Why is it called double cream?

Why is it called double cream? Double cream: When cows’ milk reaches the dairy, it contains a liquid substance called butterfat, and this, when it’s skimmed off the surface of the milk, is cream, or what we know as double cream.

Double cream: When cows’ milk reaches the dairy, it contains a liquid substance called butterfat, and this, when it’s skimmed off the surface of the milk, is cream, or what we know as double cream.