Some packaging is produced in Preston
Isle of Man Creamery has confirmed all its cheese is made with Manx milk on the Isle of Man.
A Manxman who now lives in Pittsburgh, Pennsylvania found a packet in Fresh Thyme Market, which said the cheese was produced in Preston in the UK.
Isle of Man Creamery says its USA distribution partners, who are based in Preston, complete the final cutting and packaging, hence the GB mark.