Apple juice: why 238 g per cup is wrong
Health Canada, Nutrient Value of Some Common Foods (2008), Table 5 publishes 238 g (8.4 oz) per US cup of apple juice. This site rejects that figure and publishes 248 g (8.7 oz) instead, from USDA SR Legacy "Apple juice, canned or bottled, unsweetened, without added ascorbic acid" (FDC 173933) (density 1.0482 g/mL, matching the composition of the substance). The reason:
Apple juice sold as 100% juice in the US must measure at least 11.5 °Brix (21 CFR 101.30), and a sugar solution that strong weighs 1.043 g/mL; 126 g in 125 mL is 1.008 g/mL, barely heavier than water. Whole-gram rounding allows 1.004 to 1.012 g/mL, still 3% short. USDA weighs a cup at 248 g (1.048 g/mL) and juice measured at 12% solids weighs 1.042 to 1.046 g/mL. The same Health Canada table agrees with USDA for grape, pineapple and prune juice, so the error is particular to this row.
The arithmetic
| Source | 1 cup | Density | Status |
|---|---|---|---|
| Health Canada, Nutrient Value of Some Common Foods (2008), Table 5 | 238 g8.4 oz | 1.008 g/mL | Rejected on physics |
| USDA SR Legacy "Apple juice, canned or bottled, unsweetened, without added ascorbic acid" (FDC 173933) | 248 g8.7 oz | 1.0482 g/mL | Published here |
The published figure and its sources
The full sourcing for apple juice, including every accepted and rejected figure, the state or filling method behind each, and the physics or standards reasoning applied, is on the ingredient page.
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