When we bake our breads in pans, we have to use a release agent. In some situations that is a pan spray. Most pan sprays contain soy, which has been identified as one of the major food allergens. Because a trace amount of the pan spray may transfer to the exterior of the bread, we list it in the ingredients. Please contact your neighborhood Breadsmith and ask to speak to the store owner or manager to find out if they use a pan spray that contains soy.