Knowing when a loaf of sourdough bread is done baking requires some observation and experience. Here are some indicators to help you determine when your sourdough is ready, as well as signs that it may be overbaked:
Internal Temperature: One of the most reliable ways to know if your sourdough is done is to check its internal temperature using an instant-read thermometer. The ideal internal temperature should be around 200°F (93°C). When the bread reaches this temperature, it indicates that the interior has cooked thoroughly, and the loaf is likely done.
Crust Color: A well-baked sourdough loaf will have a deep, golden-brown crust. The crust should be firm and crispy, but not overly dark or burnt.
Tap Test: Gently tap the bottom of the loaf with your finger. If it sounds hollow, it is a good sign that the bread is baked through. A hollow sound indicates that the interior of the loaf has properly set and that the crust has formed well.
Oven Spring: During the baking process, a well-prepared sourdough will experience "oven spring," where the dough rises and expands in the oven due to trapped gases. If you notice a good oven spring, it usually means your bread is baking correctly.
Signs of Overbaking:
Excessive Darkening: If the crust becomes overly dark or almost black, it is a sign of overbaking. This may occur if the bread is left in the oven for too long or at too high a temperature.
Tough and Dry Interior: Overbaked bread can result in a dry and tough crumb texture. The bread may lack moisture and feel stale even if freshly baked.
Bitter Taste: An overbaked loaf can develop a bitter taste due to the caramelization of sugars in the crust.
Thick and Hard Crust: If the crust is too thick and hard, it could be an indication of overbaking. An ideal crust should be crisp but not overly tough or thick.
To avoid overbaking, keep a close eye on your sourdough loaf during the last few minutes of baking. Every oven is different, so baking times may vary. It's essential to get to know your oven and adjust baking times accordingly. Remember, practice and experience will help you develop a better sense of when your sourdough bread is perfectly baked.