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Comment by s0rce | Hacker News Reader

Olive oil is also frequently rancid. I frequently find packaged nuts and trail mix routinely rancid.

Sesame oil is the worst. It has a shelf-life of a week or two.

What kind of sesame oil are you getting...

I think unopened sesame oil can have years of shelf-life. I certainly never had a problem with the smell and we use sesame oil quite a bit in our household.

Same for me - I’m quite sensitive to rancid oil and have never experienced an issue with any brand of sesame oil kept unrefrigerated for a long period of time.

I've been using the same bottle of toasted sesame oil for at least two years now with no ill effects

I keep mine refrigerated.

oil rancidity doesn't cause ill effects in general, just off smells and taste. Which, if you don't notice, is fine, the more things taste good to one, the better off one is.

Refrigerate it and the shelf life after opening increases greatly.

Rapeseed oil is what I use. It can be kept in the fridge, and from what I manage to read online there are no real benefits of olive oil over it except maybe taste and vitamin e content, and people claiming otherwise seem to never really be able to back up their claims.

It works just as well except when you want the taste of olive oil. I find it superior when I stir fry things since the smoke point is higher.

I now taste test most everything.

One challenge is not knowing how something should taste.

I once got harvest fresh olive oil (as a gift). Wow! Total game changer.

~TLDR~ FYI: The good stuff should make you cough a little bit after you swallow it.

Three sentences with a "tl;dr" at the end?

Attentions spans are getting very… wait what was I doing?

Also the tldr is new information not a summary of or even present in the ostensibly too long text!

I don’t think that’s uncommon.

If you're in the US, I recommend the terra delyssa brand for olive oil (many grocery stores carry it)

I’d rather recommended only buying bottles of olive oil with printed harvest dates on the bottle within the last year. It’s absurd that stores are selling two year old oil. There’s a real problem with grocery stores having too many options for a single product and then most of the product on the shelves is unacceptably old.