Check out this PDF from chapter 14, “Storage and Handling”, from The Extra-Virgin Olive Oil Handbook by Claudio Peri. Most of the book is pretty technical, but this chapter is good for anyone who enjoys olive oil. The main point is to minimize heat, air, and light exposure. I stopped keeping my olive oil next to the stove. This quote from Peri resonates with me:

“If an excellent quality oil obtained at the producer’s factory is to reach the consumer’s table, a revolution in the mentality of olive oil traders and users must take place.” (Peri 166)