Article: Before touching the cheesecake, thoroughly wash your hands with warm water and soap. Rinse your hands to remove the soap residue and dry them completely. Gently touch the surface of the center of the cheesecake with 1 or 2 fingers. Don't press too hard! You want to check the doneness in the middle of the cake, rather than near the edges. If the surface of the cheesecake has a little bit of give but feels firm, the cake is done. If your finger sinks into the cake or comes away with batter on it, the cake needs more time in the oven. Bake it for another 5 minutes before checking it again.
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Wash and dry your hands. Use 1 finger to touch the center of the cheesecake. Look for a firm surface.