|Origin||Cornwall, late 1800s.|
This variety has a high sugar content, adding sweetness to the bittersharp flavour. Due to these equalities, it has been prized for making and blending cider. The trees are vigorous croppers and is also resistant to apple scab. It has a heavy, russeted skin and soft flesh.
Dufflin cider mentioned in a story by the Cornish writer, Sir Arthur Thomas Quiller-Couch, in his book, "Ia, and other tales" , which was published by Bernhard Tauchnitz, Leipzig in 1896. In the story the main character: Ia Rosemundy, spills Dufflin cider on Rev Paul Heathcote, a visiting preacher.
- Long Ashton Cider Apple Key, written by R. R. Williams and R. D. Child
- "The Apple Tree" an article by Thomas Cragoe FRGS, Journal of the Royal Institution of Cornwall, (Volume 9, Part 1) By Royal Institution of Cornwall pages 67-79 
- Philip McMillan Browse. "Heligan: Fruit, Flowers and Herbs". Books.google.co.uk. Retrieved 2016-05-12.
- "Item ~ Devon Apples ~ Informative Apple and Fruit Resource". Devon-apples.co.uk. Retrieved 2016-05-12.
- "Nook's Yard Cider Apple Identification". Nooksyard.com. Archived from the original on 10 June 2016. Retrieved 6 May 2016.
- Sir Arthur Thomas Quiller-Couch. "IA: and other tales". Books.google.co.uk. Retrieved 2016-05-12.
- "The Salamanca Corpus: Ia (1896)" (PDF). Gredos.usal.es. Retrieved 2016-05-12.
- Virginia Spiers Burcombes, Queenies and Colloggetts: the Making of a Cornish Orchard. West Brendon, 1996 ISBN 0952764105, ISBN 9780952764106
- Antony Gibson In Search of Cider: Cider and Cider Makers in Cornwall, Devon, Dorset and Somerset. Paperback – 8 Apr 2010
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