Detailed test results for Keystone Light
Keystone Light has high levels of plastic-related contaminants. We recommend choosing a cleaner alternative from our list. The elevated levels of microplastics, bisphenols, phthalates, and PFAS in this product may pose health concerns with regular consumption.
Products with high contamination levels often use plastic packaging or have plastic components in contact with the beverage. Heat, sunlight, and time can increase the leaching of these contaminants.