(Last Updated On: November 9, 2022)


On November 30th, National Mason Jar Day commemorates an ingenious invention that’s been bringing families together for generations.

Simply by opening a jar of fruit preserves or spicy salsa, we enjoy the flavors of summer in the midst of winter. For those who love to pickle, the Mason jar rescues fruits and veggies from the garden. From green beans to watermelon, we make them sweet or spicy!

While food preservation has existed for centuries, John Landis Mason from New Jersey made home canning safe. The young tinsmith’s patent #22186 for an “Improvement in screwneck bottles” issued a revolutionary design.

Since then, gardeners have been canning. They stocked their pantries from their victory gardens. Some padded their wallets with their heirloom collections. And many more shared their bounty as colorful gifts. Mason jars pull double duty as beautiful DIY projects in shabby chic vases or as an artfully painted desk caddy.

However, we use these versatile vessels, this holiday delight in their existence and their utility.

HOW TO OBSERVE #NationalMasonJarDay

While Mason jars started as a way to preserve the bounty of our gardens, these jars are versatile. They come in a variety of styles, both old and new.

Share all your favorite ways to use Mason Jars. Whether you fill them with your favorite recipes, a miniature fairy garden, or hang them from a chandelier, show your appreciation for the Mason jar. Share your gardening and DIY gifts with friends and neighbors. Host a Mason jar crafting party. Transplant your favorite houseplant into a classic Mason jar and give it as a gift.

However you celebrate, be sure to use #NationalMasonJarDay on social media.


Misty Campbell-Olbert, the founder of Unboxing the Bizarre, founded National Mason Jar Day in 2017 to celebrate a day that should have existed a long time ago! Mason jars are synonymous with ingenuity, independence, and creativity – all things worthy of celebration!

The Registrar at National Day Calendar® proclaimed National Mason Jar Day to be observed annually beginning in 2017.

Mason Jar FAQ

Q. What sizes do Mason jars come in?
A. Mason jars come in a variety of sizes that fit many needs. These are just a few of the most common ones:

4 ounces = 1/4 pint
8 ounces = 1/2 pint
16 ounces = 1 pint
24 ounces = 1.5 pint
32 ounces = 1 quart
64 ounce = 1/2 gallon

Q. Can I put Mason jars in a pressure cooker?
A. Yes. Authentic canning jars are made to withstand pressure canning. You want to make sure you’re using a canning jar and not a recycled peanut butter jar. Follow the canner’s instructions closely and you should have no problems.

Q. What’s the best size Mason jar for collecting my spare change?
A. We recommend the pint jar for collecting spare coins. Anything larger and they will be too heavy for me…I mean…you to haul to the bank.


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