The usual oven temperature for corned beef is 300–325°F (150–165°C) , cooked low and slow until it’s fork‑tender and around 185–195°F internally for best texture.

Quick Scoop

  • Set your oven to 300–325°F. Many reliable recipes use 300°F; others go with 325°F for a slightly faster cook.
  • Cook fat side up in a covered roasting pan or Dutch oven with some liquid (water, broth, or beer) in the bottom so it braises instead of drying out.
  • Plan on about 1 hour per pound at this temperature range, but use tenderness and internal temperature as your real guide.
  • For the best, sliceable but tender result, aim for an internal temp of about 185–195°F , even though corned beef is technically safe at 145°F.

Simple Step‑By‑Step

  1. Preheat oven to 300–325°F.
  2. Rinse and dry the corned beef if very salty; place it fat side up in a roasting pan or Dutch oven.
  1. Add liquid to come about 1 inch up the sides (water, broth, or beer) and sprinkle on the seasoning packet; cover tightly with a lid or foil.
  1. Bake for about 1 hour per pound , checking after 3 hours for smaller pieces; keep it covered so it stays moist.
  1. Start checking tenderness and temperature : a probe should slide in easily, and the center should read around 185–195°F.
  1. Rest 10–15 minutes , then slice against the grain for juicy slices.

A Few Extra Tips

  • If you want some browning, you can uncover for the last 15–20 minutes or briefly broil after it’s tender, watching closely so the sugar or mustard glaze does not burn.
  • Toss carrots, potatoes, and cabbage into the pan for the last 60–90 minutes so they cook in the flavorful liquid without turning to mush.
  • Around St. Patrick’s Day 2026, most popular recipes online are still using this same low‑and‑slow 300–325°F method because it keeps brisket moist and minimizes toughness.

Bottom line: set the oven to 300–325°F, keep it covered with a bit of liquid, cook about an hour per pound, and don’t stop until it’s fork‑tender and around 185–195°F inside.

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