Free BBQ Burger at Krystal This post may contain affiliate links. Please see my full disclosure policy for details. July 27, 2011 27 Jul Pin0Share0TweetGoogle+0shares Head over to Krystal on Facebook and you can get a coupon good for a FREE BBQ Burger! Note that this one has a pretty quick expiration date of July 30, 2011. You can find a location near you here.