If you have a blender that is old and no longer chopping or pureeing at its best, consider sharpening the blender blades instead of replacing them or buying a new blender. Blender blades are made of metal and can be easily sharpened using the correct method and tools.

Do blenders have sharp blades?

Most blenders have extremely sharp blades that can cause significant harm if not handled appropriately.

Does ice really sharpen blender blades?

Unless you have a high-powered blender that's up to the challenge, putting ice cubes in your blender can dull the blade. ... Use slightly thawed fruit (ten minutes out of the freezer should do the trick) or crushed ice instead.