Utsil Naj The Utsil Naj program, in Mexico, Guatemala and Honduras, uses clean cooking technology to help families enjoy their traditional food in a healthy and sustainable way. Projects UTSIL NAJ - MexicoCommunities in Mexico implement clean cooking technology to reduce pollution and prevent deforestation. UTSIL NAJ - HondurasClean cooking technology is helping families in Honduras improve their health and fight climate change. UTSIL NAJ - GuatemalaClean cooking technology is helping families in Guatemala to enjoy their traditional food in a more sustainable way.