Bees wax wraps: these are thin sheets of bees wax formed around a linen cloth. Bees wax is a naturally antiseptic material. The sheets are flexible, can be easily moulded to fit over containers or around food, and tend to keep their shape after moulding. Widely available to buy online.
Tea and coffee
Cardews of Oxford: I now buy loose coffee beans and tea leaves from Cardews. Not only are they very reasonably priced, and the coffee and tea delicious, but they package their tea and coffee in paper bags, and deliver them in cardboard boxes.