A food can look fully cooked and still be unsafe. Color and texture are not reliable. A food thermometer is the only way to know a food has reached a safe internal temperature.

Quick Reference
From FoodSafety.gov, the combined CDC, FDA, and USDA guidance for consumers. These four lines cover most weeknight cooking.
| Food | Safe Internal Temperature |
|---|---|
| All poultry | 165°F |
| Ground beef, pork, veal, lamb | 160°F |
| Beef, pork, veal, lamb (steaks, chops, roasts) | 145°F + 3-minute rest |
| Fin fish | 145°F |
These temperatures are intended for food preparation in the home. Commercial foodservice establishments should follow the applicable state or local food code.
Using a Food Thermometer
Placement decides whether the number you read means anything.

Hot Tip
If you are not serving hot food right away, keep it at 140°F or above.
Cooking Methods
Each method has its own quirks. Follow these tips to cook food safely.

Source: USDA FSIS

Source: USDA FSIS

Source: USDA FSIS
The Bottom Line
Browning, firmness, and clear juices are not proof that food is safe. Check the temperature, in the thickest part, and wait for the reading to steady.