Duvel Moortgat, the Belgian brewing firm, has taken a 60% stake in London-based kombucha firm Jarr Kombucha, according to a report in The Drinks Business. The deal will reportedly allow Jarr Kombucha to “significantly increase production” as well as giving it access to Duvel Moortgat’s UK distribution network. Funds raised from the acquisition are also said to be earmarked for a new site in London. Jarr Kombucha comes in Original, Ginger and …