High altitude yeast bread & sourdough
Dough rises faster at altitude, so it can over-proof before flavour develops. Use about 25% less yeast, or let it rise twice and punch down once. Enter your elevation and recipe below to get adjusted amounts.
Sea-level recipe
Adjusted for 5,280 ft (5,000 ft band), yeast bread & sourdough
| Change | Sea level | At your elevation |
|---|---|---|
| Yeast | 7.0 g | 5.3 g |
| Liquid | 1 cup | +1½ tbsp |
| Oven | 350 °F | 365 °F |
| Bake time | 30 min | ≈ 23 min |
Starting points, not guarantees. Make one batch, note what happened, then fine-tune. Start checking doneness at the shorter time.
Tips for yeast bread & sourdough at altitude
- Dough rises faster at altitude, so it can over-proof before flavour develops. Use about 25% less yeast, or let it rise twice and punch down once.
- Flour dries out faster in thin, dry mountain air. You may need a little more water to reach the same dough feel.
- Watch the dough, not the clock: proof until it has risen by the amount the recipe describes.
- Sourdough works well at altitude; a cooler bulk fermentation keeps it from racing ahead.
Oven: raise by 0–15 °F. Adjustment amounts follow the Colorado State University Extension high-altitude table and King Arthur Baking guidance.
Other elevations
Questions bakers ask
How do I adjust yeast bread for high altitude?
Reduce yeast by about a quarter, expect shorter rises, and add a little extra water if the dough feels stiff. Some bakers raise the oven by up to 15 °F so the loaf sets before over-expanding.
Does sourdough need adjusting at altitude?
Less than yeasted bread. Expect fermentation to run somewhat faster, so check the dough earlier, and add a little water because flour is often drier at altitude.