How much weight does pasta gain when boiled? [duplicate]

In the diet my dietetician has prescribed me, I have amount of pasta allowed listed for dry (uncooked) pasta.

This is not a problem if I have the foresight to weigh the pasta before boiling, but it is a problem if I buy a dish with ready-made pasta or forget to weigh it before cooking (or just forget how much I had measured, and didn't write down).

Can you give me a rule of thumb / estimate, how much 75g of dry pasta weighs after it's boiled?

pasta dietary-restriction

Best Answer

The accepted answer to the question about a closely related matter: "how much water does pasta absorb", to obtain its result goes through a calculation involving direct answer to my question.

100g dry pasta turns into 100g*75/31 = 242g of cooked pasta.

and

The estimate below from the nutrition facts is 1.4x, which probably corresponds to typical American overcooked pasta - a surprisingly large difference from mine. I'm guessing you'll be somewhere between, maybe 1.25x.

Obviously getting the amount of pasta+water involves simply increasing these factors by 1, so al dente will weigh 2.25x the original, and 'typical American overcooked pasta' will be 2.4x the original weight.

For my allowance of 75g that gives me 180g of "overcooked" pasta or 170g of al dente.

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Does pasta get heavier when boiled?

Pasta and rice however get HEAVIER when cooked because they take on water. Now, the calories don't change when food is cooked. 100g of dry, uncooked pasta won't 'gain' any calories as it's cooked, but it will increase in weight (pasta generally doubles in weight when cooked).

How much does pasta increase in weight once cooked?

When 100g of dry, uncooked pasta is cooked, it will not 'gain' any calories, but it will increase in weight by a factor of two (pasta generally doubles in weight when cooked). Thus, 100g of dry pasta does not equal 100g of cooked pasta, and vice versa. However, 100g of cooked pasta was equivalent to 50g of dry pasta.

Does pasta double in size when boiled?

Depending on the shape, pasta will approximately double in size when cooked, so the amount of cooked pasta can vary. For smaller shapes like penne, elbows, rotini, and bowties, approximately \xbd cup of dry pasta is two ounces, so that's a good rule of thumb. A 12 ounce box of these shapes will have six servings.

How much does 75g pasta weigh when cooked?

75g of uncooked pasta weighs approximately 170g when cooked.