According to the United States Department of Agriculture Food Safety and Inspection Service, the glue and ink on brown bags are not intended for use as cooking materials and may give off harmful fumes. In addition, brown bags are usually made from recycled materials and are not sanitary.
According to the United States Department of Agriculture Food Safety and Inspection Service, the glue and ink on brown bags are not intended for use as cooking materials and may give off harmful fumes. In addition, brown bags are usually made from recycled materials and are not sanitary.
In a nutshell, do not use them.