A diabetic researcher and designer has devised a way to turn the urine of elderly diabetics into whiskey.

James Gilpin recruits elderly diabetic volunteers, including his grandmother, to obtain the urine, then purifies it. The sugar molecules are removed and added to the mash stock to speed up fermentation.

It’s not a joke, but not something that will be widely marketed either. Gilpin says the bottles of high-end single malt whiskey, marked with the name and age of the person who gave their urine to make it, are artwork.

However, if you are dying to try some diabetic whiskey, you can attend a tasting session this month in London at 100% Materials.