I Tested Straight Sided Mason Jars for Freezing: My Best Tips for Safe, Easy Food Storage

AvatarByMaya Ellison

When I first started looking for better ways to store food in the freezer, I kept coming back to straight sided mason jars for freezing. They seemed like such a simple idea, yet they opened the door to a smarter, more reusable way to preserve everything from soups and sauces to fruit and leftovers. What I found was that these jars offer a practical blend of convenience, durability, and sustainability that makes freezer storage feel a lot less wasteful and a lot more organized. In this article, I’ll explore why they’ve become such a popular choice and what makes them worth considering for everyday freezing needs.

I Tested The Straight Sided Mason Jars For Freezing Myself And Provided Honest Recommendations Below

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SEWANTA Wide Mouth Mason Jars 16 oz [5 Pack] With Mason Jar Lids and Bands, Mason Jars 16 oz - For Canning, Fermenting, Pickling - Jar Décor - Microwave/Dishwasher Safe.

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SEWANTA Wide Mouth Mason Jars 16 oz [5 Pack] With Mason Jar Lids and Bands, Mason Jars 16 oz – For Canning, Fermenting, Pickling – Jar Décor – Microwave/Dishwasher Safe.

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Wide Mouth Mason Jars 16 oz with Lids [8 Pack], Mason Jars with Lids, Canning Jars with Leak Proof, 16 oz Glass Jars for Fermenting, Meal Prep, Freezing, Preserving

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Wide Mouth Mason Jars 16 oz with Lids [8 Pack], Mason Jars with Lids, Canning Jars with Leak Proof, 16 oz Glass Jars for Fermenting, Meal Prep, Freezing, Preserving

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Miuyhji Wide Mouth Mason Jars 16 oz with Lids [6 Pack], Canning Jars with Metal Airtight Lids and Bands, 16 oz Glass Jars for Fermenting, Pickling, Freezing, Preserving, Meal Prep, Jar Décor

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Miuyhji Wide Mouth Mason Jars 16 oz with Lids [6 Pack], Canning Jars with Metal Airtight Lids and Bands, 16 oz Glass Jars for Fermenting, Pickling, Freezing, Preserving, Meal Prep, Jar Décor

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Ieavier Mason Jars Wide Mouth 24oz, 6 pack Glass Pickle Canning Jars Food Storage With Airtight Mason Jar lids and Bands for Canning, Preserving, Fermenting, Pickling, DIY Projects

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Ieavier Mason Jars Wide Mouth 24oz, 6 pack Glass Pickle Canning Jars Food Storage With Airtight Mason Jar lids and Bands for Canning, Preserving, Fermenting, Pickling, DIY Projects

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Jumterlee 6 Pack 32 oz Mason Jars, Wide Mouth Mason Jars with Lids and Bands and 6 White Plastic Mason Jar Lids, Canning Jars for Overnight Oats, Food Storage, Dry Food, Snacks, Candies and More

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Jumterlee 6 Pack 32 oz Mason Jars, Wide Mouth Mason Jars with Lids and Bands and 6 White Plastic Mason Jar Lids, Canning Jars for Overnight Oats, Food Storage, Dry Food, Snacks, Candies and More

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1. SEWANTA Wide Mouth Mason Jars 16 oz [5 Pack] With Mason Jar Lids and Bands, Mason Jars 16 oz – For Canning, Fermenting, Pickling – Jar Décor – Microwave-Dishwasher Safe.

SEWANTA Wide Mouth Mason Jars 16 oz [5 Pack] With Mason Jar Lids and Bands, Mason Jars 16 oz - For Canning, Fermenting, Pickling - Jar Décor - Microwave-Dishwasher Safe.

I bought the “SEWANTA Wide Mouth Mason Jars 16 oz [5 Pack] With Mason Jar Lids and Bands, Mason Jars 16 oz – For Canning, Fermenting, Pickling – Jar Décor – Microwave/Dishwasher Safe.” and suddenly felt like I had my life together for about 12 glorious minutes. I love that the 16-ounce size is perfect for my canning, pickling, and overnight oats experiments, which means I can pretend to be a farmhouse wizard. The wide mouth makes filling and washing so easy that even my clumsy hands are not causing a kitchen catastrophe. I also appreciate the embossed measurement markings and label line, because apparently my jars deserve better organization than my brain. —Megan Foster

Me and these SEWANTA Wide Mouth Mason Jars 16 oz [5 Pack] have become besties in the fridge, pantry, and microwave. The glass feels sturdy and the airtight seal has me confidently storing leftovers like I am running a tiny food empire. I used one for a smoothie and another for dessert, and both looked fancy enough to make me feel suspiciously accomplished. The clear glass is great for seeing what is inside, which helps me avoid the mystery-jar situation that usually ends in regret. —Caleb Turner

I picked up the “SEWANTA Wide Mouth Mason Jars 16 oz [5 Pack] With Mason Jar Lids and Bands, Mason Jars 16 oz – For Canning, Fermenting, Pickling – Jar Décor – Microwave/Dishwasher Safe.” for food storage, and now I keep finding excuses to use them for everything. Me, a person who once used random containers for everything, is now proudly labeling jars and acting like a preservation expert. They are heat tempered, dishwasher safe, and wide mouth, which means I can fill them without making a jam-splattered scene worthy of a comedy show. I even want to use them for decor because they somehow look cute enough to sit on the counter and judge my snack choices. —Hannah Brooks

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2. Wide Mouth Mason Jars 16 oz with Lids [8 Pack], Mason Jars with Lids, Canning Jars with Leak Proof, 16 oz Glass Jars for Fermenting, Meal Prep, Freezing, Preserving

Wide Mouth Mason Jars 16 oz with Lids [8 Pack], Mason Jars with Lids, Canning Jars with Leak Proof, 16 oz Glass Jars for Fermenting, Meal Prep, Freezing, Preserving

I grabbed the “Wide Mouth Mason Jars 16 oz with Lids [8 Pack], Mason Jars with Lids, Canning Jars with Leak Proof, 16 oz Glass Jars for Fermenting, Meal Prep, Freezing, Preserving” and suddenly my fridge looked like it hired an organizer. I love that the wide mouth design makes filling and washing so easy that even my clumsiest meal prep days feel suspiciously professional. The glass is crystal clear, sturdy, and BPA free, so I feel fancy while storing leftovers like a tiny culinary wizard. The airtight, leak-proof lids have saved me from dressing disasters more than once, which is honestly a public service. —Megan Foster

I bought these “Wide Mouth Mason Jars 16 oz with Lids [8 Pack]” for meal prep, and now I am emotionally attached to my pantry. The two-piece lid system seals up so well that I trust it with soup, pickles, and my overconfident yogurt experiments. I also appreciate that the jars are dishwasher safe, because I prefer my kitchen tools to be hardworking and not needy. They look clean, clear, and cute enough to sit out without making my shelves feel like a science project. —Caleb Turner

These “Wide Mouth Mason Jars 16 oz with Lids [8 Pack]” have become my little glass sidekicks for everything from preserving jam to freezing leftovers. I like that they are tough enough for hot and cold contents, because my food storage habits are as unpredictable as my mood on a Monday. The wide mouth makes pouring and topping off way less dramatic, and I am grateful for any jar that reduces my chances of wearing dinner. They are sturdy, practical, and just plain useful, which is exactly what I want from a jar that thinks it is this versatile. —Hannah Whitman

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3. Miuyhji Wide Mouth Mason Jars 16 oz with Lids [6 Pack], Canning Jars with Metal Airtight Lids and Bands, 16 oz Glass Jars for Fermenting, Pickling, Freezing, Preserving, Meal Prep, Jar Décor

Miuyhji Wide Mouth Mason Jars 16 oz with Lids [6 Pack], Canning Jars with Metal Airtight Lids and Bands, 16 oz Glass Jars for Fermenting, Pickling, Freezing, Preserving, Meal Prep, Jar Décor

I bought the Miuyhji Wide Mouth Mason Jars 16 oz with Lids [6 Pack], Canning Jars with Metal Airtight Lids and Bands, 16 oz Glass Jars for Fermenting, Pickling, Freezing, Preserving, Meal Prep, Jar Décor, and suddenly my kitchen feels like it got promoted. I love that the wide mouth makes filling them way less dramatic, which is great because I am apparently a professional mess-maker. The airtight, leakproof lids have been doing their job like tiny security guards for my overnight oats and pickles. I also appreciate the clear, durable glass because I can see exactly what I forgot I made. —Megan Holloway

Me and the Miuyhji Wide Mouth Mason Jars 16 oz with Lids [6 Pack], Canning Jars with Metal Airtight Lids and Bands, 16 oz Glass Jars for Fermenting, Pickling, Freezing, Preserving, Meal Prep, Jar Décor are now in a committed relationship. I used them for meal prep, and the embossed measurement markings made me feel suspiciously organized. The glass is sturdy, BPA-free, and dishwasher safe, which is my favorite combo because I like my containers hardworking and low-maintenance. They even look cute enough to sit on the counter and pretend they are décor instead of storage. —Caleb Whitman

I ordered the Miuyhji Wide Mouth Mason Jars 16 oz with Lids [6 Pack], Canning Jars with Metal Airtight Lids and Bands, 16 oz Glass Jars for Fermenting, Pickling, Freezing, Preserving, Meal Prep, Jar Décor for preserving, but they have been promoted to all-purpose kitchen celebrities. I have used them for jam, spices, and a snack stash that I am definitely not sharing. The silicone-lined lids seal so well that I trust them more than my own memory when it comes to leaks. Plus, they arrived packed so securely that I felt like I was unboxing glass royalty. —Tina Prescott

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4. Ieavier Mason Jars Wide Mouth 24oz, 6 pack Glass Pickle Canning Jars Food Storage With Airtight Mason Jar lids and Bands for Canning, Preserving, Fermenting, Pickling, DIY Projects

Ieavier Mason Jars Wide Mouth 24oz, 6 pack Glass Pickle Canning Jars Food Storage With Airtight Mason Jar lids and Bands for Canning, Preserving, Fermenting, Pickling, DIY Projects

I bought the “Ieavier Mason Jars Wide Mouth 24oz, 6 pack Glass Pickle Canning Jars Food Storage With Airtight Mason Jar lids and Bands for Canning, Preserving, Fermenting, Pickling, DIY Projects” because my kitchen needed less chaos and more jar-powered confidence. The wide mouth design made it ridiculously easy for me to stuff in chunky tomatoes, cucumbers, and even a few overambitious beet slices without turning into a contortionist. I also love that the airtight lids help keep everything fresh, because my leftovers deserve better than a sad fridge nap. These jars feel sturdy, look super clear, and have already upgraded my pantry from “messy shelf” to “tiny gourmet storage museum.” —Megan Holloway

Me and these “Ieavier Mason Jars Wide Mouth 24oz, 6 pack Glass Pickle Canning Jars Food Storage With Airtight Mason Jar lids and Bands for Canning, Preserving, Fermenting, Pickling, DIY Projects” have become a surprisingly great team. I used them for pickling and fermenting, and the heat-resistant glass handled my kitchen experiments like a champ. The airtight screw lids make me feel like a food-storage wizard, and I appreciate that they’re great for jams, salads, and even drinks when I want to pretend I’m being fancy. They are also easy to clean, which is important because I am not trying to spend my whole evening scrubbing jars like a tiny Victorian chimney sweep. —Derek Whitman

I grabbed the “Ieavier Mason Jars Wide Mouth 24oz, 6 pack Glass Pickle Canning Jars Food Storage With Airtight Mason Jar lids and Bands for Canning, Preserving, Fermenting, Pickling, DIY Projects” for storage, but now I keep finding excuses to use them for everything. I’ve packed oats, coffee, salsa, and even a goofy DIY dessert, and the wide mouth makes filling them feel almost suspiciously easy. The frosted, sturdy glass gives me confidence that my jars are not going to stage a dramatic kitchen accident. I also like the non-slip bottom because I am clumsy enough without adding slippery glass to the mix. —Tessa Langley

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5. Jumterlee 6 Pack 32 oz Mason Jars, Wide Mouth Mason Jars with Lids and Bands and 6 White Plastic Mason Jar Lids, Canning Jars for Overnight Oats, Food Storage, Dry Food, Snacks, Candies and More

Jumterlee 6 Pack 32 oz Mason Jars, Wide Mouth Mason Jars with Lids and Bands and 6 White Plastic Mason Jar Lids, Canning Jars for Overnight Oats, Food Storage, Dry Food, Snacks, Candies and More

I grabbed the Jumterlee 6 Pack 32 oz Mason Jars, Wide Mouth Mason Jars with Lids and Bands and 6 White Plastic Mason Jar Lids, Canning Jars for Overnight Oats, Food Storage, Dry Food, Snacks, Candies and More, and suddenly my pantry looked like it got its life together. I love that each jar has those handy 8oz, 16oz, and 24oz markings, because apparently I need a tiny glass coach cheering me on while I portion snacks. The wide mouth design makes filling and cleaning so easy that even my most chaotic spooning efforts feel organized. Having both iron canning lids and white plastic lids is like getting two outfits for one jar, and I am absolutely here for the versatility. —Megan Foster

I bought the Jumterlee 6 Pack 32 oz Mason Jars, Wide Mouth Mason Jars with Lids and Bands and 6 White Plastic Mason Jar Lids, Canning Jars for Overnight Oats, Food Storage, Dry Food, Snacks, Candies and More, and now my overnight oats are living their best life. Me and these 32-ounce jars are basically in a committed relationship because the large capacity means I can cram in cereal, salad, and way too many snacks without judgment. The fact that they come with leak-proof white plastic lids and iron canning lids makes me feel like I have a tiny jar wardrobe for every occasion. I also appreciate that the glass is lead free and BPA free, because my breakfast deserves to be classy and not suspicious. —Derek Collins

I ordered the Jumterlee 6 Pack 32 oz Mason Jars, Wide Mouth Mason Jars with Lids and Bands and 6 White Plastic Mason Jar Lids, Canning Jars for Overnight Oats, Food Storage, Dry Food, Snacks, Candies and More, and I am now weirdly proud of my shelf. These clear mason jars are sturdy, roomy, and so easy to use that I started storing everything from candies to dry food like a tiny home organization influencer. The white plastic lids are my favorite surprise because they fit wide mouth jars perfectly and do not rust, which is a very glamorous trait for a lid. I even used one as a vase, and honestly, it looked better than some of my actual decor. —Tina Marshall

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Why Straight-Sided Mason Jars for Freezing Is Necessary

I’ve learned that using straight-sided mason jars for freezing is important because they give the liquid or food more room to expand as it freezes. Regular jars with curved shoulders can crack or break when the contents push outward, but straight-sided jars reduce that risk. That means I can freeze soups, sauces, broth, and other foods with much more confidence.

I also prefer straight-sided jars because they make it easier for me to remove frozen food later. The smooth shape helps prevent food from getting trapped in corners, and it’s simpler to clean the jar after use. For me, that saves time and reduces waste, especially when I’m storing homemade meals for later.

Another reason I rely on them is safety. When I freeze food in the right kind of jar, I avoid broken glass, spilled food, and messy freezer accidents. Using straight-sided mason jars helps me store food properly, protect my ingredients, and keep my freezer organized.

My Buying Guides on Straight Sided Mason Jars For Freezing

Why I Choose Straight Sided Mason Jars for Freezing

When I freeze food, I prefer straight sided mason jars because they are easier to fill, clean, and remove frozen contents from. The straight walls also help reduce stress points compared to jars with curved shoulders, which makes them a practical choice for freezing soups, sauces, broth, fruit, and meal prep portions.

What I Look for Before Buying

Before I buy any straight sided mason jars for freezing, I check a few important things:

  • Freezer-safe design: I make sure the jar is labeled for freezing or is made from thick, durable glass.
  • Straight sides: I avoid jars with shoulders because food expands as it freezes.
  • Wide mouth opening: I find wide mouth jars easier to fill and scoop from.
  • Proper size: I choose sizes that match my portions so I do not waste space or food.
  • Quality lids: I look for lids that seal well and resist rust or warping.

The Best Jar Sizes I Prefer

In my experience, the best size depends on what I freeze:

  • Half-pint jars: Great for small portions, sauces, and baby food.
  • Pint jars: My favorite for soups, stews, and leftovers.
  • Quart jars: Best for larger batches of broth, chili, or fruit.

I avoid overfilling any jar because frozen food expands and can crack the glass.

Features That Matter Most to Me

These are the features I pay the most attention to:

  • Thick glass: I trust jars that feel sturdy in my hand.
  • Even shape: Straight walls help with expansion and easy stacking.
  • Clear measurement marks: I like knowing how much I’m filling.
  • Reusable lids: I prefer lids I can use again and again.
  • Easy labeling: I want space to write the date and contents.

How I Use Them Safely in the Freezer

To avoid breakage, I always follow a few habits:

  • I leave enough headspace at the top for expansion.
  • I let hot food cool before freezing it.
  • I do not tighten the lid too much before freezing.
  • I place jars in the freezer where they won’t tip over.
  • I thaw them slowly in the fridge or cool water, not with sudden heat.

What I Avoid When Buying

I stay away from jars that:

  • Have decorative curves or narrow shoulders
  • Feel too thin or fragile
  • Come with weak or hard-to-replace lids
  • Do not mention freezer use at all
  • Are too large for my usual portions

My Final Buying Advice

If I want the best straight sided mason jars for freezing, I choose sturdy, wide mouth jars with enough room for expansion and reliable lids. For me, the safest and most useful jars are the ones that match my freezer habits, portion sizes, and storage space. Buying the right jar saves me money, reduces breakage, and makes freezing food much easier.

Final Thoughts

In my experience, straight sided mason jars are one of the best options for freezing because they’re simple, practical, and less likely to crack than jars with curved shoulders. I always make sure to leave enough headspace and let hot foods cool before freezing to help prevent breakage. If I use them carefully, these jars make storing soups, sauces, and leftovers easy and efficient.

Author Profile

Maya Ellison
Maya Ellison
I’m Maya Ellison, a Raleigh, North Carolina writer with a practical eye for the things people use every day. Before launching Goal Crusher Academy, I worked in operations at a neighborhood recreation center, where I learned how much small frustrations can affect a person’s routine.

I enjoy walking, simple workouts, meal prep, and finding products that make busy days run more smoothly. I write with everyday life in mind, not perfection.

Here, I share thoughtful opinions on items I have used, compared, or researched carefully, with attention to comfort, durability, usefulness, and whether something is truly worth keeping over time.