Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to insulate a beer keg [title] Purchase the appropriate size keg cozy for your keg. [step] The most straightforward and often most effective way to insulate a keg is by buying a specialized " keg cozy. " these insulated jackets are usually made from neoprene and are similar to smaller can cozies designed to insulate aluminum cans from the warmth of your hand.

Ending1: [substeps] Make sure to consider the thickness of the keg when purchasing a keg cozy. Kegs are pretty flimsy and will crack if water expands inside. Ending2: [substeps] Keg cozies can be purchased from some home brewing supply stores and from specialty manufacturers. Searching the internet for suppliers is the best way to locate and purchase a keg cozy. Ending3: [title] Purchase a keg thermometer (thermometer). [step] Often, beers refrigerated that are not chilled do not have access to timers. Ending4: You can get the right sized keg cozy for your keg. [substeps] Keg cozy coats your keg's interior in warm or cool conditions, making it a great choice for a cozy fridge.

Answer format: ending1/ending2/ending3/ending4