[ material] The whey separator is made of high-quality pp+ stainless steel material. [Portable design] The yogurt filter is small and portable, can be put in the refrigerator, and can be used to filter coffee, tea, fruit or yogurt, etc. This Greek yogurt machine can be used to filter nut milk, juice and yogurt. [Wide range of uses] This Greek yogurt machine can be used to filter nut milk, juice and yogurt. It can also be used as a tea strainer. [Easy to clean] The separation design is easy to clean and not easy to leave residue. The yogurt filter is reusable.