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To grow yeast requires:
- PH level (acidity level ph7-ph1)
- moisture
- a temperature between 10 and 50ºC but ideally 30-37ºC
- a food source such as sugar or flour.
1. Moisture- which is provided by milk or water
2. Warmth- on top of a oven or in a sunny place, which activates the yeast
3. Food- which is provided by sugar or flour
Wiki User
∙ 14y ago
Anonymous
oxygen, suger & air
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