For safety, corned beef should reach at least 145°F (63°C) internally and then rest for 3 minutes, but for the classic tender, sliceable texture you actually want to cook it much higher, to about 190–205°F (88–96°C).

Food-safety vs tenderness

  • Minimum safe temperature: 145°F with a brief rest is enough to make corned beef safe to eat, according to food-safety guidance.
  • Best eating quality: Because corned beef is usually brisket (a very tough cut), most cooking guides recommend taking it to around 190–205°F so the connective tissue fully breaks down and the meat becomes tender.

Practical target ranges

  • “Just tender / sliceable” corned beef: Aim for about 190–195°F internal.
  • Extra soft / very tender: Aim closer to 200–205°F internal; many recipes and chefs use this range for that falling-apart tenderness.
  • Rule of thumb: Check with an instant‑read thermometer in the thickest part and also test with a fork; it should slide in with little resistance when it’s ready.

Different cooking methods (same internal temp)

No matter whether you simmer, braise in the oven, use a slow cooker, or a pressure cooker, the internal goal stays the same:

  • Stovetop simmer or oven braise: Low and slow until the center hits about 190–205°F and is fork‑tender.
  • Slow cooker: Cook on low or high until at least 160°F for safety, then continue to around 190°F for optimal tenderness.
  • Pressure cooker: Time‑based recipes still expect the meat to end up at a similar tender range once done (around 190°F and fork‑tender).

Quick answer for your post

If you need a concise line for your article:

The internal temperature of corned beef should be at least 145°F (63°C) for safety, but for that classic tender texture, cook it low and slow to about 190–205°F (88–96°C) before slicing.

TL;DR: Safe at 145°F, but cook to 190–205°F if you want it truly tender and delicious.

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