The multi-cultural group meets up for a drink each week, and is part of a trend that has seen kava go beyond its Pacific roots, but the Kava Society has got some social media users hot under the collar.
But one of its founding members, Zbigniew Dumieński, said the group didn't pretend to follow any rituals or ceremonies and thinks it would be bad, culturally, if they did.
He said his initial interest in kava was sparked while he was in the Cook Islands and Niue for research.