Kozlik's Canadian Mustard was established in 1948 and has remained family owned and operated to this day, producing hand-made mustard in small batches. Like their process, their recipe has not changed in over 60 years, nor has their commitment to sourcing the finest quality ingredients to make the best-tasting mustard possible. these mustards are made with 100% Canadian mustard seed and locally sourced ingredients as much as possible and are non-GMO, gluten-free, and contain absolutely no additives or preservatives.