The chippies alway put them in greaseproof bags first, then the newspaper. Much better method as the fish & chips would still be hot and the chips would not be soggy by the time you got home, like they are today. We use to take our old papers in, and get a bag (greaseproof) of batter chippings for our trouble! Crackling they used to call it - crikey the food police would come down on the shop if they gave that away now! As dot said, fresh fish was always wrapped straight on the n'paper - never did us any harm - but then newsprint is different today.