The 20/20 rule is to put the REDS IN the fridge for 20 minutes or so, and take the WHITES OUT of the fridge 20 minutes or so before serving. Use this as your general rule. If you have a wine fridge, reds will be find if set to an optimal temp but whites should always come out of the fridge before serving. If they're in a wine fridge, 5-10 minutes should be OK.