Cooking oils are a necessity in many kitchens. They are used to add flavor and taste to food, as well as provide healthy fats for the body. Cooking oil is not something that should be taken lightly when it comes to storage. All cooking oils will go bad over time if they are not stored properly, which can lead to rancid flavors in food and an unhealthy diet. This post will discuss what happens when oils aren’t stored correctly, how you can store them properly, and why this is important for your health! The first thing to understand is what happens when oils are stored in an open container. While this may seem like a good idea, it’s actually the worst way to store cooking oil and leads to rancidity fairly quickly. Rancid oil can be identified by its taste or smell, which will often have a sour flavor with hints of onion or garlic – both flavors that should not belong on your food! When oils go bad due to improper storage, they also lose their nutritional content, rendering them ineffective for use in healthy cooking. The only time you would want your cooking oil exposed to air is during preparation; otherwise cover tightly as soon as possible after opening. It’s important that all types of oils (including avocado or olive)