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USDA FoodData Central

USDA FoodData Central is a tier 1 source on AskedWell — Peer-reviewed / governmental / scientific. Highest institutional trust. It's cited in 5 cooking, fermentation, and baking answers. Click any answer below to read the cited claim in context.

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  1. how to convert… · baking

    How do I convert cups to grams?

    Cups-to-grams conversion depends entirely on the ingredient — there's no universal rate. Water/milk: 1 cup = 240g. All-purpose flour: 1 cup = 120-125g. Granulated sugar: 1 cup = 200g. Brown sugar (packed): 1 cup = 220g. Butter: 1 cup = 227g. Always check ingredient-specific charts.

    Why we cite it here: Official US food composition database with weights

  2. how to convert… · baking

    How do I convert ounces to grams?

    Standard conversion: 1 ounce (oz) = 28.35 grams (g). Quick mental math: 1 oz ≈ 28g. Common conversions: 1 lb = 16 oz = 453.6g. 1 fl oz (fluid) = ~29.6 mL = 30g (water). Weight oz and fluid oz are different — don't confuse them. Use kitchen scale for precision.

    Why we cite it here: Official US food weight + measurement standards

  3. how to convert… · baking

    How do I convert tablespoons to grams?

    Conversion varies by ingredient. Water/milk: 1 tbsp = 15g. Flour: 1 tbsp = 8g. Granulated sugar: 1 tbsp = 12.5g. Butter: 1 tbsp = 14g. Honey: 1 tbsp = 21g. Salt (Diamond Crystal kosher): 1 tbsp = 9g. Oil: 1 tbsp = 13.5g. 1 US tablespoon = 15 mL volume.

    Why we cite it here: Official US food composition database with weights

  4. how to convert… · baking

    How do I convert teaspoons to grams?

    Conversion varies by ingredient. Water: 1 tsp = 5g. Salt (table): 1 tsp = 6g. Salt (Diamond Crystal kosher): 1 tsp = 3g. Sugar: 1 tsp = 4g. Flour: 1 tsp = 2.5g. Baking soda: 1 tsp = 4.6g. Baking powder: 1 tsp = 4g. Vanilla extract: 1 tsp = 4g. 1 US teaspoon = 5 mL volume.

    Why we cite it here: Official US food composition database with weights

  5. how to convert… · baking

    How do I convert milliliters to cups?

    US standard: 1 cup = 240 mL. Metric cup: 1 cup = 250 mL. Quick conversions: 60 mL = 1/4 cup · 120 mL = 1/2 cup · 180 mL = 3/4 cup · 240 mL = 1 cup · 480 mL = 2 cups · 1000 mL (1 L) = 4.2 cups (US) or 4 cups (metric). Use scale or measuring jug for precision.

    Why we cite it here: Official US food composition database with weights + volumes

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