Espro 8 Ounce Vacuum Insulated Stainless Steel Press The two patent-pending filters get beneath the grinds and filter twice, leaving all of the flavor and none of the grit The double lip seal prevents grinds from sneaking past the micro-filters, and the buffer between the filters prevents over-extraction after brewing The vacuum insulated double walls maintain stable temperature during the brew and keeps coffee hot for hours Filters are BPA, BPS and phthalate free, made from USA manufactured materials in Canada Top rack dishwasher safe or hand wash with bottle brush