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How much does black beans weigh after cooking?

100 g → 240 g

100 g dry → 240 g cooked. Soak 8 hours, then simmer 60 to 90 minutes.

Your portion

100 gDry
240 gCooked
341Calories
21.6 gProtein
62.4 gCarbs
1.4 gFat

Calories and protein stay the same when cooking; only water weight is added.

Per 100 g: raw vs cooked

Per 100 gDry (raw)CookedChange
Calories341142−58%
Protein21.6 g9 g−58%
Carbs62.4 g26 g−58%
Fat1.4 g0.58 g−58%
Fiber15.5 g6.5 g−58%

Cooking adds water, not calories. Black Beans soaks up about 140% of its own weight in water, so 100 g of cooked black beans has only about 42% of the calories and protein of 100 g dry. Weigh it dry if you can. If you weigh it cooked, divide by 2.4 to get the dry weight.

Common questions

Should I weigh black beans raw or cooked?

Raw (dry) is more accurate because cooked weight depends on how much water was absorbed. Labels and USDA data use the dry weight.

How much protein is in 100 g of cooked black beans?

About 9 g, compared with 21.6 g in 100 g dry.

I weighed my cooked portion. How do I log it?

Divide the cooked weight by 2.4 to get the dry weight, then log that.