how many grams in a teaspoon of yeast?

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things people ask

• How many teaspoons are in a 7-gram yeast packet?
  A 7-gram packet of instant or active dry yeast holds about 2¼ teaspoons. The 11-gram sachets common in Europe are closer to 3½ teaspoons. If a recipe calls for one packet and you're measuring from a jar, 2¼ teaspoons is the safe default for both instant and active dry — they weigh the same per teaspoon even though their behavior in dough differs slightly.
• Is instant yeast and active dry yeast the same weight per teaspoon?
  Per teaspoon, both come in around 3 grams — close enough that home recipes treat them as 1:1 by volume. The difference is behavior, not mass: instant yeast can go straight into the flour, while active dry traditionally benefits from a 5-10 minute proof in warm liquid. Some bakers shave 25 percent off the active dry dose when they know it's fresh, but at teaspoon scale the variance is small.
• How much yeast per cup of flour at teaspoon level?
  A workable range is ¼ to 1 teaspoon of instant yeast per cup of flour (about 120-130 grams), depending on how long you want the dough to ferment. A quarter teaspoon suits an overnight cold proof for pizza or no-knead bread; a full teaspoon pushes a same-day loaf in 1-2 hours. Sweet doughs with butter and sugar slow the yeast, so they typically need the upper end of that range.

related conversions

• Yeast: cups to grams
• Yeast: tablespoons to grams
• Yeast guide