Can flaxseed oil go rancid?
Also asked, how can you tell if flaxseed oil is rancid?
In addition, check their smell and taste frequently; rancid oils tend to be unpleasant tasting and bitter. Fresh flaxseed oil has almost no taste, while rancid flaxseed oil smells kind of like an oil painting. Any oil that develops these off tastes and odors should be discarded without taking any more.
Additionally, does flaxseed oil go bad if not refrigerated?
1 Answer. Flaxseed oil goes rancid quickly, and refrigeration slows down this process. So, yes, you should do as the label says (usually a good idea anyway) and keep it in the fridge.
Store flaxseed oil supplements in a cool, dry place, such as the refrigerator. Light, heat and air can break down flaxseed oil. Keep flaxseed oil and all other supplements out of children's reach. Heat, light and air can make flaxseed oil spoil quickly so it should be stored in the refrigerator.