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What happens to potatoes when they cook?

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When you bake a potato, the starch granules absorb the moisture within the potato. Within the confines of the potato skin, moisture soon turns to steam that expands with great force, separating the starch granules and making a fluffy baked potato.


What happens to potatoes when heated?

Upon heating the potato, the starch granules in the cell will start to absorb more and more water, swelling up as a result. At some point, the starch granules burst. Each starch granule contains a lot of individual starch molecules made up of amylose and amylopectin.

Is cooking potatoes a chemical or physical change?

Potatoes are largely starch; cooking (heating with water) causes chemical changes in the structure of these starches, similar to those that occur in rice (which is almost predominantly starch).

What happens to potato cells when boiled?

As the potato is cooked the cell membrane ruptures; the membrane around the vacuole breaks; the membrane around the starch grain breaks and the starch grain swells up, although it initially remains intact; the cell wall breaks down and the contents, including the starch, begin to disperse.

Do potatoes release starch when boiled?

Boiling peeled potatoes hastens the release of starch. Starch is a carbohydrate found in many foods. It is a white and tasteless substance that can be processed to make numerous products, some of which are sugars, thickeners for foods such as corn starch, and laundry starch.

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