How Long Do Cold-Pressed Oils Last? (And How They Compare to Processed Oils)

At Purepress Oils, we believe in keeping things natural—no heat, no chemicals, just pure, cold-pressed goodness. But because our oils are minimally processed, they have a shorter shelf life than refined oils.

Cold-Pressed vs. Processed Oils: What’s the Difference?

• Cold-Pressed Oils – Extracted naturally without heat or chemicals, keeping nutrients and flavor intact.
• Processed Oils – Refined using high heat and chemicals to extend shelf life but lose some nutrients.

Processed oils can last years, but at the cost of flavor and nutrients. Cold-pressed oils, on the other hand, are fresher and richer in natural compounds but require better storage.

How Long Do Cold-Pressed Oils Last?

Here’s a quick guide for the oils we press at Purepress Oils:

• Pumpkin Seed Oil – up to 12 months
• Almond Oil – up to 18 months
• Sunflower Oil – up to 12 months
• Sesame Oil – up to 12 months

Since our oils are free from preservatives, they can go rancid faster if not stored properly.

How to Keep Your Oils Fresh Longer

1. Store in a cool, dark place – Heat and light speed up spoilage.
2. Use dark glass bottles – They protect against light exposure.
3. Refrigerate after opening – This slows oxidation and extends shelf life.
4. Keep the lid tight – Air exposure can cause the oil to turn rancid.

How to Tell If Your Oil Has Gone Bad

Rancid oil has a bitter, stale, or “off” smell. It won’t make you sick, but it loses its health benefits and flavor.

Frequently Asked Questions

1. Can I use cold-pressed oils after the expiration date?

If stored properly, your oil may still be good slightly past its expiration date. However, check for changes in smell, taste, or texture—if it smells rancid or tastes bitter, it’s time to toss it.

2. Why do cold-pressed oils spoil faster than refined oils?

Cold-pressed oils are not heated or chemically treated, which preserves their natural nutrients but also makes them more sensitive to oxidation. Refined oils, on the other hand, undergo processing that removes impurities but also strips away many of the oil’s natural benefits.

3. Do I need to refrigerate cold-pressed oils?

Refrigeration isn’t always required, but it helps extend freshness—especially for pumpkin seed and sunflower oils. Almond and sesame oils are more stable but still last longer when kept cool.

4. Can I freeze cold-pressed oils?

Yes! Freezing can extend shelf life without harming the oil. Just let it come to room temperature before using, as some oils solidify when cold.

5. What’s the best way to store my oils?

Keep them in a dark glass bottle, store them in a cool, dark place, and seal tightly after use. If you live in a warm climate or don’t use oil frequently, refrigeration is a good idea.

At Purepress Oils, we press fresh, small-batch oils, so you always get the best quality. Store them right, and they’ll stay fresh and delicious for months!