Soy Sauce Made From Soy And Wheat (Shoyu), Low Sodium: Grams to Cups Conversion
Shoyu-style low-sodium soy sauce is a traditionally brewed Japanese soy sauce made from soybeans and wheat, with sodium reduced by roughly 40–50% compared to standard formulations. Its density of 1.078 g/ml is marginally lower than regular soy sauce (typically ~1.10 g/ml) because dissolved sodium chloride — removed or reduced in the low-sodium version — is a significant contributor to density in regular soy sauce. A tablespoon weighs approximately 15.9 g; a cup weighs approximately 255 g. Used wherever regular soy sauce is called for with a lower sodium requirement: stir-fries, marinades, dipping sauces, and Asian braises.
Quick convert
- US cup = 236.588 mL
- 1 tbsp = 14.787 mL
- 1 tsp = 4.929 mL
Reference table
| g | Cups |
|---|---|
| 50 | 0.2 |
| 100 | 0.4 |
| 150 | 0.6 |
| 200 | 0.8 |
| 250 | 1.0 |
FAQ
- Is low-sodium soy sauce lighter per tablespoon than regular soy sauce?
- Yes, slightly. Regular soy sauce (shoyu) is approximately 1.08–1.10 g/ml; this low-sodium version is at the lower end of that range (1.078 g/ml) because dissolved salt contributes meaningfully to density. The practical difference per tablespoon is about 0.2–0.5 g — negligible for cooking, but measurable in large-batch production.
- Can I substitute regular soy sauce for low-sodium shoyu by the same gram weight?
- By gram weight, yes — the density difference is less than 2%. The only meaningful difference is sodium content: regular soy sauce delivers approximately twice the sodium per tablespoon. If a recipe uses 30 g of low-sodium soy sauce, using 30 g of regular soy sauce doubles the sodium load. Adjust accordingly if sodium is a dietary concern.
- How many grams is a quarter cup of low-sodium soy sauce?
- At 1.078 g/ml, a quarter cup (59.1 ml) of low-sodium soy sauce weighs approximately 64 g. This is about 5 g more than a quarter cup of water — a small but consistent difference that compounds in marinades calling for ½ cup or more.