This autumn’s edition, which had a print run of more than 1.8m, was printed by St Ives, Roche on completely recycled paper supplied by John Heyer Paper.

The charity believes its magazine’s run is the longest to have been produced on 100% recycled stock.

Print and production manager Pete Kraushaar intends to take the use of green paper even further. He said: “Now we have to carry on with it. The magazine carried a lot of inserts and we are looking into requesting that they are printed on green paper as well.”

The National Trust is converting much of its printed material over to 100% recycled material. Its 400pp handbook is already printed on fully recycled paper, but the Trust is currently working on producing a cover that is also made with green paper.

Kraushaar added that currently around 75% of the organisation’s paper was recycled.

He said: “Now we have to add the final 25%, which will of course be the hard bit. Printers are starting to accept 100% recycled paper, but there is still nervousness from some printers.”

He added: “The National Trust is committed to reducing its environmental footprint wherever it can and a key focus of our strategy is to encourage others to join in and do the same.”