A temperature scale from 0-100 for me implies that the perfect temperature for most people would be right in the middle at 50F. If 0 is too cold and 100 too hot, 5 should be just right, and it ain’t.

No cup of flour will have the same amount of flour in it. Plus how many tomatoes do I need for one cup of chopped tomatoes?

Plus weighing sticky stuff is much easier than using cups or spoons.

So by this logic I would expect 50F to be the perfect temperature.