Scientists will share their research with members of the public in pubs across more than 40 cities across the UK from 20-22 May.
Pubs involved in the festival this year include a Sheffield pub dating back to 1475, a space-themed speakeasy in Newcastle and many community-run sites.
Project director Dr Callam Davidson said: “As the festival enters its seventh year, we're thrilled to have Pint of Science reaching more people than ever before.
“This year's festival will feature some fantastically creative events cooked up by our endlessly ambitious volunteers, showcasing some of the nation's most brilliant researchers in their local pubs and cafés.
“This year has been a big one for Pint of Science, and we see some very exciting things on the horizon – join us for a pint in May and we'll tell you all about it.”
Licensee Andy Skene said he was excited for his site, Queen St Brewhouse in Colchester, Essex, to take part for the second time.
Speakers covered topics ranging from commercial use of space to the erosion of aboriginal rights in Brazilian rainforests and drew in more than 150 people.
He said: “The themes provoked much discussion, and many things were learned.
“I am scientist at heart, which is why I spent over 30 years in brewing, fascinated by the mixing of art and science in that craft. Furthermore, I come from a family of teachers.
"There is nothing much that excites me more than spreading knowledge that can make us more aware of our effect on the planet, and on each other.
“That is why I love the idea of Pint of Science – science in the community, for all to see.
“In a bar or pub setting, people can relax and not feel like they are back in school being lectured. Plus they can immediately discuss what has come up in the talks. You also get to meet real scientists and see that they are human too.”