Apparatus and system for mixing and dispensing accurately pre-measured powdered material. The apparatus comprising of a cap, a dispensing teat or similar, a screw down top with a fixed or removable plate insert, a powder keg and a bottle or similar, together with a system, wherein by rotating a screw down top with a fixed or removable plate insert engages a pre-sealed powder keg containing accurately pre-measured powdered material which acts to open and release the accurately pre-measured powdered material into a volume of liquid or similar.
