Quick answer: Keep oil tightly closed in a cool, dark cupboard away from the stove, oven, windows and the top of the fridge. A light-proof tin helps, but it can't protect oil from a hot shelf. Wipe the spout, close the cap after every use, and buy a size you'll finish within a few months of opening.
From one cheap oil to a small rotation
Growing up, the oil in our kitchen was whatever cheap, highly processed oil was on offer, and it was the same one for everything. Nobody thought about rotating oils, or about what kind of fat was in them.
Today my kitchen looks different. I rotate a few oils, and a MUFA-rich oil like avocado oil is now the main one, with olive oil now and then. That change came with a new habit I didn't expect: when you keep more than one good oil, where and how you store them suddenly matters a lot more.
Four things wear oil down
Oil doesn't spoil like milk; it fades. Four things speed that up, and an Indian kitchen has plenty of all four:
| Enemy | What it does | What helps |
|---|---|---|
| Heat | Speeds up the slow reactions that make oil stale | A cupboard away from the stove |
| Light | Accelerates breakdown, especially sunlight | Opaque tin or dark glass |
| Air | Gets in every time you open the pack | Close the cap right after pouring |
| Time | Lets the other three add up | A pack size you'll finish |
The worst spots in an Indian kitchen
- The shelf beside the gas stove. Convenient, and often the hottest place in the room.
- A sunny windowsill or open counter. Light plus heat.
- Above the oven or on top of the fridge. Warm air rises and collects there.
- A car boot, on the way home from the store in May.
Why we chose tin
Clear plastic and clear glass let light straight through. Dark glass reduces it. An opaque tin blocks it completely, doesn't shatter in a delivery bag, and our controlled-pour cap limits how much air gets in each time. We also had SGS India check that nothing migrates from the can into the oil; here's what they found.
Good oil deserves good protection. But a tin can't undo a hot shelf, so where you keep it still matters.
Should oil go in the fridge?
Usually, no. A cool cupboard is enough. Chilled avocado oil can turn cloudy or thicker; that's normal and reverses as it warms. It doesn't mean the oil is spoiled, and it doesn't prove purity either.
Monsoon and humidity
Humidity matters less to the oil inside a sealed tin than to the cap and spout. Wipe the spout after pouring so drips don't collect dust or moisture, and keep the cap clean and dry.
Rotating oils? Three extra habits
- Open one oil of each type at a time, not three tins of the same.
- Write the opening date on the cap with a marker.
- Keep the everyday oil (Essential) nearest, and occasional ones further back in the cupboard.
How to tell oil is past its best
Fresh Essential smells clean and mild. If it smells like crayons, paint, putty or stale nuts, it has oxidised. Drizzle naturally has more aroma, so compare it to how it smelled when you first opened it. And check the best-before date printed on your tin, next to the batch code.
Frequently asked questions
Does avocado oil expire?
Yes. Follow the best-before date and use it within a reasonable time after opening.
Is cloudy avocado oil bad?
Not necessarily. Cool temperatures cause temporary cloudiness. Smell is the better test.
Can I decant it into a glass bottle?
You can, but a clear bottle on the counter undoes the tin's light protection. If you decant, use a small, dark bottle and refill often.
Keep reading
— Spoorthi, The Avo Company