- Celestial Seasonings - Some teas are GFCO Certified. They will label each tea either ‘gluten free’ or ‘contains gluten’.
- Republic of Tea - Some teas are GFCO certified.
- Choice Organics - Claim that all of their trees are gluten-free and are made in a gluten free facility. Not certified.
- Traditional Medicinals - Claim that all their ingredients including tea bags are naturally gluten free and they don’t process gluten in their facility.