When the weather turns cold and damp, you may find that your favorite winter outerwear and ski clothing may have mildew stains and musty odors. Although some polyester or nylon ski jackets may not be machine washable, there's no need to throw out these items just because of a mold stain. In fact, you can remove mold stains from your ski jackets by using the proper products and cleaning methods.

Put on rubber gloves and take the jacket outside. Brush the molded area of the jacket with a stiff brush to remove as much mold as possible.

Pour lemon juice onto the mold stain. Sprinkle table salt over the lemon juice. Lay the ski jacket in the sun to dry. Sunlight is a natural mold inhibitor.

Moisten a rag with plain water. Wipe the salt and lemon juice from the jacket, along with any mold residue.

Use hydrogen peroxide if the mold stain persists. Saturate the molded area of the jacket with 1 to 3 percent strength hydrogen peroxide.

Allow the hydrogen peroxide to sit on the jacket for a few minutes. Wipe the area clean with a rag and plain water.

Apply a borax solution if the mold is still on the ski jacket. Mix ½ cup borax powder and 2 cups hot water in a bowl.

Dip a sponge into the borax and hot water mixture and wring it out lightly. Rub the solution onto the moldy area of the jacket so that there is a pool of solution over the stain.

Allow it to soak into the jacket for several hours, then wipe clean with a rag and plain water.