It is recommended to use the Stericup for volumes of up to 1.5 ml; the Maxicup is used to prepare liquids of a larger volume.
Fingers should never touch the inside of the Maxicup. Any bacteria, fungi or viruses present on the surface of the skin may contaminate the solution. The HCV virus can survive in traces of blood present on the skin or any surface, even if they are invisible.
Never reuse, share or draw-up after someone else. Even if it has been cleaned, the spoon can still contain viruses from someone else's syringe, filter, water or fingers.