You know they sell growlers, right?
They can only sell growlers of the beer that they brew.
you mean they choose to only sell growlers of the beer that they brew, correct?
NO. Under IC 7.1-5-3-1 it must be bottled at the brewery where is was produced or in a contiguous location. EXCEPT at an establishment that is owned by a statewide trade association. IE The Brewers Guild'sTomlinson Tap Room at the City Market in Indianapolis.