Impossible Burgers to Be Sold in Grocery Stores for the First Time.<br />The soy-based meat substitute will be <br />available in 27 Gelson’s Markets <br />throughout Southern California on Friday.<br />The company plans to expand <br />grocery sales to the east coast <br />by the end of the month.<br />The meatless burger debuted <br />at chef David Chang’s <br />Momofuku Nishi 3 years ago.<br />We wanted the benefit of building a consumer movement in the hands of professional chefs before we began to serve home chefs, CFO David Lee, via CNN Business.<br />Impossible Burgers are now <br />served in over 17,000 restaurants, <br />including fast food staples like <br />Burger King and White Castle