The Worlds Smartest Shaker with 2-3 Storage Compartments. Ronnie Coleman Smart Shake is a high quality BPA & DEHP free plastic shaker bottle that contains additonal storage compartments for storing nutritional supplements such as protein, creatine, vitamins, pre & post workout supplements, and generally anything! SmartShake is safe to use in the microwave, freezer & dishwasher. And is safe for hot liquids up to the temperature of 120 degrees. SmartShake utilizes a concave strainer that mixes powders with liquid perfectly. The strainer snaps tightly onto the lid so there is no mess or fuss when lifting the strainer/mixer.