CPC Bread & Yeast Products 1 — Questions and Answers
Question 1: What is the primary function of gluten in bread making?
- To add sweetness
- To provide structure and trap gases produced by fermentation (Correct answer)
- To speed up yeast activity
- To brown the crust
Correct answer: To provide structure and trap gases produced by fermentation
Gluten, formed when glutenin and gliadin proteins hydrate and are worked together, provides the extensible network that traps COâ‚‚ gas and gives bread its structure.
Question 2: What is the 'windowpane test' used to assess in bread dough?
- Dough hydration level
- Proper gluten development (Correct answer)
- Correct fermentation
- Correct proofing
Correct answer: Proper gluten development
The windowpane test checks gluten development — properly developed dough can be stretched thin enough to be translucent without tearing.
Question 3: What is 'autolyse' in bread making?
- The final proofing stage
- A rest period after mixing flour and water before adding other ingredients (Correct answer)
- The process of shaping dough
- Fermentation at cold temperature
Correct answer: A rest period after mixing flour and water before adding other ingredients
Autolyse is a resting period (typically 20–60 minutes) after flour and water are combined, allowing hydration and initial gluten development before adding yeast and salt.
Question 4: At what internal temperature is a standard white sandwich loaf considered fully baked?
- 77°C (170°F)
- 88°C (190°F)
- 96°C (205°F) (Correct answer)
- 100°C (212°F)
Correct answer: 96°C (205°F)
A fully baked white sandwich loaf should reach an internal temperature of approximately 96°C (205°F) to ensure the crumb is fully set and no longer doughy.
Question 5: What is 'poolish' in bread making?
- A laminated dough
- A pre-ferment made with equal weights of flour and water plus a small amount of yeast (Correct answer)
- A sourdough starter
- A high-hydration dough
Correct answer: A pre-ferment made with equal weights of flour and water plus a small amount of yeast
Poolish is a wet pre-ferment made with a 1:1 ratio of flour to water by weight and a tiny amount of yeast, fermented 8–18 hours to develop flavor.
Question 6: What gas is primarily responsible for leavening in yeast breads?
- Oxygen
- Nitrogen
- Carbon dioxide (Correct answer)
- Hydrogen
Correct answer: Carbon dioxide
Yeast consumes sugars through fermentation and produces carbon dioxide (COâ‚‚), which inflates the gluten network and leavens the bread.
CPC Bread & Yeast Products 1
What is the primary function of gluten in bread making?