Ci. Frq. Laguna De Duero offers gluten-free products for those with coeliac disease. Ci. Frq. Laguna De Duero stocks leading products by Schär, which are guaranteed gluten-free. Gluten-free products are specifically marked by an ear of wheat with a cross through it. The list of ingredients also indicates whether the product contains gluten. Shop in 100% confidence at Ci. Frq. Laguna De Duero.