There are few things people love more that burrowing under a warm, soft blanket when winter temperatures take a dip, so why are they willing to turn their blankets into popsicles? It turns out that draping your blanket over a deck or some other object outside is actually a Nordic tradition. Airing out bedding outdoors in the cold is the best way to refresh them naturally. It’s less about killing germs and more about letting nature do a little reset. The practice has been used across Scandinavia for generations as a natural way to reduce odors and fresh textiles during long, frigid winters. Cold air can make blankets feel crips, and it definitely helps tame that musty “been in storage” smell. Freezing makes odor molecules less volatile and, therefore, less noticeable. It can also help with dust mites, since they don’t love extreme cold. You won’t totally eliminate them, but you can definitely lower their numbers. Airing out blankets outside also is a nice sensory refresh, especially for people who are hot sleepers or have pets. Does freezing a blanket actually lessen bacteria? Not in any meaningful, lasting way. Common bacteria doesn’t die at freezing temperatures, though their function can slow down or temporarily stop. The best way to freeze a blanket is start with a dry blanket, as a damp blanket will just freeze solid. Since airflow is key, use a sturdy clothesline, porch railing or balcony edge. Make sure the temperature outside is freezing cold, and leave the blanket outside for 2-3 hours. Freezing a blanket will never replace washing it — it’s more like a temporary pause that you can do in between washings.
