• SpecialSetOfSieves@lemmy.world
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    5 hours ago

    my 250 million year old salt has expired

    laughing in Martian

    Yup, that’s Earth alright. Rookie numbers, as usual.

    well‐preserved, clay and carbonate‐bearing sedimentary fan deposit located on the western edge of the crater

    This fan is estimated to have formed approximately 3.2–3.8 billion years ago when ancient streams flowed into the Jezero crater lake

    • PieMePlenty@lemmy.world
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      2 hours ago

      Yup. When it expires, its done for. When it’s past the best by date, it just means it’s best days are over. Much like my own.

  • fitjazz@sh.itjust.works
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    10 hours ago

    I used to have a pre-filled salt grinder that said “freshly ground for fresher taste”. I always thought “you don’t understand how rocks work” whenever I would read it.

    • RunawayFixer@lemmy.world
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      2 hours ago

      The surface of the salt grains reacts with what is in the air (moisture, smells), slowly changing the surface over time, and since it’s that surface that touches our taste buts most, the taste of the salt will be different.

      Salts are also often not pure sodium, but have added elements that give it a distinct taste and aroma. That original taste/aroma will be lost over time, because aroma = smell = particles flying away in the air. Long exposure to a strong smell will also cause the salt to acquire that different smell as part of it’s new aroma.

      Starting from larger grains and grinding them shortly before usage, would thus give salt that smells and tastes more like it’s fresh from the salt factory. But I do wonder how many people would be able to tell the difference in a blind test.

    • Akasazh@lemmy.world
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      9 hours ago

      Surface area is a thing. You can use differently grounds salt for different effects.

  • TouchMacaque@lemmy.ca
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    11 hours ago

    If you dump it on your garden it’ll make your vegetables salty so that when you eat them you don’t have to add seasoning. The more salt you put the better the plants will do. My grandpa Ahmed used to tell me about that trick when I was a kid and his yard was the most wonderful desert.

    • Triumph@fedia.io
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      11 hours ago

      Probably because the container is only able to keep moisture out for so long before the quality degrades. “Best by” means “we can’t guarantee quality after this date, but it probably won’t hurt you after that”, while “use by” means “if you consume this after this date, you might become ill, and there may be no indication that the food has gone bad”.

      • BanMe@lemmy.world
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        9 hours ago

        It’s because some states require expiry dates on all food items, and they didn’t think to create exemptions for things like this. I think only a couple of states require it without exemption, but no one wants two versions of their products, one with a date and one without, so they just put it on all items now, like the Prop 13 warnings.

  • HugeNerd@lemmy.ca
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    9 hours ago

    And yet somehow the billions-years-old atoms in your body encode a 35 year old, and then a 78 year old, then …