Do Mangrove Jack's kits contain dairy or soy? Sam February 18, 2021 13:17 Updated Yes - Bourbon Barrel Strong Ale. Currently, the only beer or cider kit that contains either dairy or soy is the Bourbon Barrel Strong Ale which contains milk allergen and is stated on the packaging. Related articles Are your beer and cider kits vegan? What malt extract would you suggest for the Mangrove Jacks Pouches? Instructions - Craft Series Cider Pouch Video - Quick Overview - Natural Flavours Boost Range Craft Series Beer, Wine, Cider, Mead Yeast strain information