Yeast Converter
Convert between active dry yeast, instant yeast, fresh yeast, and sourdough starter. Never let missing yeast stop you from baking again.
Yeast Converter
Convert between different yeast types with activation tips and temperature guides
Active Dry Yeast
SourceGranulated yeast that requires proofing in warm water
Tips & Notes
- •Always proof before using to ensure viability
- •Add a pinch of sugar to activate
- •Water too hot (>120°F) will kill the yeast
- •Bubbles after 5-10 minutes indicate active yeast
- •Can substitute instant yeast 1:1 but must proof
Instant Yeast
TargetFast-acting yeast that mixes directly with dry ingredients
Tips & Notes
- •Can be mixed directly with dry ingredients
- •Works faster than active dry yeast
- •Tolerates higher temperatures than active dry
- •Ideal for bread machines and quick rises
- •Also called rapid-rise or bread machine yeast
💡General Yeast Guidelines
Testing Yeast Viability
Mix yeast with warm water (105-115°F) and a pinch of sugar. If it bubbles and foams within 10 minutes, it's active and ready to use.
Common Packet Sizes
Standard packet = 7g (2¼ tsp). This typically works for 3-4 cups of flour. Adjust quantities based on your recipe requirements.
Temperature Matters
Yeast dies above 140°F (60°C). Optimal rising temperature is 75-85°F (24-29°C). Cold slows rising but develops flavor.
Storage Best Practices
Keep yeast in an airtight container. Refrigerate after opening. Freeze for long-term storage. Always check expiration dates.
Quick Conversion Reference
| If Recipe Calls For | Active Dry | Instant | Fresh |
|---|---|---|---|
| 1 packet active dry (7g) | 7g (2¼ tsp) | 5.25g (1¾ tsp) | 17.5g |
| 1 tablespoon active dry | 1 tbsp | 2¼ tsp | 2.5 tbsp |
| 15g fresh yeast | 6g (2 tsp) | 4.5g (1½ tsp) | 15g |
| 1 teaspoon instant | 1⅓ tsp | 1 tsp | 3⅓ tsp |
Yeast Conversion Tips
Instant Yeast
Mix directly with dry ingredients. No proofing needed. Works 25% faster than active dry yeast.
Active Dry Yeast
Dissolve in warm water (105-115°F) for 5-10 minutes before using. Look for bubbles to confirm activity.
Fresh Yeast
Store refrigerated, use within 2 weeks. Crumble into warm liquid before using. Most perishable type.
Sourdough Starter
Natural leavening takes longer but adds complex flavor. Reduce flour and water to compensate for starter.