Eggs
Authority: American Egg Board (Egg Safety & Handling Guidelines)
Egg dishes like quiche, frittata, and casseroles are safe at a minimum internal temperature of 160°F held for 2 minutes, or 165°F instantly. Store shell eggs refrigerated at 40°F or below, where they keep 4-5 weeks beyond the pack date, and never leave egg dishes at room temperature more than 2 hours (30-60 minutes above 85°F).
| Parameter / Specification | Standard Value | Unit |
|---|---|---|
| Egg Dish Safe Temp (2-min hold) | 160 | °F (71.1°C) |
| Egg Dish Instant-Safe Temp | 165 | °F (73.9°C) |
| Refrigerator Storage Temp | 40 | °F (4.4°C) or below |
| Raw Shell Egg Refrigerated Shelf Life | 4-5 | weeks beyond pack date |
| Max Room-Temperature Time | 2 | hours (30-60 min if 85°F+) |
Why Eggs Need a Different Rule Than Meat
Meat is typically contaminated with Salmonella on its surface, where heat and time act quickly and predictably. Eggs are different: Salmonella Enteritidis can be present inside an intact, uncracked egg, deposited during formation inside the hen rather than picked up afterward, so surface cleaning alone doesn't eliminate the risk. That's part of why egg dishes are held to a specific internal-temperature standard rather than judged by appearance alone.
It's also why preparations that leave yolks or whites runny -- over-easy, poached, soft-boiled, sunny-side-up -- carry more residual risk than fully firm-cooked eggs, and why food safety guidance singles out those styles as ones to avoid for young children, older adults, pregnant women, and anyone with a weakened immune system.
Reading the Egg Safety Numbers
The 160°F and 165°F figures reflect the same time-temperature logic used elsewhere in food safety: 165°F kills Salmonella essentially instantly, while 160°F does the same job if that temperature is held for a full 2 minutes rather than hit and immediately removed from heat. Casseroles, quiches, frittatas, and other baked egg dishes are dense enough that a food thermometer, not a visual check, is the reliable way to confirm either threshold has been reached.
On the storage side, 40°F or below keeps refrigerated eggs out of the temperature range where bacteria multiply quickly, which is also why cooked egg dishes shouldn't sit out longer than 2 hours -- or as little as 30 minutes to an hour on a hot day above 85°F.