Bedlam collaborated with The Beer Company on the 3.9% ABV brew, which has been pouring across the Mitchell & Butlers pub estate, as well as free trade pubs.
The brewer has donated £5 from each cask and keg, and 10p from each can sold to Project Biodiversity.
As a result, a sea turtle nest was sponsored in the name of Bedlam Brewery, which has now hatched. Out of 85 eggs came 72 baby turtles, which were released into the sea.
Bedlam chief executive, Bob Emms, said: “The proceeds from our partnership with The Beer Company UK helped make this hatchery possible — we can’t be more thrilled with the results.
“I’m fascinated in stats, and was shocked to learn that hundreds of thousands of baby turtles from these beaches will get to the sea, but only one in every 1,000 will be able to come back in 20 to 25 years’ time to lay their eggs.
“We love our ocean and we’re keen to work with the community to act against the destruction of our seas, and so this was a great opportunity for us.”