I picked up 24 oz “Green Tea” from the convenience store earlier. I forgot to check how sweet it was, 60g added sugars in the 706.8ml beverage. So this is like 8.5% sugar (g/ml). Obviously that’s napkin math but this is showerthoughts, not theydidthemath
Measuring added sugar by volume makes little sense. You can add sugar to water and the liquid volume hardly changes. And volume of the sugar depends on crystal size. It works a bit better for alcohol, as that is mixing of two liquids.
Measuring mass makes much more sense and in EU all nutrition labels show sugar per 100g of product (sometimes additionally ‘in one serving’, but that is quite arbitrary). And that is perfectly enough to compare products. I routinely check labels of picles - many of those have insane amounts of sugar, for no good reasons.
I should’ve been explicit about solubility etc. being obstacles here instead of just writing ‘napkin math’. I think the general idea is still a good one, I just don’t have the math (physics?) chops to say exactly what method of measurement/comparison would be needed