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Thread: Are 6oz cups really 6oz's?

  1. #1
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    Are 6oz cups really 6oz's?

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    On Google I read that 6 fluid ounces is 177ml

    I measured my 6 ounce double-walled coffee glass...I also measured a 6oz take-away paper cup

    ...they measured to 250ml (that's with water filled to the very top)

    Perhaps it's assumed that they mean 6oz a cm from the top, but I don't see a marking on my glass

    Anyone know anything about this?

  2. #2
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    I always thought 1 oz of liquid was 30ml , the standard measurement for 1 shot

  3. #3
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    Quote Originally Posted by larryd View Post
    I always thought 1 oz of liquid was 30ml , the standard measurement for 1 shot
    Roughly speaking you are correct. It also depends on whether you are using UK (imperial) measures or US measures.

    1 fl oz (Imp) = 28.41 ml
    1 fl oz (US) . = 29.57 ml

    so 6 fl oz (Imp) = 170.47 and 6 fl oz (US) = 177.44 ml.

    Quote Originally Posted by johntropea View Post
    On Google I read that 6 fluid ounces is 177ml ...

    ... they measured to 250ml (that's with water filled to the very top) ...
    I'd say the cups are designed to be roughly filled to the 70% mark to achieve the 6 oz without the risk of spillage.

  4. #4
    Senior Member Yelta's Avatar
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    Yep 30 mls = 1 UK fluid ounce, near enough.

    Hmmmm! lets see how this one develops.

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  5. #5
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    Wink

    Suspect the cups are 6oz plus one or two oz spare to avoid spillage etc

    Although there is the other school of thought that in the US, 8oz is considered a standard cup. Just to add to the confusion,

  6. #6
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    Behmor Brazen - $249 - Free Freight
    thx for the replies

    ...been diluting my filter brews more than I thought



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