In Britain, the drinking of tea is so varied that it is quite hard to generalise, but usually it is served with milk and sometimes with lemon. The "cream" in a "cream tea" refers to the clotted cream served on scones, usually with strawberry jam, a tradition originating from Devon and Cornwall. Strong tea can be served with milk and occasionally one or two teaspoons of sugar in a mug, and is commonly referred to as builder's tea. Much of the time in the United Kingdom, tea drinking is not the delicate, refined cultural expression that some might imagine: a cup (or commonly a mug) of tea is something drunk often, with the most serious drinkers drinking four or more cups of tea before leaving the house for work. It is not uncommon for up to 10 cups of tea to be drunk each day.