how to dispose of vinegar

How to Dispose of Vinegar: Easy Options & Alternative Ideas

I’ve been there — organizing the kitchen cupboards only to discover a long-forgotten half-used bottle of vinegar somewhere at the back. Do you use it? Do you pour it down the drain? Do you just throw it away? You’ll find the answers below. 

In this article, we’ll give you the full guide on how to dispose of vinegar and some ideas on what you can do with it instead. 

Does Vinegar Get Old?

Vinegar doesn’t go “bad” or spoil like other foods but can change and degrade over time. Here are some changes you might see in an old bottle of vinegar:

  • Less flavor and aroma: Over time, vinegar gets less potent, even more so if you have white wine or champagne vinegar.
  • Sediment or cloudiness: It’s a sign of natural processes, like the formation of harmless bacterial cellulose, which can form in unpasteurized or raw vinegar.
  • Darker color: Some types of vinegar can get darker as they age. For example, balsamic vinegar can become more concentrated and darker over time.
  • Sealed vs Opened Bottles: Unopened vinegar stored in a cool, dark place can last for a very long time, often years or even decades. Once you open a bottle though, its shelf life will be somewhat shorter but can still last several years if you store it properly.

Even if vinegar’s flavor changes over time, it’s generally safe to use. This is because its acidic nature prevents the growth of most bacteria and microorganisms. If you notice unusual or off-putting odors, mold, or other worrying signs, it’s best to discard the vinegar following the tips below.

How to Dispose of Vinegar

If you’re strongly opposed to using expired vinegar, have an excess amount, or simply want to dispose of it responsibly, you have several options:

Can Vinegar Go Down the Drain?

Yes, vinegar can go down the drain as long as it’s not a large amount (more than 25 ounces). It’s a weak acid and is generally safe for most plumbing systems. That’s one of the easiest ways to dispose of small quantities of vinegar.

Important Note: Run plenty of cold water while pouring the vinegar down the drain to dilute it and prevent any potential damage to pipes. It’s a small chance, but you better play it safe.

Can I Dump Vinegar Outside?

It’s not the best option, but you can dump vinegar outside with a few caveats:

  • Check the label for additives. Some specialty vinegars may have additives that aren’t environmentally friendly.
  • Dumping an excessive amount of vinegar outside can affect the soil pH and potentially harm plants and aquatic life. In this case, you should dilute it.
  • Do not dump vinegar near sensitive ecosystems, bodies of water, or areas with fragile plant life. These environments are more susceptible to pH changes and could be harmed by the acid.

Remember that responsible disposal of vinegar is essential to protect the environment and adhere to local regulations.

balsamic vinegar

How to Dilute Vinegar

If you want to know how to get rid of vinegar, you can dilute it to make it less acidic and safe for disposal.

You’ll need:

  • Vinegar
  • Water
  • A measuring cup or container

If you’re diluting vinegar for safe disposal, you can use a high ratio, such as 1 part vinegar to 3 parts water. This significantly reduces the acidity.


  1. Use the measuring cup or container to assess the appropriate amount of vinegar and water.
  2. Mix it well. Combine the measured vinegar and water in a container. Stir or shake the container to ensure thorough mixing. This will create a well-diluted vinegar solution.
  3. Pour the diluted solution down the drain. If you have only a small amount of common household vinegar (e.g., white vinegar, apple cider vinegar), you can pour it down the drain.

Depending on where you live, you might want to check out local regulations before dumping the expired white vinegar down the drain. Some areas may have restrictions on that, especially if you have a septic system or live in an area with specific environmental concerns.

What to Do With Expired Vinegar

Expired vinegar, in most cases, isn’t harmful to consume, but its quality and flavor may degrade over time. If you have expired vinegar and don’t want to use it for culinary purposes, here are some alternative ideas:

  • Household cleaning solution: Expired vinegar can still be a useful cleaning solution. Its acidity makes it effective for cleaning and removing stains. Dilute it with water and use it for cleaning countertops, glass, and other surfaces. You can also use vinegar to remove mold from your water bottle.
  • Pest & Weed Killer: If you have expired white vinegar, you can use it as a natural weed killer. Mix it with water (usually a 1:1 ratio) and spray it on weeds in your garden or driveway.
  • Plant Care: You can use a small amount of expired vinegar to adjust the soil pH for certain plants that prefer slightly acidic conditions, like azaleas and rhododendrons. But be cautious and test it on a small area first.
  • Insect Repellant: Vinegar is a natural insect repellent for plants or for fruit flies.
  • Fabric Softener: You can use a small amount of expired vinegar as a natural fabric softener in your laundry. Add it to the rinse cycle or use a vinegar-filled fabric softener dispenser in your washing machine.
  • Hair Rinse: Did you know that vinegar can help your hair by making it more shiny and manageable? Dilute the expired vinegar with water and use it as a hair rinse. Just don’t use it too much or too frequently, as it may have a strong odor. You don’t want your hair smelling like vinegar. I hope.
  • Art and Craft Projects: You can use expired vinegar for tie-dyeing and Easter egg dyeing.

There are quite a lot of things to do with vinegar, even if it’s expired. So don’t throw it away just yet.

This acid is incredibly versatile as a cleaning solution or for stain removal. For instance, you can use vinegar to get rid of olive oil stains on your clothes. Alternatively, if you’re using it for cleaning, always dilute it with water to reduce its acidity and ensure that it doesn’t leave a strong odor.

Don’t Forget to Recycle the Bottle

After the vinegar disposal, you should also dispose of the bottle in a responsible way. Here are the guidelines:

  1. Check for residue: If there’s any residual vinegar left, rinse the bottle with water to remove it.
  2. Remove the Label: You can often peel off the label, but if you can’t, try using warm, soapy water to clean the bottle.
  3. Check for Recycling Symbols: Look for recycling symbols on the bottle. Most common vinegar bottles are made of clear or green glass, which is highly recyclable.
  4. Separate the Cap: If your vinegar bottle has a plastic or metal cap, you should recycle it separately. Caps are often made of different materials than glass bottles.
  5. Reuse or Repurpose: If you’re feeling creative, you can also repurpose empty vinegar bottles for various DIY projects or as decorative items around your home.

Recycling glass is an environmentally friendly way to dispose of vinegar bottles. Proper recycling helps reduce waste and conserves resources.

How to Maximize the Shelf Life of Vinegar

  • Keep it in a cool, dark place, away from direct sunlight and heat.
  • Seal the bottle tightly to prevent air from entering as that can cause oxidation and changes in quality.
  • Consider storing your vinegar in the refrigerator to maintain its quality and flavor for an extended period.


Is vinegar a hazardous waste?

Common household vinegar (e.g., white vinegar or apple cider vinegar) is not a hazardous waste. However, certain specialty vinegar products, like industrial cleaning solutions or those with toxic additives, can be hazardous waste.

Should I throw away expired vinegar?

Generally, no, you don’t need to throw away expired vinegar unless it has a noticeable change in appearance or contains harmful substances. You can repurpose expired vinegar for cleaning or gardening. Check our suggestions above.

What can I do with expired balsamic vinegar?

You can use expired balsamic vinegar for cleaning or as a natural household deodorizer. It’s effective for removing stains, and its pleasant aroma can help freshen the air. Just dilute it with water and use it for cleaning surfaces or as a deodorizing spray.

Can I use balsamic vinegar to unclog the toilet?

No, balsamic vinegar is not a suitable substitute for traditional toilet unclogging methods. Instead, use a plunger or a specialized toilet auger to clear the clogs effectively and without causing any damage.

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