Potatoes do shrink when cooked because they lose the water content. Uncooked potatoes are made of 21% of dry mass, (60-80% of potato mass is starch) and 79% of water. Depending on the cooking method, potatoes can lose anywhere from 2-40% of their weight.
How much does a potato shrink when baked?
As mentioned in the original question, I've found that that when I bake a potato, it shrinks in weight by something between about 15% and 20% of its original weight.
Do potatoes get bigger when cooked?
Do potatoes get bigger when cooked? Waxy or all-purpose potatoes are the best candidates for boiling. They hold their shape when boiled and have a nice creamy texture once cooked. They are also usually smaller — usually no bigger than your fist — and thin-skinned, so they cook more quickly.
What happens to potatoes when they are cooked?
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.
How much weight do potatoes lose when boiled?
When brought to a boil and then tossed in olive oil and roasted in a 450 degree oven, 100 g of potato weighed 77 g after 15 minutes and 51 g after 30 minutes. In the end the mg/g went from . 71 mg/g raw to 1.39 mg/g roasted. ... BOILED.Prep MethodEnd weightEnd mg/gBoiled106g0.66
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