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How do you tell your coffee beans are bad? They are not milk and smell sour!

This is a discussion on How do you tell your coffee beans are bad? They are not milk and smell sour! within the Coffee Beans & Espresso Beans forums, part of the Coffee Addicts category; I'm coffee beginner, yes I sell the stuff but I'm no expert! Opinions matter to me it part of my learning process! If you are ...

  1. #1
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    Lightbulb How do you tell your coffee beans are bad? They are not milk and smell sour!

    I'm coffee beginner, yes I sell the stuff but I'm no expert! Opinions matter to me it part of my learning process! If you are full of 411 send it my way!

    Thanks,
    Edward Kaneshiro
    President/CEO @ Buybulkstuff

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  3. #2
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    What info are you exactly looking for about the "stuff"?
    "Wine is for aging, not coffee."
    Ken Hutchinson, Starsky and Hutch

  4. #3
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    Quote Originally Posted by topher View Post
    What info are you exactly looking for about the "stuff"?
    Ground Arabica Coffee
    Whole Bean Arabica Coffee

    When do you know when they are no lnger useable or the flavore is going to be crappy!
    Edward Kaneshiro
    President/CEO @ Buybulkstuff

  5. #4
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    about 4 weeks after the roasting. But actually 2 weeks after the roasting, it will start to lose its integrity and after 4 weeks, it should not be used but if you store them properly, you can prolong the life of the coffee to about 4 months.

  6. #5
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    Quote Originally Posted by Buybulkstuff View Post
    yes I sell the stuff but I'm no expert!
    may i suggest that if you are selling the "Stuff" you had better become somewhat of an expert.
    is the sour smell in the green beans, or a cup of coffee? if it is the green beans, they may have been improperly stored. need more details.

  7. #6
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    namballe: I'm guessing the op is stating its tough to tell when beans have gone bad, as they aren't a commodity like milk that smells sour when bad.

  8. #7
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    If you are selling coffee beans, one thing to know well is how to determine that the beans you sell is bad. Otherwise, your business is losing if you are selling bad beans. Cheap beans can be one of the signs that the beans are not good. There is a possibility that the source is using poor quality beans that allows higher percentage of moldy beans to be mixed. Some are mixing beans from multiple areas which made it very cheap one also. It is very important to get source from a single estate. Again beans that are molding are not good.

    Roasting is also important to determine that the coffee beans is good because it is a decision based on how it last longer and the production is mass scale. Over roasted beans are not a good beans and the appearance are somewhat oily.

  9. #8
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    Hello BuyBulkStuff,

    Are you selling roasted prepackaged coffee? Whole beans or ground?

    You need to know when the coffee was roasted and see how it was packaged in order to estimate the shelf life.

    It's obviously much easier to tell if your milk has gone bad by the smell and the taste. Coffee is quite different, and although you can essentially use the coffee when it gets old, the taste won't be the same.

    I have a feeling you're looking for answers as to what the coffee beans look like when they're aged to the point where the taste is altered.

    I've noticed that when I buy freshly roasted beans, there is a slight oil on some of the beans. As the days go by, the oil gets less and less, and the beans become dryer looking. I never have my coffee beans around for more than a couple of weeks. Maybe one of our members who are roasters could give you a better visual description of what to look for.

    If you're selling roasted coffee beans, you need to know the roast date. If someone is trying to pass off their beans to you to re-sell, you're probably going to get a cheap price, but you're going to get old beans.

    Rose

  10. #9
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    Quote Originally Posted by eldub View Post
    namballe: I'm guessing the op is stating its tough to tell when beans have gone bad, as they aren't a commodity like milk that smells sour when bad.
    i see. could be an underroasted bean, or a "fruity" note.

  11. #10
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    The best way to ensure good beans is to know the crop/harvest year, how they were transported and stored before you got them, and then most importantly would be to roast and cup a sample. There is no way to know if good-looking beans are going to taste good.

 

 
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