Klepper & Klepper have produced the perfect soft mild salt black liquorice, using Celtic sea salt, extracted from the salt marshes of the French Guérande peninsula. This sea salt isn’t washed, dried or refined, preserving all the minerals present. Some say Celtic sea salt is the healthiest salt in the world. Of all the salts extracted globally, it has the lowest sodium content and mildest taste, making it just perfect for a mildly salty licorice candy. using Celtic sea salt, . Gelatin and gluten free.