PRODUCT DELAY, NOW DUE JULY - DELAY DUE TO MACHINE CHANGE Rio No 4 Coffee Bags 4 x 10. Medium Rich & Dark strength coffee. Rio No4 Coffee Bags 4 x 10 pack is a medium-strong coffee made from a fabulous blend of Latin American Arabica coffee blended with spicy African robusta coffee beans. Rio coffee bags use a unique "Perfobru" coffee bag which allows the Rio No4 coffee bag to expand giving the ground coffee freedom to professionally brew producing a richer flavoured coffee. Rio No 4 paper coffee bags are fully compostable and individually foil fresh wrapped. Buy Rio No4 coffee bags pack of 4 x 10 with Uk next-day delivery.