Science, Tech, Math › Science Expiration Dates for Household Chemicals Share Flipboard Email Print Jody Dole / Getty Images Science Chemistry Chemistry In Everyday Life Basics Chemical Laws Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry 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 28, 2020 Some common everyday chemicals last indefinitely, but others have a shelf life. This is a table of expiration dates for several household chemicals. In some cases, the chemicals have a shelf life because the product accumulates bacteria or breaks down into other chemicals, rendering it ineffective or potentially dangerous. In other cases, the expiration date is related to diminished effectiveness over time. One interesting chemical on the list is gasoline. It's really only good for about 3 months, plus the formulation may change depending on the season. Expiration Dates for Common Chemicals Chemical Expiration Date air freshener spray 2 years antifreeze, mixed 1 to 5 years antifreeze, concentrated indefinitely baking powder unopened, indefinitely if properly stored opened, test by mixing with water baking soda unopened, indefinitely if properly stored opened, test by mixing with vinegar batteries, alkaline 7 years batteries, lithium 10 years bath gel 3 years bath oil 1 year bleach 3 to 6 months conditioner 2 to 3 years dish detergent, liquid or powder 1 year fire extinguisher, rechargeable service or replace every 6 years fire extinguisher, nonrechargeable 12 years furniture polish 2 years gasoline, no ethanol several years, if properly stored gasoline, with ethanol from date of manufacture, 90 days in your gas tank, about a month (2-6 weeks) honey indefinitely hydrogen peroxide unopened, at least one year opened, 30-45 days laundry detergent, liquid or powder unopened, 9 months to 1 year opened, 6 months metal polish (copper, brass, silver) at least 3 years Miracle-Gro, liquid unopened, indefinitely opened, 3 to 8 years motor oil unopened, 2 to 5 years opened, 3 months Mr. Clean 2 years paint unopened, up to 10 years opened, 2 to 5 years soap, bar 18 months to 3 years spray paint 2 to 3 years vinegar 3-1/2 years Windex 2 years Cite this Article Format mla apa chicago Your Citation Helmenstine, Anne Marie, Ph.D. "Expiration Dates for Household Chemicals." ThoughtCo, Feb. 16, 2021, thoughtco.com/expiration-dates-for-household-chemicals-606802. Helmenstine, Anne Marie, Ph.D. (2021, February 16). Expiration Dates for Household Chemicals. Retrieved from https://www.thoughtco.com/expiration-dates-for-household-chemicals-606802 Helmenstine, Anne Marie, Ph.D. "Expiration Dates for Household Chemicals." ThoughtCo. https://www.thoughtco.com/expiration-dates-for-household-chemicals-606802 (accessed April 21, 2021). copy citation Does Alcohol Go Bad? How to Substitute for Baking Powder and Baking Soda Bleach Facts (Answers to Common Questions) How to Apply for Food Stamps, the SNAP Program What Is Cream of Tartar or Potassium Bitartrate? How to Test Baking Powder and Baking Soda for Freshness Chlorine Bleach Shelf Life Examples of Physical Changes and Chemical Changes Does Bottled Water Go Bad? Common Household Chemicals That Are Dangerous Mixtures Chemical Additives in Foods You Eat Examples of Chemical Reactions in Everyday Life Learn the pH of Common Chemicals Dangerous Household Chemicals Make Ammonium Nitrate from Household Chemicals What Is the Most Flammable Chemical?