The Keurig Platinum brewing system uses regular K-Cups. Keurig offers over 250 varieties of K-Cup packs, as of 2015. These packs are available for purchase directly from its website, through online retailers or in-store at a variety of national retailers.
According to Consumer Reports, a year's worth of K-Cups for a cup-a-day drinker costs more than $200. In addition to regular K-Cups, Keurig offers the K-Cup adapter for use with its brewing systems, including the Platinum. This adapter allows the consumer to fill a reusable cup with his choice of coffee grounds in place of a traditional K-Cup. However, for best results, Keurig recommends using its patented K-Cups in the Platinum brewing system.