Crab: boil (whole/legs) for 5–7 min (pre-cooked) / 15–18 min (live) (Rolling boil, heavily salted). Internal temp: 145°F / 63°C.
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Safe Internal Temp
145°F / 63°C
Cooking Methods
↕ Slide the temperature to see how cook times change
Rolling boil, heavily salted5–7 min (pre-cooked) / 15–18 min (live)
✎ Pre-cooked just needs reheating. Live: 15–18 min.
Food Safety
Most crab you buy is already pre-cooked — you're just reheating to 140°F. For live crab, cook until the shell turns bright red and the internal temp reaches 145°F. Live crab should be cooked the same day it's purchased. If buying frozen crab legs, thaw in the fridge overnight, not at room temperature.
Frequently Asked Questions
What are the best tips for cooking crab?
Most crab sold is pre-cooked — you're just reheating. Live crab goes in boiling water headfirst. Serve with drawn butter and lemon.
What internal temperature should crab reach?
Most crab you buy is already pre-cooked — you're just reheating to 140°F. For live crab, cook until the shell turns bright red and the internal temp reaches 145°F. Live crab should be cooked the same day it's purchased. If buying frozen crab legs, thaw in the fridge overnight, not at room temperature.
How do you boil (whole/legs) crab?
Boil (whole/legs) at 5–7 min (pre-cooked) / 15–18 min (live). Pre-cooked just needs reheating. Live: 15–18 min.
How do you steam (legs) crab?
Steam (legs) at 5–7 min (pre-cooked). Best for pre-cooked legs. Doesn't waterlog.
How do you roast (legs) crab?
Roast (legs) at 18–15 min. Brush with garlic butter. Pre-cooked only.
How do you grill (legs) crab?
Grill (legs) at 5–7 min, turning. Pre-cooked. Brush with butter. Smoky flavor.
