CPM Fruit Filling Thickeners & Ratios 2

Question 1

Which thickener produces the clearest, most translucent fruit pie filling?

Accepted Answer

Arrowroot starch

Answer

Arrowroot starch produces a very clear, glossy gel, making it ideal when visual clarity of the filling is important.

Question 2

Why does arrowroot starch lose its thickening power if a pie filling is overcooked?

Accepted Answer

The starch granules break down and the gel liquefies

Answer

Arrowroot starch granules rupture under prolonged high heat, causing the gel network to collapse and the filling to thin out.

Question 3

Which thickener is most recommended for fruit pie fillings that will be frozen and then baked?

Accepted Answer

Instant ClearJel

Answer

Instant ClearJel is a modified food starch that remains stable through freezing, thawing, and baking without becoming watery or spongy.

Question 4

What is the primary drawback of using all-purpose flour as the sole thickener in a fruit pie filling?

Accepted Answer

It can impart a raw, starchy taste if underbaked

Answer

Flour must be fully cooked to eliminate its starchy, raw flavor, so underbaking a flour-thickened fruit pie will leave an off-taste in the filling.

Question 5

Compared to cornstarch, roughly how much instant tapioca starch is needed to achieve equivalent thickening in a fruit filling?

Accepted Answer

About 25–33% more

Answer

Instant tapioca has slightly less thickening power per tablespoon than cornstarch, so recipes typically call for about 25–33% more tapioca by volume.

(CPM) Certified Pie Maker Practice Test