Cooked potatoes do weigh less than raw because the cooking process eliminates a portion of water from the potatoes together with minerals and vitamins, therefore it is losing their weight.
How much does 100g potato weigh when cooked?
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. When boiled, the potato got heavier as it absorbed more liquid while it cooked.
Do potatoes change weight when baked?
If you start with a raw potato weighing 200g, the actual potato will still contain the same amount of calories after baking, but will weigh less. ... But because baking has caused water loss, the weight of the potato is now only 110g. So if using the baked figure, you would enter 110g = 150 kcals.
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