this post was submitted on 27 Nov 2023
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618ml equates exactly to 600ml + 3% - maybe manufacturers add 3% on top because that's the maximum allowable variance in quantities?
From a quick search, 412ml and 515ml both seem pretty common too.
I think you're on the right track. My guess would be that they have a 3% tolerance (uncertainty, idk) with filling so they fill 600 ml but statistically it might be as much as 618. Putting 618 on the packaging lowers the price per liter a little, compared to 600.
This seems backwards from what a manufacturer would want to do. The concern with variances isn’t really having too much but having too little in the bottle. If you aimed to put exactly 600 in the bottle, you will sometimes end up below 600. It would make more sense to label it 600, aim for 618, and be confident that you’ll always fill it to at least the advertised 600.
Exactly. In Europe for example, you see the stylized "e" symbol on packaging very often. It means that a negligible amount are below the advertised volume/weight.
So if the package says 600ml, they might have to set the machine to 610ml to ensure they satisfy this condition.
Isn't that e for net weight. So it doesn't include the container. At least that's what I've been led to believe, so now I'll be googling!