Yes, to some extent, soggy bread can become crispy in the toaster. When you toast soggy bread, the heat from the toaster helps evaporate the moisture, which can lead to the bread becoming crisper on the outside.
However, the effectiveness of toasting soggy bread will depend on how soggy it is to begin with and the type of toaster you are using. If the bread is just slightly moist or has a little condensation, toasting it in a toaster might help improve its texture and make it slightly crispy.
On the other hand, if the bread is excessively soggy or soaked with liquids, toasting it in a regular toaster might not be very effective. In such cases, the moisture content may be too high for the toaster to effectively evaporate, and you may end up with bread that is still somewhat soggy or just partially crispy.
If you want to revive soggy bread and make it crispy, you can try toasting it in a toaster oven or a regular oven. A toaster oven provides better control over the toasting process and can help achieve a crispier result. Additionally, you can also consider using a broiler setting in the oven to get a more even and thorough crisping effect.
Keep in mind that the type of bread you use can also impact the toasting results. Some types of bread, like white sandwich bread, tend to toast more effectively and become crispier compared to others like whole grain or multigrain bread.
In any case, when toasting soggy bread, it's a good idea to keep an eye on it and toast it in short intervals until you achieve the desired level of crispiness, to avoid over-toasting or burning.