What effect does heat have on cooking oil shelf life?
I'm referring to any/all cooking oils. I am wondering what temperatures cause significant degradation in quality or rancidity.
Best Answer
As I know almost all cooking oil become unhealthy and toxic when the "smoke point" is reached. Every oil has a temperature point that should be never reached, as follows:
For mechanic extra virgin oils:
- flax, safflower and sunflower oil - 107 C
- walnut and peanuts - 160 C
- coconut, soy, corn and sesame oil - 177 C
- extra virgin olive oil - 190 C
The regular cooking oils have "smoke point" even higher like over 235 C so it's better to use those for cooking and let extra virgin ones for salads and cold dishes.
Or just be aware to not see smoke while cooking with oil:)
Me, I'd suggest butter instead, because at higher temperature butter turns to "ghee" which is quite healthy. - avocado oil - 190 - 204 C - almonds and grapes oil - 216 C - palm oil - 235 C
Pictures about "What effect does heat have on cooking oil shelf life?"
Can you store oil in heat?
Knowing how to store olive oil for maximum quality is important. When olive oil is exposed to oxygen, light, and heat, it may become rancid. Proper storage can prevent this. Industry experts recommend storing the oil at between 55 and 60 degrees Fahrenheit for best results.Does oil lose its benefits when heated?
Cooking with an oil will not change its fat composition. Olive oil's percentage of monounsaturated fat remains the same after heating, even to high temperatures.Most Dangerous Cooking (Avoid these Completely) 2022
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