What is the shelf life of unopened jarred hollandaise?

I have a jar of unopened Trader Joe's Hollandaise sauce that I forgot about in the back of a cupboard. It's definitely been there for over a year. There's no expiry date on it. Is it still safe to use?
Best Answer
So, it's in a glass jar? So it's pretty much mayonnaise made with butter instead of oil. As long as the vacuum seal is good, and the lid pops when you open it, you should be good. Modern shelf-stable products should last years in proper storage. The worst thing that could happen is the fat could become rancid, which is an aesthetic problem, not a safety problem. Taste it, and if you think it tastes good, go ahead and use it.
If the lid doesn't pop from releasing the vacuum, or it's pressurized and hisses like a bottle of soda, or there's discoloration/mold, or it smells weird, then discard it.
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How long does jarred hollandaise last?
Uses: Hollandaise sauce is traditionally served with grilled or poached fish, it is also ideal for serving with plain grilled chicken. To store: Keep jars and cartons in a cool, dry place unopened. Once opened store in the fridge and use within 3 days. Store sauce mix in a cool, dry place.Can you eat expired hollandaise sauce?
If it's a powdered mix, it's still powder (not clumped) and the pack is sealed, I'd go for it. Dried foods here are most likely to have a best before date, rather than a use by (real expiry) date. If it's clumped or the packet is damaged it may have absorbed water which wouldn't be good.How long can I store hollandaise sauce?
You can keep prepared hollandaise sauce in your fridge in an airtight container or bag for up to two days. What is this? If you want to keep it longer to use later, freezing is your best choice. Freezing it will ensure that it stays fresh for up to an entire month.Can you get sick from hollandaise sauce?
Unfortunately, as scrumptious as eggs Benedict can be, Eater reports that hollandaise sauce is particularly notorious for causing food poisoning, as the egg yolks in the sauce are not fully cooked before serving and the sauce isn't kept at a temperature high enough to kill any bacteria.How to make hollandaise sauce
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