leveled at a verified bulk density of 225g per US cup, ⅓ US cup of caster / superfine sugar weighs 75 grams (2.65 ounces). Measured using the spooned into cup method (215g/cup), that same ⅓ cup holds 71.7g — a 3.3g difference in your mixing bowl.
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 grams is ⅓ cup of caster / superfine sugar? ▾
⅓ US Cup of caster / superfine sugar measured poured & leveled weighs 75 grams (2.65 ounces).
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.