Selecting Culinary Oils
The right oil acts as a foundation rather than an afterthought. Understanding how heat affects the structure of an oil keeps your kitchen clear of smoke and your food free of bitter, scorched notes.
Know your threshold
Oil is an ingredient that degrades under pressure. Match the heat tolerance of the oil to your cooking method to prevent it from breaking down and impacting the final result.
- clear glass storage jars
- dark, cool pantry shelf
What goes in.
- 1 bottleCold-pressed extra virgin olive oil (finishing)
- 1 bottleRefined avocado or grapeseed oil (searing)
- 1 blockClarified butter or ghee (sautéing)
Respect the smoke point
When an oil starts to haze or smoke, it has reached its chemical breaking point. Always match your flame intensity to the oil's smoke point to maintain clean flavor.
The method.
Check the extraction method
Look for labels stating 'cold-pressed' for oils intended to be used raw. This process preserves the profile of the seed or fruit, which is easily lost during high-heat processing.
Evaluate refinement
Refined oils are stripped of impurities, which is exactly what you want for frying or high-heat searing. They have a higher smoke point and provide a neutral backdrop for other ingredients.
Assess storage conditions
Light and heat are the enemies of good oil. Keep your bottles in a dark cupboard away from the stove, as consistent temperature fluctuations will turn a high-quality oil rancid within weeks.
Other turns to take.
Toasted oils
Oils like toasted sesame are highly aromatic and volatile. Use these strictly as a final seasoning, adding them after the heat is off.
When it doesn't go to plan.
If an oil smells like old crayons or cardboard, it has oxidized and should be discarded.
Keep your finishing oils in a pour-top dispenser to prevent excess exposure to oxygen.
A neutral oil should have no discernible scent when cold.
The ones that keep coming up.
Can I reuse cooking oil?
You can, provided you strain it through a fine-mesh sieve or coffee filter to remove food particles immediately after the oil cools. If it smells off or has turned dark and viscous, it is time to replace it.
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