Definitions for "Double cream"
The most versatile cream as it withstands boiling, whips and freezes well. 48% fat. In the US it is known as heavy cream.
This is the British high-fat cream, which corresponds approximately to US 'heavy cream'. It is virtually indestructible, and, often, when a recipe specifically calls for double cream, it may be risky to substitute single cream, for that reason.
Cream is 48 per cent fat, withstands boiling, whips well and can be frozen. Called heavy cream in America