Jim Massey NOT IN MILK: Like most milk bottlers, Kwik Trip still includes an rBST disclaimer on the labels of the thousands of gallons of milk the company sells each day. Sales of gallon and half-gallon jugs of milk have been “up significantly” during the pandemic, Kwik Trip officials report. Synthetic growth hormone rBST has become a “virtual non-issue.” By Jim Massey | Mar 03, 2021 Consumers often ask what is in the food they eat, and for good reason. But when it comes to milk, they can rest assured there are two things that are not in what comes out of the gallon jug they pour into their glass or onto their cereal — antibiotics and recombinant bovine somatotropin.