Some people who use front-loading washing machines wash their clothes only to find that their clothes are covered with black mould from the gasket in their washing machine. This is a common problem with front loading machines. The moisture and warmth from the machine promotes the growth of mould spores on the gasket. The same problem can occur on your refrigerator gasket. The solution is to remove the mould. You can do this with three different cleaning solutions: hydrogen peroxide, bleach or WD-40.
Fill a spray bottle with hydrogen peroxide, and spray it on the mouldy gasket. Leave the spray on for five minutes. Wipe off the mould with a dry cloth. Wipe the gasket with a damp cloth to remove the hydrogen peroxide.
Pour one part bleach and two parts water into a spray bottle. Spray the solution on the mouldy gasket, and allow it to set for five minutes. Wipe away the mould with a dry cloth. Wipe the gasket with a wet cloth to remove the bleach.
Spray WD-40 on the mould, and let it sit for five minutes. Wipe off the mould with a dry cloth. Clean off the WD-40 with a damp cloth and a mild cleaning solution like water and vinegar.
Wipe white vinegar with a rag around your gasket to ward off future mould growth.
Wear rubber gloves when spraying the cleaning solutions, and be careful not to get them into your eyes or breathe them into your lungs Take caution when spraying the bleach solution that you don't spray your clothing.