My-Cap reusable capsule is made of polypropylene. There are two (top and bottom) 304 stainless steel screens used to filter out the coffee grounds. In addition, there is a o-ring made of out silicone rubber used with later model Nespresso ® brewers.
Keurig ® and K-Cup ® are registered trademarks of Keurig, Inc. a subsidiary of Green Mountain Coffee Roasters, Inc.
Nespresso ® and Dolce Gusto ® are registered trademark of the Nestle Group, Tassimo ® and T-Disc ® are registered trademark of Kraft Foods.
My-Cap is not Affiliated with GMCR, Keurig, Nestle, or Kraft Foods.