 Common uses include pickling, salsas, sauces, soups, and vinegars.The Cholula brand hot sauce lists piquin peppers and chile de arbol peppers among its ingredients.Pequin peppers are highly valued in Mexico, often costing more than 10 times the price of other peppers, but their cultivation is limited due to low seed germination (15% average germination rate) and susceptibility to disease.