24 hours. Start the brine 24 hours before the turkey goes in the oven. Never longer than two days. Worked example: a 16 lb turkey for a 5 PM Thanksgiving dinner on Thursday, November 26, 2026 starts brining on Wednesday, November 25, at 12:40 PM.
For a 5 PM Thanksgiving dinner on Thursday, November 26, 2026:
| Weight | Start brining |
|---|---|
| 12 lb | Wednesday, November 25, 1:47 PM |
| 16 lb | Wednesday, November 25, 12:40 PM |
| 20 lb | Wednesday, November 25, 12:17 PM |
| 24 lb | Wednesday, November 25, 11:55 AM |
Brine in the fridge the whole time, at 40 F or below. Never longer than two days. Discard the brine after. Start once the bird is thawed.
Keep the fridge at 40 F or below, on a tray, in its wrapper.
| Weight | In the fridge | Move it for Thanksgiving 2026 | In cold water |
|---|---|---|---|
| 12 lb | 3 days | Monday, November 23 | 6 hours |
| 16 lb | 4 days | Sunday, November 22 | 8 hours |
| 20 lb | 5 days | Saturday, November 21 | 10 hours |
| 24 lb | 6 days | Friday, November 20 | 12 hours |
If it is still icy at brine time, use a shorter brine once it thaws, or skip the brine. A last-day cold-water rescue leaves no room for a full 24 hour brine.
Finishing a thaw in cold water: Seal the bird in a leak-proof plastic bag. Submerge it in cold tap water. Change the water every 30 minutes. Cook it right after it thaws. Full steps: thawing a turkey in cold water.
USDA's third safe way is the microwave: follow your oven manual for size and timing, and cook the turkey right after it thaws. Never thaw a turkey on the counter. The outside warms up hours before the inside thaws. Bacteria grow in that warm layer.
Tell the calculator your weight and dinner time, and say yes to the brine. It stamps both dates. Or ask in your own words: "16 lb frozen turkey, brine it, dinner Thursday."