If you grew up in the South, you’ve probably seen Mason jars in your grandparents’ kitchen filled with fresh tomatoes from the garden, sourdough starter, or your favorite family recipe of homemade jam. But unlike the Ball and Kerr jars you’ve used since childhood, Weck jars have straight sides and a unique latching lid that easily seals on and off for every use. 

These classic jars aren’t just for canning—and they’re taking off on social media with modern ways to repurpose them for delicious summer beverages. Their wide mouths are perfect for making iced coffee, matcha lattes, lemonade, boba tea, and more, and we found the best size for personal servings to keep you feeling refreshed all season. 

This set of Weck’s 743 jars comes with two glass jars and lids, and their medium capacity is just right for mixing cold drinks. They’re made of high-quality glass with rubber gaskets on the lids that create an airtight seal, and their signature straight sides make it simple to drink out of them without spills.

At just under 4 inches in diameter and 5.75 inches tall, they’re large enough to leave plenty of space for mixing drinks, but still small enough to hold comfortably while you sip. Plus, with their easy-pour openings and stylish design, they also make great cocktail jars for serving guests and shaking up your ingredients without switching containers. 

And when you’re not using them for your morning coffee or a freshly mixed jar of homemade lemonade on a hot summer afternoon, you can follow generations of Southerners and try your hand at canning fruits from your garden, making sourdough, or pickling crisp cucumbers straight from the vine. They’re also perfect for steeping tea, making overnight oats, drinking smoothies, and more. 

“These Weck jars are exactly what I was hoping for—sturdy, stylish, and super practical. I’ve been using them to store overnight oats and homemade yogurt, and the airtight seal really keeps everything fresh. Plus, they just look great in the fridge or on the counter,” says one reviewer. “Definitely a step up from your average jar. If you’re into food storage that’s eco friendly and aesthetically pleasing, this set is a win.” 

Along with their convenience, Weck jars are versatile and low maintenance. They’re safe for the freezer and microwave, so they’ll become a flexible staple in your kitchen for every need. After mixing up a serving of your beverage of choice, simply use the lid to store any leftovers in the fridge. When you’re finished, you can toss both the jar and the lid in the dishwasher for easy cleaning. 

While we love these jars for popular modern ideas like matcha and coffee, their classic purposes still hold true—and as hundreds of other five-star reviewers have found, there’s a reason they’re so popular for storing sourdough starters along with mixing drinks, canning, and keeping foods fresh in the fridge. 

“[I] bought these jars for my sourdough, and I honestly can’t get enough of them,” says another reviewer. “You can take the red rubber off to make it not so airtight if need be, which I do for my sourdough starter. I love that you can use these to can things, mix in them, put sourdough starter in there, and even drink out of them. Highly recommend!” 

If you’re still looking for the perfect jars to mix up your morning iced coffee or make personal servings of lemonade, check out more of our favorite glass jars for summer drinks on Amazon below.