The best way to cool down paste before blending is to spread it thinly on a baking sheet and let it cool at room temperature, or to place it in the refrigerator for faster cooling. This prevents damage to your blender and ensures a smoother blend.
Blending hot paste can be problematic for several reasons. First, the heat can damage the blender's plastic components, especially if the blender jar is also plastic. Second, the steam created by blending hot liquids can build up pressure inside the blender, potentially causing the lid to pop off and splattering hot paste everywhere. Finally, blending hot paste can alter its texture and flavor, sometimes resulting in a less desirable final product.
Here's a step-by-step guide to cooling down paste effectively:
Avoid adding ice directly to the hot paste to cool it down, as this can dilute the flavor and change the consistency. If you're in a real hurry, consider using an ice bath: place the container of paste (make sure it's heat-safe) in a larger bowl filled with ice and water, stirring occasionally to promote even cooling.