Oils should be stored in a cool, dark place like a pantry to prevent them from going rancid due to exposure to heat, light, and air. Storing them on a kitchen counter, especially near the stove, is generally not recommended.
Oils are susceptible to oxidation and degradation when exposed to heat, light, and air. These factors can cause the oil to become rancid, altering its flavor and potentially reducing its nutritional value. A pantry provides a stable, cool, and dark environment that minimizes these effects.
Here's a breakdown of why a pantry is better:
Temperature: Pantries are typically cooler than kitchen counters, especially those near the stove or oven. High temperatures accelerate the oxidation process.
Light: Light, especially sunlight, can degrade oils. Pantries are dark, protecting the oil from light exposure.
Air: While you can't completely eliminate air exposure, keeping the oil tightly sealed and in a less frequently accessed area helps minimize it.
Storing oil on the kitchen counter, particularly near heat sources, significantly shortens its shelf life and can negatively impact its quality.
Consider storing frequently used oils in a dark-colored, airtight container, even within the pantry, for extra protection. This is especially important for delicate oils like olive oil.