More than 600 old beer bottles dating to the 1800s were found underneath a cellar staircase.
Archaeological Services WYAS first discovered them in February within the remains of what was once the Scarborough Castle Inn in Leeds, England, and promptly sent the bottles away to be analyzed.
Researchers first thought they may have contained ginger beer.
However, according to a Facebook post from Archaeological Services WYAS, the bottles actually contained alcohol — and high concentrations of lead.
The organiztion said the bottles contained beer with a pH of 5.07 and an alcohol content of 3 percent ABV. However, the liquid contained 0.13mg/l of lead, far above the WHO-recommended safe level in…