winterize

verb

1. (transitive)To prepare (something) for winter weather.

   “Temperatures are expected to plummet over the weekend, and aside from grabbing a coat, experts say there’s some things you should do to winterize your home.”

2. (transitive)To remove the saturated fats from (a vegetable oil) by cooling and filtering it, so that it does not become cloudy in the winter.

   “Some oils which are frequently winterized to produce salad oil are: refined and lightly hydrogenated soybean oil, cottonseed oil and some varieties of rapeseed oil. The continuous miscella winterizing process takes from 45 min to 1 hr to produce +15 hr cold test oil.”