Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Plastic cap dropped through lid and was pulverized

The second time I used this blender, while I had my hand over the lid as I was pureeing fruit, the plastic cap in the center of the lid fell through the lid and was pulverized by the blades. Based on the other reviews, the blender probably works very well, but I would consider another blender with a more soundly constructed lid.