FDA Certification Pepper Spice Salt Mill Grinder Ceramic Grinding Stone. FDA Certified Material: Made of 95% alumina ceramic, suitable for food grinding applications. Super Long Service Life: High wear resistance and corrosion resistance ensure durability. Customized Service Available: OEM, ODM, prototyping, and trial orders are supported. Free Samples Supported: Customers can request free samples before placing an order. High Hardness & Strength: Features 1700 HV hardness and high flexural strength for efficient grinding. Reusable Design: Alumina ceramic cores are designed for multiple uses unlike disposable steatite. 15+ Years Experience: Manufacturer has over 15 years of experience in ceramic grinding cores. Enhanced Flavor Retention: Freshly ground spices provide stronger flavor and reduce waste.