The mug’s origins have been meticulously traced by molecular biologist Carmichael Wallace and historian Stephen Snobelen, whose two-decade-long research sheds light on its significance. Their findings suggest that beyond its use as a drinking vessel, the mug hints at Newton’s experiments with fermentation and ink-making. Notably, Newton’s own ink recipes, preserved in his manuscripts, indicate that beer was a key ingredient in his homemade writing ink, possibly used in drafting Principia.
Newton gifted the wooden flagon to his longtime roommate and laboratory assistant, John Wickins, during his tenure at Trinity College, Cambridge. It was then passed down through the Wickins family before reaching the Wallace family, where it remained for generations. References to the mug appeared in historical records, including The Gentleman’s Magazine in 1802, which described it as a 'pint flagon.'
Newton’s relationship with beer extends beyond ink-making. Though his lab assistant Humphrey Newton noted that he consumed beer and ale sparingly, Newton’s papers contain multiple references to alcoholic beverages, including cider and wine. In a letter to Henry Oldenburg, he even inquired about the best apples for cider-making, recommending the ‘Red Streak’ variety.
The exhibition offers a rare glimpse into Newton’s personal artifacts, shedding light on lesser-known aspects of his life, including his possible use of beer-infused ink. Keith Moore, Head of Library and Archives at the Royal Society, remarked, “We often reflect on Newton’s contributions to science, but a beery vision of the great man is certainly a new one.”
The mug will be on display from 4 to 31 March 2025 at the Royal Society, where visitors can explore Newton’s personal history and scientific legacy. Entry to the exhibition is free, offering an opportunity to engage with the artefacts that shaped one of history’s greatest minds.