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How long can you keep distilled water?

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Unopened bottled distilled water from a store lasts basically forever. But stash it away from direct sunlight. And once it's opened, be sure to close it up well after use. Certain germs can grow even in nutrient-poor distilled water.

SOURCES:

U.S. Environmental Protection Agency: “Water Health Series.”

University of Georgia Extension: “Water Quality and Common Treatments for Private Drinking Water Systems.”

International Bottled Water Association: “Types of Water -- Bottled.”

Stanford Magazine : “Don't Drink the Water (From Your Dehumidifier): Nitty-Gritty.”

CDC: “Healthy Water: Medical and Dental Equipment,” “Healthy Water: Water Use in Hemodialysis,” “Background D. Water.”

Cosmeticsinfo.org: “Find an Ingredient: Water.”

Distilled Water Association: “Using Distilled Water For Your Fish Tanks: How to Make It Safe.”

The Distilled Water Company (UK): “How Long Does Distilled Water Last? Shelf Life & Storage Uncovered.” Word Health Organization: “Health Risks from Drinking Demineralized Water.” 

Journal of General Internal Medicine : “Comparison of the Mineral Content of Tap Water and Bottled Waters.”

Seattle Children’s: “Bottle-Feeding (Formula) Questions.”

Nutrients (Switzerland): “Impact of Isotonic Beverage on the Hydration Status of Healthy Chinese Adults in Air-Conditioned Environment.”

Specialty Coffee Association of America: “Water for Brewing Standards.”

Reviewed by Kathleen M. Zelman on July 12, 2019

SOURCES:

U.S. Environmental Protection Agency: “Water Health Series.”

University of Georgia Extension: “Water Quality and Common Treatments for Private Drinking Water Systems.”

International Bottled Water Association: “Types of Water -- Bottled.”

Stanford Magazine : “Don't Drink the Water (From Your Dehumidifier): Nitty-Gritty.”

CDC: “Healthy Water: Medical and Dental Equipment,” “Healthy Water: Water Use in Hemodialysis,” “Background D. Water.”

Cosmeticsinfo.org: “Find an Ingredient: Water.”

Distilled Water Association: “Using Distilled Water For Your Fish Tanks: How to Make It Safe.”

The Distilled Water Company (UK): “How Long Does Distilled Water Last? Shelf Life & Storage Uncovered.” Word Health Organization: “Health Risks from Drinking Demineralized Water.” 

Journal of General Internal Medicine : “Comparison of the Mineral Content of Tap Water and Bottled Waters.”

Seattle Children’s: “Bottle-Feeding (Formula) Questions.”

Nutrients (Switzerland): “Impact of Isotonic Beverage on the Hydration Status of Healthy Chinese Adults in Air-Conditioned Environment.”

Specialty Coffee Association of America: “Water for Brewing Standards.”

Reviewed by Kathleen M. Zelman on July 12, 2019

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