how long to steam frozen crab legs

For most home kitchens, frozen crab legs take about 7–10 minutes to steam once the water is boiling and producing steady steam, as long as the legs are already pre-cooked (which most store-bought frozen crab legs are).

Quick Scoop

• Pre-cooked frozen snow crab legs: steam 6–8 minutes from frozen until hot and fragrant.

• Pre-cooked frozen king crab legs: steam 8–10 minutes from frozen; the thicker shells need a bit more time.

• Mixed or large clusters (like Dungeness): aim for 8–12 minutes , checking one thick joint for heat all the way through.

• If the crab was thawed first in the fridge, you usually only need 5–6 minutes of steaming instead of the longer frozen times.

A simple way to think of it: once the pot is producing strong steam and you add the frozen legs, set a timer for 7 minutes , then check; if they’re not piping hot and very aromatic, give them another 2–3 minutes.

Easy Step-by-Step Timing

1. Add about 1–2 inches of water (optionally with lemon slices or seasoning) to a pot and bring it to a vigorous simmer so you see steady steam.

2. Place frozen crab legs in a steamer basket (or on a rack above the water) and cover with a tight lid.

3. Start timing once the lid is on and steam returns:
   • Snow crab: 6–8 minutes
   • King crab: 8–10 minutes
   • Big clusters / whole frozen crab: 10–20 minutes depending on size and whether they’re raw or pre-cooked.

4. Check doneness: shells should be bright, meat fully opaque and hot, and steam should smell strongly of sweet crab when you lift the lid.

Tip: If you accidentally overdo it by a couple of minutes, the crab will usually still be fine, just slightly less tender. Better to start on the lower end of the time range and add a minute or two if needed. Information gathered from public forums or data available on the internet and portrayed here.