How to get rid of black mold on rubber stopper
1. Find a bottle of Haiter or liquid detergent containing 6% Sodium Hypochlorite.
2. Soak the rubber stopper in the laundry detergent for 15 minutes.
3. Or left for longer until the black marks from the fungus disappear
4. Wash the rubber stopper thoroughly with dishwashing liquid. And wash many water Cycle so as not to have pesticide residues Will be assured that it is not dangerous