How to Wash Mason Jar Lids in Dishwasher?

Last Updated on August 31, 2023 by Lauren Beck

Alright, fellow food enthusiasts, let’s talk practicality in the kitchen: washing mason jar lids in the dishwasher. It’s a simple task, but getting it right matters. 

I’ve navigated the twists and turns, and I’m here to share the scoop on how to keep those lids clean and those flavors fresh.

5 Ways to Wash Mason Jar Lids in Dishwasher

  1. Top Rack Rule: Always place your mason jar lids on the top rack of the dishwasher. This ensures they’re exposed to gentle water pressure and less heat.
  2. Separate and Secure: If you’re using two-piece lids, make sure to separate the flat lid and the screw band. This helps prevent warping and ensures thorough cleaning.
  3. Skip the Heat Dry: Opt for the air-dry setting or simply crack the dishwasher door open after the cycle finishes. High heat can damage the seal of the lids.
  4. Avoid Harsh Detergents: Stick to mild dishwasher detergents. Aggressive chemicals can affect the finish of the lids.
  5. Inspect for Residue: After the cycle, check for any leftover detergent residue on the lids. A quick rinse under warm water can ensure your lids are squeaky clean.

Are Mason Jars Dishwasher Safe?

Yes, mason jars themselves are generally safe for the dishwasher. The sturdy glass can handle the heat and water pressure. 

However, it’s best to keep the lids and screw bands out of the dishwasher to preserve their quality.

What are Mason Jar Lids Made Of?

Mason jar lids have two main parts: the flat lid and the screw band. The flat lid is typically made of metal with a layer of sealing compound to create an airtight seal. 

The screw band, usually made of metal or plastic, secures the flat lid during the canning process.

How To Sterilize Mason Jars In Dishwasher?

While the dishwasher does a great job cleaning, it might not be sufficient for sterilization, especially for canning purposes. 

For sterilizing jars, it’s recommended to run them through a hot water bath or use an oven method to ensure all bacteria and microorganisms are eliminated.

Can I Pour Boiling Water Into a Mason Jar?

Hold on to your culinary horses! It’s best to avoid pouring boiling water directly into a mason jar, especially if it’s cold. 

The extreme temperature difference can cause the glass to crack. Instead, pre-warm the jar with hot tap water before adding boiling liquids.

How Long Will Food Last in a Mason Jar?

Mason Jar Lids

Mason jars are champions at preserving food, but there are limits. Depending on the type of food and proper canning techniques, sealed mason jars can keep food fresh for up to 12 to 18 months. 

However, for optimal quality, it’s recommended to consume the contents within 6 to 12 months.

Are Mason Jars Recyclable?

Yes, mason jars are recyclable, but with a twist. The glass part can usually be recycled, but the metal parts—like the flat lid and the screw band—might need to be separated [1]. 

Check your local recycling guidelines for the specific requirements in your area.


In the symphony of preserving and cleaning, those mason jar lids are the unsung heroes. Dishwasher-bound? Absolutely, but with a few golden rules. Always show love by detaching the parts, bypassing the heat cycle, and opting for gentle detergents. 

Your culinary accomplices, after all, deserve meticulous care, even during their bubble baths. So, whether you’re sealing pickles, bottling jams, or safeguarding sauces, rest assured that a well-cleaned lid equals a fresh start for your gastronomic creations. 

Embrace these practices, and let your mason jars and their trusty lids remain reliable partners in your kitchen escapades.


Lauren Beck
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