CDM Dough Preparation & Ingredient Handling 4

Question 1

A Certified Doughnut Maker uses the windowpane test on yeast-raised dough. A thin, translucent membrane that stretches without tearing indicates:

Accepted Answer

Gluten is fully developed and dough is ready

Answer

A translucent, unbroken membrane in the windowpane test confirms strong, fully developed gluten structure.

Question 2

What is the effect of using too much sugar in a yeast-raised doughnut formula?

Accepted Answer

High osmotic pressure inhibits yeast activity, slowing fermentation

Answer

Excess sugar creates osmotic stress on yeast cells, drawing water away from them and slowing or stopping fermentation.

Question 3

Which ingredient in a cake doughnut formula acts as an emulsifier to blend fat and water-based components?

Accepted Answer

Whole eggs

Answer

Egg yolks contain lecithin, a natural emulsifier that helps bind fat and water in cake doughnut batter.

Question 4

When a baker adjusts a doughnut formula for high-altitude baking (above 3,500 feet), which change is most commonly needed?

Accepted Answer

Reduce chemical leavener and increase liquid slightly

Answer

At altitude, lower air pressure causes leavening gases to expand faster, so reducing leavener and adding liquid prevents collapse.

Question 5

Proper storage of bread flour to maintain quality requires:

Accepted Answer

Storage in a cool, dry place in an airtight container away from strong odors

Answer

Flour absorbs moisture and odors easily, so cool, dry, airtight storage preserves quality and prevents off-flavors.

(CDM) Certified Doughnut Maker Practice Test