A white mink coat can become yellowed over time if not cared for properly. The best way to care for a mink coat is to store it out of direct sunlight during the summer, and to have it professionally cleaned at the end of each season. The mink should be stored away from other clothing and never placed in a plastic bag. The ideal temperature for a mink coat is between 40 and 60 degrees Fahrenheit. If you cannot find a professional furrier, you can attempt to remove the yellowing yourself. However, this is a risky procedure that may damage the mink coat.
Create a mixture of one part hydrogen peroxide and one part water. Soak a soft cloth in the mixture and wring out the excess water from the rag.
Apply the mixture to a small corner of the mink coat to check for signs of damage. Rub the cloth in the direction that the fur lays naturally so that you do not pull the fur out of the coat lining.
Hold the rag in place against the coat for about one minute. Remove the rag and inspect the coat for signs of damage and to check if the yellowing has disappeared. If the fur is not damaged, you can proceed to clean the rest of the fur in the same manner.
Hang the coat in a dark closet that is well aerated to dry. If you do not have air flow in your closet, you can place a small fan in there to dry the mink coat.
If this concentration of hydrogen peroxide does not have any effect on the yellowed coat, you can try a more concentrated amount of hydrogen peroxide. As always, test the solution on a less visible area of the coat before attempting to bleach the entire coat to prevent damaging the fur.