What happens if you heat raisins?

When you heat raisins, they can undergo a transformation that affects their texture and flavor. The heat causes the sugars within the raisins to caramelize, enhancing their sweetness and producing a richer flavor profile. Additionally, the moisture in the raisins can evaporate, making them slightly chewier and more concentrated in taste. If heated for too long, however, they may become tough or burnt.