A single serving beverage filter cartridge is formed by placing a single serving portion of brewing material into a reusable coffee holder having a lid and a base. The reusable coffee holder includes an offset passage in the bottom of the base and is insertable into a cartridge housing of a single serving coffee maker having an offset bottom needle reaching up vertically from the base of the housing, the offset passage providing clearance for the offset bottom needle. The coffee holder defines a frustoconical exterior and includes mesh filtering material for retaining brewing material inside the reusable coffee holder. The mesh material may be a metal mesh or plastic mesh. The reusable coffee holder is configured for use in single serving coffee makers having the offset bottom needle and designed for single use cartridges.