This is the original recipe by Colgin, Natural Hickory. In 1869 the first smokehouse was built in Mexia, Texas. Colgin is the all-natural liquid smoke with no additives or preservatives. Colgin is Vegan, contains no animal by-products and is gluten free. Colgin is the instant answer for adding smoke flavour to almost any food that would benefit from real smoke flavour and aroma.