in-use

Updated: May 4, 2025

In either case, keep now-opened, in-use small bottles of oil in the refrigerator because rancidity is simply the combination of oil with oxygen from the air and this chemical reaction is accelerated at warmer temperatures and slowed greatly at cold ones. Chemical reactions typically double in speed with every 10 degrees C. increase in temperature.

Isabel Moser - How and When to Be Your Own Doctor