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 a recessed region at the bottom of a base of the holder and is insertable into a cartridge housing of a single serving coffee maker having an offset needle reaching up vertically from the base of the housing , the recessed region may be a large annular recessed region or a smaller off - center recessed region thereby avoiding the offset bottom needle . the coffee holder defines a frustoconical exterior and includes mesh filtering material for retaining brewing material inside the 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 .