Along with being unpleasant, mildew is potentially hazardous to respiratory health. This fungal growth thrives in warm, damp places and carelessly attaches itself to any surface it can find that happens to boast the right climate. Mildew on blankets is not only disgusting, but also unhealthy. If you've already removed the mildew, but the odor just won't quit, it doesn't necessarily mean the blanket is ruined. Getting rid of that stench just requires a little ingenuity.
Visually inspect the blanket to make sure there are no remaining mildew spores on it. If there are, brush them away with a cloth or brush over the trash can or outside to prevent the spores from becoming airborne in your home.
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Pretreat all mildew stains. Squeeze lemon juice directly on the entire stain and sprinkle table salt over the whole area. Scrub the salt into the fabric with a clean cloth or sponge and allow the blanket to sit outside in the sunshine for four to five hours.
Wash the blanket in the hottest water possible and add a cup of white vinegar to the rinse cycle. Omit the detergent.
Wash the blanket a second time with detergent. Using a scented detergent such as Mrs. Meye'rs Clean Day can give your blanket a pleasant new aroma.
Add liquid fabric softener during the rinse cycle per the directions on the label.
Hang the blanket outside to dry in the sunshine if possible. If weather doesn't permit that, put the blanket in the dryer on the hottest setting possible.