Review on 🍹 Yabano Personal Blender - 500W Single Serve Blender for Shakes and Smoothies with 2 x 20oz Travel Bottle and Coffee/Spices Jar - Portable Smoothie Blender and Coffee Grinder in One - BPA Free by Mary Campbell

I make smoothies with frozen berries, frozen bananas, spinach, and flaxseeds, and then almond milk. It says no more than 60 seconds due to possible overheating. It will not mix during this short time. I stir a little, then take out the bottle, shaking it so the contents fall from top to bottom. I do this multiple times for a complete mix. He never overheated; it gets warm, but that's okay. This may be different if you use fresh fruit. The cups are good; It has a rubber grip, which is good because it's easier to hold due to condensation. They can be washed in the dishwasher, but I hand wash them so they last longer. If you wash by hand, you need a bottle brush, since it is very difficult to use a regular sponge. It's good quality but needs a bit of blending. Will definitely use it, hope it lasts.