Allow about 24 hours in the refrigerator for every 5 pounds, so a 10-pound brisket needs about 2 days. Cold water is faster (about 2 to 3 hours for 3 to 4 pounds; longer for a whole brisket), changing the water every 30 minutes.
- In the fridge
- About 24 hours per 5 lb, so a…Safest; plan ahead
- Cold water
- About 2-3 hours for a 3-4 lb…Change water every 30 min
- Microwave
- YesCook right away
- Cook from frozen
- YesAbout 50% longer
Thawing times from USDA FSIS. Checked .
How to thaw a brisket: every safe method
| Method | Time | Notes |
|---|---|---|
| Refrigerator | About 24 hours per 5 lb, so a 10-lb brisket needs about 2 days | Use within 3-5 days after thawing |
| Cold water | About 2-3 hours for a 3-4 lb package; larger cuts take longer | Seal in a leak-proof bag, submerge in cold tap water, change the water every 30 minutes, and cook immediately. |
| Microwave | OK | Only if it fits and thaws evenly; follow the oven manual and cook immediately. |
| Cook from frozen | OK | Safe to cook from frozen; it takes about 50% longer than thawed or fresh (FSIS). |
After it's thawed
Fridge-thawed: use within 3-5 days after thawing. Food thawed in the refrigerator can be refrozen without cooking (some quality loss); food thawed in cold water or the microwave must be cooked before refreezing, and anything left out over 2 hours should not be refrozen.
Never thaw it this way
- On the counter / at room temperature: The outer layer warms into the 40-140°F (4-60°C) danger zone, where bacteria multiply rapidly, while the center is still frozen.
- In hot water: Same problem: the surface sits in the danger zone. FSIS's cold-water method uses cold tap water changed every 30 minutes.
Questions people ask
How long can a thawed brisket stay in the fridge?
Refrigerator-thawed beef cuts keep 3 to 5 days before cooking.
Can I smoke or cook a brisket from frozen?
FSIS says cooking from frozen is safe, with about 50% longer cooking time.
How long to thaw brisket?
Allow about 24 hours in the refrigerator for every 5 pounds, so a 10-pound brisket needs about 2 days. Cold water is faster (about 2 to 3 hours for 3 to 4 pounds; longer for a whole brisket), changing the water every 30 minutes.
How long does it take to thaw a brisket?
Allow about 24 hours in the refrigerator for every 5 pounds, so a 10-pound brisket needs about 2 days. Cold water is faster (about 2 to 3 hours for 3 to 4 pounds; longer for a whole brisket), changing the water every 30 minutes.
How long does it take to defrost a brisket?
Allow about 24 hours in the refrigerator for every 5 pounds, so a 10-pound brisket needs about 2 days. Cold water is faster (about 2 to 3 hours for 3 to 4 pounds; longer for a whole brisket), changing the water every 30 minutes.