Yes, you can put dates in a blender. Dates are a type of fruit that can be used in many different recipes, including smoothies and shakes. When blending dates, it is important to add enough liquid so that the blades can properly chop up the fruit. If you find that your blender is struggling to blend the dates, you can soak them in water for a few minutes beforehand. This will help to soften them and make them easier to blend.