A mixing funnel for mixing fluids is provided. In one embodiment, the mixing funnel includes a tray having a fluid inlet arranged to receive a primary fluid flow, and first and second fluid passages configured to receive primary fluid flow from the fluid inlet such that the flow is divided to flow along the first and second fluid passages. The first and second fluid passages can be arranged to direct the primary fluid flow to a mixing area. The tray can further include a fluid outlet arranged to receive the primary fluid flow from the mixing area and to deliver the fluid to a container.