Science, Tech, Math › Science How Is Distilled Water Made? Share Flipboard Email Print This is a typical equipment set up for double distillation of water. Guruleninn, Creative Commons Science Chemistry Basics Chemical Laws Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate By Anne Marie Helmenstine, Ph.D. Chemistry Expert Ph.D., Biomedical Sciences, University of Tennessee at Knoxville B.A., Physics and Mathematics, Hastings College Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. our editorial process Facebook Facebook Twitter Twitter Anne Marie Helmenstine, Ph.D. Updated February 05, 2019 You can find distilled water in stores and labs. Here's an explanation of what distilled water is and how it's made. Process Distilled water is water purified by boiling the water and collecting the steam. The steam is recovered by condensing the cleaner water vapor into a fresh container. The distillation process removes most impurities, so it is an effective method of water treatment. Distilled Water for Drinking Water Water distillation dates back at least to the time of Aristotle. It has been used to desalinate seawater since at least 200 AD, as outlined by Alexander of Aphrodisias. Drinking water usually is distilled twice or double distilled to ensure high purity. Double distilled water is so clean some researchers are concerned the water may cause health problems because it does not contain natural minerals and ions that are desirable in drinking water.