Raspberries come in all sorts of colours, they can be red, purple, gold or black in color.
How to Select
Look for bright, evenly colored and plump berries, with no mushy or moldy examples. If you're buying a punnet, check that the underside isn't stained - that means the lower level of berries has been crushed. Avoid raspberries with their hulls still attached; that indicates that they were picked before they were ripe, so their flavor will be tart.
How to Store
Arrange them on a layer of kitchen paper on a plate, so that they don't crush each other, and store them in the fridge. Take them out of the fridge an hour before eating, so that they're at room temperature. They are best eaten on the same day they were bought or picked.
How to Prepare
Wash gentily and delicately pat them dry with kitchen paper.