So..der Blenders Russell Hobbs is doing what he should and mix indeed. Normal fruits such as strawberries, apples etc. work great. For smoothies with spinach or the like, however, the mixer is not suitable. However, the quality is not necessarily good. The first has kept ~ 4 months, this has suddenly just stopped. I thought I might have caught a Monday product and replace it read to me. Everything completely fix without complications. But now the second decided out of the blue to give up. I find it very unfortunate and I will me the next time a device with a higher quality purchase. Unfortunately not recommended.