A remarkable 162-year-old bottle of Guinness has been recovered from a shipwreck in the English Channel, giving scientists a rare opportunity to investigate what beer tasted like more than a century and a half ago.
The bottle is believed to date back to 1864, when the sailing ship Mindoro sank in the English Channel. Divers discovered a larger collection of bottles from the wreck, which had remained underwater for more than 160 years.
The discovery has attracted attention not only from maritime historians and collectors but also from scientists interested in the biological material that may have survived inside the sealed bottle.
Researchers hope that microorganisms or other preserved biological traces in the historic Guinness could provide clues about the ingredients, fermentation process and brewing techniques used in the 19th century. If viable material or useful genetic information has survived, scientists may be able to learn more about the microorganisms involved in producing the original beer.

The bottle was recovered from the wreck of the Mindoro, a sailing vessel that sank in 1864. A box containing approximately 18 to 20 bottles was reportedly located by Belgian diver Stefan Panis at a depth of around 30 meters, while the wreck and the origins of the beer were subsequently investigated by divers and researchers.
The find is particularly significant because historical beer recipes did not always provide the level of detail available to modern brewers. Ingredients, yeast strains, fermentation conditions and production methods could vary considerably over time.
Scientists will therefore be looking for more than just a recipe. The preserved contents could potentially provide clues about the microorganisms and chemical characteristics associated with Guinness brewing during the Victorian era.
For Guinness enthusiasts, the prospect of recreating a stout from 1864 is particularly intriguing. Rather than simply producing an old-fashioned beer based on historical documents, scientists could potentially use evidence preserved inside the original bottle to get closer to the biological and brewing conditions of the period.
Whether the surviving material will be sufficient to recreate the original beer remains to be seen. But after spending 162 years beneath the sea, a single bottle of Guinness may now offer an extraordinary scientific window into the brewing traditions of the past.