An insert for a cooler is sized and shaped for placement on a lower surface of the cooler while supporting foodstuffs placed on insert. Draining apertures on insert allow liquid to drain away from foodstuffs into a space below insert and thereby separates liquid from foodstuffs. Draining apertures are formed from internal walls having curved sections and are sized to facilitate insertion of human fingers therein during cleaning, the curved sections and size of apertures facilitating cleaning. Guide lines marked on insert allow insert to be cut to be adapted in size and shape to lower surface of cooler.