Shaker cups are commonly used by fitness enthusiasts to hold water, but they should not be used for hot water. Although the body is made of heat-resistant material, the rim is made of rubber, which is not heat-resistant.
Putting hot water in the rim will cause the rubber to age, reducing the cup's seal and allowing water to leak out, which is quite troublesome.
These cups are popular among fitness enthusiasts because they are convenient and allow them to replenish fluids after exercise. Shaker cups also have a spring, which helps to stir the mixture evenly. When you use this cup to prepare any beverage, the spring helps to mix the contents thoroughly.
