At Orgamug, we believe that what you drink IN is just as important as what you drink and that the cup you choose is directly related to this essential event in life. The safest cups to use are glass and ceramic cups without colored glaze. The unsafest are disposable paper, plastic, and colorful ceramic cups. We also advise against using stainless steel or enamel water cups when drinking acidic beverages such as coffee or orange juice.