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The comparison to coffee is bad, since it's obvious the best coffee is with no sugar and no milk.

I agree, but it is there: perfect amount of sugar: 0, perfect milk-to-coffee ratio: 0 to 1.

What really gets on my nerves is the justified text...

My point is that it's not a personal amount, but an absolute constant.

If you need to mix other things with it, then the coffee isn't good.