Kandiyohi Distilled Water is purified like no other water in the upper Midwest. They steam distill their water. This process is the best proven method in water purification today. This removes the rest of the impurities that even the best (Reverse Osmosis) filtration systems cannot take out. By adding calcium, magnesium & potassium back into our water, they give it a light, crisp clean taste to quench your thirst.