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To make distilled water, first place a round baking rack in the bottom of a 5-gallon (19-L) stainless steel pot and fill the pot halfway with tap water. Then, place a glass bowl in the water so it floats. Turn the cover to the pot upside down, place it over the pot, and fill it with ice. Bring the water in the pot to a boil and let it boil for around 45 minutes. Replace the ice whenever it melts. The boiling water will turn to steam, rise up, and condense on the cold lid. When it condenses, it will drip back down into the bowl and fill it with distilled water. Once you have enough distilled water, turn off the heat and take off the lid. Use gloves to carefully remove the bowl full of water. Finally, let the distilled water cool before using it. To learn how to make distilled water from rainwater, scroll down!