"Cream whey cheese." Fløtemysost is a mild version of brunost made with whey, added milk and cream from cows. The water is boiled out from the whey, slightly caramelising the lactose residue, which gives it its characteristically sweet flavour and brown colour. It is then moulded into a pale reddish brown block of "cheese." In general, the darker the colour the stronger the flavour. It is a cooked cheese made generally from pasteurised milk and can be kept in the fridge (not the freezer) for up to four months. These cheeses is often seen on breakfast and lunch tables with a cheese plane, which allows you to slice manageable slivers of cheese for inclusion in your open sandwich.