Lobster tails usually cook in 5–15 minutes depending on size and method, and they are done when the meat is opaque and the internal temperature reaches about 135–140°F.

Key cook times

  • Boiling: 5–7 minutes for 6–7 oz tails, 7–9 minutes for 8–10 oz tails in salted boiling water, timing from when the water returns to a boil.
  • Steaming: About 6–8 minutes for medium tails; slightly longer (8–10 minutes) for 8–10 oz.
  • Baking (350°F): 10–12 minutes for 6–7 oz, 12–15 minutes for 8–10 oz after butterflying and brushing with butter.
  • Broiling (high): 4–6 minutes for smaller tails, 6–8 minutes for 8–10 oz, watching closely to avoid overcooking.
  • Grilling: Around 6–8 minutes total for medium tails over two-zone heat.
  • Air frying (~380°F): Around 6–10 minutes depending on size, checking for doneness early.

Doneness and safety tips

  • Aim for about 135–140°F internal temperature in the thickest part of the tail; the meat should be firm, white/opaque with no translucent spots.
  • Remove from heat as soon as it hits target temperature because carryover cooking will raise it a few degrees.
  • If unsure, err slightly under and check again after 30–60 seconds, since overcooked lobster quickly turns tough and rubbery.

Simple step-by-step (boiled tails)

  1. Fill a large pot with well-salted water and bring to a rolling boil.
  1. Add thawed lobster tails and start timing once the water returns to a boil.
  1. Cook by size (for example, 6–7 oz: 5–7 minutes; 8–10 oz: 7–9 minutes).
  1. Remove tails and briefly dip in an ice bath (10–30 seconds) to stop cooking.
  1. Split shells, drizzle with warm garlic butter and lemon, and serve.

Quick “rule of thumb”

  • For typical 6–8 oz lobster tails:
    • Boil/steam: about 6–8 minutes.
* Bake at 350°F: about 10–12 minutes.

* Broil on high: about 4–6 minutes.

Information gathered from public forums or data available on the internet and portrayed here.