What Brewer's Yeast Does in Pizza Dough
Brewer's yeast (baker's yeast) is an essential ingredient for the rising of pizza dough. It consists of living microorganisms (Saccharomyces cerevisiae) that activate in the presence of water, sugars, and heat. These microorganisms consume the sugars in the flour and release carbon dioxide and alcohol. Here's what happens during the rising process:
- Carbon dioxide: The carbon dioxide bubbles create small air pockets in the dough, making it soft and giving it a porous structure.
- Aroma development: The alcohol and other aromatic compounds produced during rising enrich the flavor of the pizza. Dough that rises for a long time develops a more complex taste and less of a "yeasty" flavor.
How Much Brewer's Yeast to Use?
The amount of brewer's yeast depends on the rising time and temperature:
-
Long rise (12-24 hours): If you have time for a long rise (recommended for a more digestible and flavorful pizza), you can use less yeast. Use about 1 gram of fresh yeast per kilo of flour.
-
Short rise (2-4 hours): If you have less time, you will need to increase the amount of yeast. Generally, for a quick rise, you can use 15-25 grams of fresh yeast per kilo of flour.
-
Temperature: In cold weather, yeast acts more slowly, so if you let the dough rise in the refrigerator (for example, for a 24-hour rise), you can reduce the amount of yeast even more.
Dry or Fresh Yeast?
If you use dry yeast, remember that it is more concentrated than fresh yeast: use about one third the weight of fresh yeast (e.g., 3 grams of dry yeast equals 9 grams of fresh yeast).
Tips for a Good Rise
- Water temperature: Use lukewarm water, around 20-25°C, to activate the yeast without "burning" it.
- Watch the salt: Add salt after kneading the other ingredients, as salt can slow down or inhibit yeast activity.
- Patience and rest: After the first rise, let the dough rest for at least 15 minutes before shaping the balls to roll out.
Happy baking! Let me know if you need help with other quantities or dough variations!