The pervious Burn Notice Glencallan sighting took place two seasons ago in the episode entitled "Noble Causes". The latest one is from this season's episode entitled "Acceptable Losses" which aired last month.
Loyal followers of Scotch Cinema should realize that Glencallan is one of several made-up whisky brands (E.g. MacCutcheon & Clyburn) which appear in various films and shows.
Click here for the previous Burn Notice sighting.