What is a common sign that baked bread has reached the right internal temperature?

A hollow sound when tapped is a reliable indicator that baked bread has achieved the right internal temperature and is fully cooked. This characteristic occurs because the structure of the bread has developed properly during baking. When the loaf is tapped, the sound indicates that there is enough air space inside, suggesting that it has risen appropriately and that moisture levels have been balanced.

The other indicators—such as a soft crust, golden color, and crumbly texture—can be influenced by various factors, including baking time and ingredients, but do not definitively communicate the readiness of the bread. A soft crust might indicate underbaking or a specific type of bread that is meant to remain soft, while a golden color can vary based on the recipe and the type of flour used. Crumbly texture, on the other hand, might suggest overmixing or improper hydration rather than a sign of doneness. Therefore, the hollow sound is the most reliable indicator of proper baking.