US Thanksgiving turkey needs about 1 day of fridge thawing per 5lb, so start 3 days ahead for 15lb

A 15lb turkey thawing slowly in the fridge takes about 3 days. In other words, for the US Thanksgiving dinner on Thursday 26 November 2026, thawing should begin on Monday 23 November.

The sum comes from holiday food safety advice issued on 20 November 2025 by the Health and Social Services department of Sacramento County, California: fridge thawing takes about 1 day per 5lb. CBS Detroit, on 23 November 2022, relayed advice from the US Centers for Disease Control and Prevention (CDC) with similar points: thaw safely, refrigerate leftovers within 2 hours, and bring stuffing and reheated leftovers to 165F (about 74C). This article draws on those two sources, with information as of November 2026.

Three ways to thaw, three speeds

The two sources describe three safe thawing methods, and their speeds differ widely.

• Fridge thawing: the least effort and the slowest. Sacramento County says about 1 day per 5lb, so about 3 days for 15lb.
• Cold-water thawing: the turkey must be fully submerged in cold water. Sacramento County says to keep it in its original wrapping and change the water every 30 minutes; CBS, relaying the CDC, says to use a leak-proof bag. The CBS figure is about 30 minutes per pound, so about 7.5 hours for 15lb.
• Microwave thawing: neither source gives a time. Sacramento County says to follow the microwave's manual, while CBS, relaying the CDC, says to cook immediately after thawing.

According to the CDC advice relayed by CBS, a turkey thawed in cold water or the microwave must be cooked immediately. Both methods are quick, but leave no room for delay.

165F: check with a thermometer

Sacramento County advises using a food thermometer on the breast, thigh, wing joint and stuffing, each reaching at least 165F. CBS, relaying the CDC, also says stuffing and reheated leftovers must reach 165F.

Two hours: the refrigeration limit for leftovers

The two sources agree: perishable or cooked food should go into the fridge within 2 hours. CBS, relaying the CDC, adds that if food has been in an environment above 90F (about 32C), the limit drops to 1 hour. Large pieces of turkey should be cut into smaller pieces so they cool faster.

On fridge temperature the two sources differ slightly: Sacramento County says 41F or below, while CBS, relaying the CDC, says 40F or below. Both are roughly 4 to 5C.

How long leftovers keep

Under Sacramento County's guidance, cooked turkey, side dishes and gravy keep for 3 to 4 days in the fridge. CBS, relaying the CDC, says the same and adds that keeping food longer means freezing it.

A countdown for busy hosts

The example below uses a 15lb turkey and the ratios above. For a heavier or lighter bird, adjust at about 1 day per 5lb in the fridge or 30 minutes per pound in cold water.

1. Monday 23 November: put the turkey, still wrapped, in the fridge to start thawing.
2. If it is still not thawed before 26 November, switch to the cold-water method, allow about 7.5 hours, change the water every 30 minutes, and cook immediately after thawing.
3. On 26 November: have a food thermometer ready and check the breast, thigh, wing joint and stuffing, each reaching at least 165F before serving.
4. Within 2 hours of the meal: cut the remaining turkey into small pieces and refrigerate it with the side dishes and gravy.
5. By about 29 to 30 November: finish the refrigerated leftovers, or freeze them; reheated leftovers and stuffing must also reach 165F.

Food safety note: raw turkey is raw poultry and must be cooked thoroughly; it should not be eaten before reaching 165F. This article offers general lifestyle information only. The figures come from a local health department and from media relaying CDC advice, so check the latest version on official US food safety websites before cooking.

Sources

• Sacramento County Health and Social Services, "Pass the Pie, Not the Pathogens", 20 November 2025, https://www.saccounty.gov/us/en/articles/2025-articles/pass-the-pie-not-the-pathogens.html
• CBS News Detroit, "CDC: how to safely prepare your Thanksgiving turkey", 23 November 2022, https://www.cbsnews.com/detroit/news/cdc-how-to-safely-prepare-your-thanksgiving-turkey

Prices and details correct as of November 2026

Any recipe amounts, temperatures and times are compiled from several sources and are a guide only. Take food-safety care with raw, allergenic or high-risk ingredients.