Frozen concentrate, shelf-stable juice in hermetically sealed containers, and canned juice are processed to eliminate harmful bacteria. Fresh unpasteurized juices normally are found in the groceries' refrigerated sections. Unpasteurized apple cider may also be found at cider mills and farm markets.
Parents of children in day-care centers and schools that serve cider and juice may want to ask if the products are pasteurized. Children on field trips to apple cider mills or farm markets should not drink unpasteurized cider.
If you or someone in your family is in one of the high-risk groups and you cannot determine if a juice product has been processed to destroy harmful bacteria, either don't use the product or bring it to a boil to kill any possible harmful bacteria.
FDA Flyer: 1997
For additional information, see the September/October 1998 FDA Consumer Article: Critical Control for Juice Safety