Classic, unsweetened fresh brew;Iced Tea;Rainforest Alliance Certified;Orthodox Union Kosher;The K-Cup pack is a patented, airtight container that locks out oxygen, light and moisture while locking in freshness and flavor;K-Cup packs are compatible only with Keurig K-Cup brewing systems;Brewing occurs inside the K-Cup so no flavor residue is left behind to spoil the next cup