All Adda Coffee & Tea House locations in Pittsburgh are closed, the company announced on its social media Thursday.The company blames monetary losses, exacerbated by the pandemic, but employees tell Pittsburgh’s Action News 4 they believe the closure is in response to employees forming a union.“Never were we under the assumption that any of the stores were going to close, so this is really sudden and really heartbreaking for everybody,” said Chris Gratsch, former lead barista at Adda’s Shadyside location.Gratsch said he and at least 30 other employees announced their move to unionize Wednesday night, and now they’re looking for a new job. Gratsch believes the company shutting down is a direct response.“Eight o’clock yesterday, we received the announcement that all four stores will be closed effective immediately,” Gratsch said.A post on the company’s Instagram page called the business a “labor of love” but listed a different reason for the closure.“Sadly, we have been operating at a loss since the beginning, which has been exacerbated by the pandemic,” the statement read. “We tried to stay optimistic and have been consistently re-evaluating our business model in our efforts to keep fulfilling our mission. Despite everyone’s best efforts, our monetary reserves are depleted, and we need to close our doors.”Pittsburgh’s Action News 4 has reached out to the company but has not yet heard back.“I really hope that the owner does the right thing and acknowledges us and makes sure that these people are taken care of because a single pay period of severance isn’t enough for people to get by,” Gratsch said.Gratsch said the efforts to form a union began in December 2022.