The US sustainable food start-up Eat Just has struck a deal to build massive bioreactors with the goal of producing tens of millions of pounds of lab-grown meat a year. Founded in 2011, Eat Just specializes in egg alternatives and meat grown from animal cell cultures. The company’s subsidiary GOOD Meat announced Wednesday it had signed an agreement with equipment manufacturer ABEC Inc, which typically works with the biotech and pharmaceutical industries, to develop 250,000-liter (66,000 gallons) bioreactors to grow the cultures. Eat Just said in a statement it plans to install 10 of the biorea…