Voltrx protein bottle is the perfect mixture of protein powder, and it is very easy to clean. Almost 99% of the cleaning is only water. If you decide to clean the next day, you only need soap. It is recommended to wash it on the day of use, because the protein powder remains clean after 5 days, which will make the voltrx protein bottle smelly. But if you are an athlete who trains at least three times a week, the time is still very long. I would definitely recommend this brand and voltrx protein bottle people to see a great mixer. The vibrator itself is the best design IMO, because I have used other shapes, and they tend to mix protein powders not very well.