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Why Cup Measurements Are Broken (and What to Do About It)

·Simmer

If you've ever followed a recipe to the letter and ended up with dry, crumbly cookies or a dense, heavy cake, the problem probably wasn't you. It was the cup.

The problem with volume measurements

A "cup of flour" is one of the most imprecise measurements in cooking. Depending on how you scoop it, whether you sift first, and even the humidity in your kitchen, a single cup of all-purpose flour can weigh anywhere from 120g to 180g. That's a 50% variance.

For sugar, the difference is less dramatic but still significant. For butter, cups require you to mentally convert sticks. For liquids, cups are actually fine — but then you're mixing measurement systems.

Why grams are better

Professional bakers almost universally use weight measurements. The reasons are straightforward:

  • Consistency: 150g of flour is always 150g of flour, regardless of how you scoop it
  • Precision: No ambiguity about "packed" vs "leveled" vs "sifted"
  • Scalability: Doubling a recipe means doubling the numbers, no fraction math
  • Less cleanup: Weigh everything into one bowl on a scale

What Simmer does differently

When you import a recipe into Simmer, we don't just swap "1 cup" for a generic gram value. We know that 1 cup of flour weighs about 125g, but 1 cup of sugar weighs 200g, and 1 cup of butter weighs 227g.

Our ingredient database tracks the density of over 200 common ingredients, so every conversion is accurate to the specific ingredient you're measuring.

Making the switch

You don't need to throw away your measuring cups tomorrow. But next time a recipe isn't turning out right, try weighing your flour instead of scooping it. You might be surprised at the difference 30g makes.