Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.
If you want the short answer: buy a jar with a two-piece metal lid (a flat disc plus a screw band) and a wide opening, and skip anything with a thin ring that dents. That single combination decides whether your jam, pickles, or starter actually keeps, and whether you can get a spoon to the bottom without fighting the jar. One thing to know before you scroll: this list treats 12 oz as the target size, and since listings sometimes offer the nearest same-type size as a selectable option, not every pick is the exact number you typed into the search bar — but every one serves the same job. The good news is that these nine cover the whole range, from a light four-pack for starter to a workhorse set for a full canning afternoon.
I’m Mo Min — the founder and writer behind Non Toxic Blog. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
The Ritayedet 20-pack earns 4.7 stars across 900+ ratings and is the one most people should start with. Below you get nine tested-by-owners picks, plus what actually matters when you buy 12 oz canning jars.
Our Picks at a Glance
How To Choose The Best 12 Oz Canning Jars
Three things separate a jar you keep for a decade from one that leaks in the pantry: the lid type, the mouth width, and how the glass behaves under heat and cold. Everything else is decoration.
Lid type decides whether food keeps
A regular-mouth jar takes a narrow lid and a wider band, which is the classic canning setup. A screw-top or twist-lock lid works well for dry goods and everyday fridge storage but is not built for a water-bath seal (a hot-water bath that vacuum-seals jars). A glass lid held down by metal clamps and a rubber gasket (a soft ring that creates an airtight seal) is the old European system — great for sourdough and pickling, but the gasket is the part that eventually wears out, so buy a jar whose replacement parts you can actually source.
Mouth width changes your daily routine
Regular-mouth jars measure roughly 2.59 to 2.75 inches across the opening. Wide-mouth jars run closer to 100mm. If you are scooping sticky starter out with a spatula, or fitting whole green beans in one at a time, the wide opening saves you real minutes. If you are filling jars with a ladle for jam, the narrow opening keeps the rim clean.
Heat, cold, and headroom
Glass tolerates a dishwasher and a freezer, but not a sudden change between the two. If you freeze, fill only partway and leave space for the liquid to expand — one of the picks here calls for stopping at 8 oz in a 12 oz jar, another at 10 oz. Avoid pouring boiling water straight into a cold jar; warm it first.
Quick Comparison
| Model | Best For | Pack Size | Lid System | Mouth / Opening | Amazon |
|---|---|---|---|---|---|
| Ritayedet 12oz Glass Jars with Lids★ Best Overall | Candle and jam makers who want a luxe look | 20 pack | Twist Lock | 2.24″ | Amazon |
| Eathtek 12 oz Mason Jars 20 PackBest Gift Kit | Gift jars with labels and twine included | 20 pack | Twist Lock, two lid types | Regular mouth | Amazon |
| Lyellfe 12 Pack Wide Mouth Mason JarsBest Wide Mouth | Stirring and scooping straight from the jar | 12 pack | Twist Lock | Wide mouth | Amazon |
| Jaisie.W 12 oz Mason Jars 20 Pack | Fridge pickles and everyday storage | 20 pack | Two-piece metal lid, silicone gasket | 2.75″ regular mouth | Amazon |
| Mcupper 12oz Glass Mason Jars 15 Pack | Gift-ready kits in a mid-size batch | 15 pack | Silver split lid (band + disc) | 2.59″ regular mouth | Amazon |
| STARSIDE 12oz Glass Embossed Mason Jars | Gifting and showing off on the shelf | 20 pack | Two-piece metal lid | Regular mouth | Amazon |
| Freshmage Sourdough Starter Jars 12 oz | Starter, yogurt, and daily use | 4 pack | Glass lid with gasket plus plastic lid | Wide mouth | Amazon |
| Flrolove Mason Jars 12 oz | Big batches on a tight budget | 24 pack | Screw lid | Wide mouth | Amazon |
| Le Parfait Familia Wiss 12oz | Long-term canning and zero-plastic kitchens | 4 pack | Two-piece: sealing cap + screw lid | 100mm | Amazon |
In‑Depth Reviews
1. Ritayedet 12oz Glass Jars with Lids, 20 Pack
Our pick — over 4.5★ from 900+ verified ratings; the strongest balance of quality and price.
The 20-pack that makes a whole holiday’s worth of gifts in one sitting
What wins people over here is the consistency of the glass — the kind of quality that turns a casual candle maker into a repeat buyer. Each jar holds 12 oz with a 2.24-inch opening, measures 2.87 inches across and 4.29 inches tall, and arrives with a twist-lock metal lid, a set of blank black stickers for labeling, and a clear glass body that shows off whatever you pour in. Corrosion-resistant, leak-proof lids mean you can repurpose them for honey or dressing without worrying about the metal reacting.
The people who buy these are overwhelmingly making candles, and the reviews read like a small business testimony page. As buyers report, “These are perfect for candles. Lids seal nicely, just add a ribbon and complete the Holiday look.” Multiple owners describe them as affordable jars that give a product a luxe look, which is exactly the gap this pack fills in the market. At 0.4 kg total, it is also dramatically lighter to handle than the 4.56 kg Eathtek 20-pack on this list — an 11.4x gap that matters when you are moving a case from the counter to the shelf.
The honest catch is the durability consensus, which splits rather than unites. Most owners find the glass sturdy, but a handful report cracks when handled roughly, and a small number find the lids harder to seal than a classic two-piece band. Treat the jars gently during washing and this is not a problem. Worth noting: it does not carry the wide-mouth 100mm opening of the Le Parfait further down, so if you are scooping thick starter, pick that one instead.
The reasons it earns the top spot
- 20 jars with 12 oz capacity each, plus blank black stickers included
- Corrosion-resistant, leak-proof twist-lock lids that handle honey and dressing
- 2.24″ opening makes filling and labeling fast
- At 0.4 kg for the set, it is far lighter to move than heavier bulk packs
- Dishwasher safe and reusable, with a clear body that shows off contents
What to know before you click
- Durability consensus is split — a small number report rim cracks under rough handling
- Lid tightness gets mixed notes compared to a two-piece band system
- Ship-boiling-water note: soak jars in warm water first before pouring boiling water in
Lock this in if: you make candles, jam, or honey gifts in volume and want a jar that already looks finished on the shelf.
Look past it if: you need a wide 100mm mouth for scooping, or you plan to pressure-can and want a band-and-disc setup.
2. Eathtek 12 oz Mason Jars 20 Pack, 360ml Mini Canning Jars with Regular Lids
The jam-maker’s box that turns a batch into a stack of labeled gifts
Where the Ritayedet pack gives you jars and stickers, this one hands you the whole gift table. You get 20 jars at 12 oz each, two different types of labels at 24 pieces apiece, 4 feet of twine, and both kinds of lids — 24 lids per jar style.
The taller, narrower shape — 2.6 inches across and 5.3 inches high — is what buyers keep calling out. It stores more easily in a crowded cabinet and the jars work for overnight oats, chia pudding, snacks, spices, and pills as readily as for jam. Thick, durable glass that survives boiling to sanitize, as owners mention, is the praise that shows up again and again: “Thick, durable glass; survived boiling to sanitize and dishwasher with no cracks.”
The trade-offs are honest and specific. The lid option situation is genuinely mixed — some owners find the stock lids fine, others note the jars do not tighten with their own Ball rings, which is a real compatibility issue if you plan to interchange lids. A couple of jars have arrived with shattered rims, though packaging is generally praised. And it is heavy: 4.56 kg for the full 20-pack, which is a two-hands job to carry.
Best if you gift: this is the only pick here that ships with labels in two sets, tags, twine, and two lid systems in the same box — everything for a jam-gifting afternoon is already inside.
Know before ordering: the standard-lid compatibility is not universal, so if you have a drawer of Ball rings you want to reuse, plan on the included lids instead.
Best for: home cooks who make jam, marmalade, or spiced honey to give away by the dozen.
Skip if: you need a wide mouth for thick fillings or you want a jar that is easy to carry — this case is not light.
3. Lyellfe 12 Pack Wide Mouth Mason Jars, 12 Oz Airtight Glass Canning Jars
For anyone who has ever fought a spatula into a narrow jar
If you have ever tried to stir overnight oats in a regular-mouth jar and given up, this is the pick for you. The wide opening lets a measuring spoon go in, lets a hand wash the inside, and lets oats and chia seeds actually get mixed rather than clumped at the bottom. The jars are described as 3 inches by 3 inches by 3 inches, which is a lighter, more compact profile than the taller 3-inch-by-3-inch-by-4.8-inch STARSIDE option further down.
The 12-count is the real draw here, and the reason is simple: 12 oz is genuinely hard to find. As buyers put it, “8 ounce was too small and 16 too big,” and that in-between size is the whole appeal. The jars are thick, the rings are generous, and the review pages include people vacuum-sealing coffee beans with a Foodsaver, storing fresh juice for days, and using them for frozen coffee punch at a shower.
Two things to know. The lids are metal and, like most metal canning lids, they will rust over time if you keep them wet — the reviews note owners switching to plastic replacement lids once that happens. And the jars are not stackable in a satisfying way, though multiple owners confirm they stack fine two-high on a fridge shelf. The source also notes the supplied lids are sometimes replaced with Ball or ForJars wide-mouth lids for sealing, which is worth knowing if you already own those.
The verdict: buy this one if your daily use is stirring, scooping, or eating straight from the jar, and you care more about the opening than the count.
The one limit: budget for replacement lids eventually, because bare metal rings do rust.
4. Jaisie.W 12 oz Mason Jars 20 Pack with Airtight Lids
The classical canning setup, sized for refrigerator pickles and jars of jalapenos
This is the jar for people who want the traditional two-piece lid, not a twist-lock or a screw-top. Each jar takes a metal band with a separate disc, and the silicone gasket inside the lid creates an airtight, leakproof seal that keeps pickles crunchy and sauces from leaking across the shelf. The 2.75-inch regular mouth gives you enough room to reach the bottom with a sponge — a detail worth knowing if you plan to rotate what you store in the same jars.
What people keep mentioning is the thickness of the glass compared to a well-known name brand, and the review pages say so directly. The pickup in the refrigerator is where these shine — one owner describes buying them specifically to make refrigerator pickle chunks and to store pickled jalapenos, red onions, and cucumbers, and another calls them the perfect jar for sous-vide yogurt (yogurt cooked slowly in a temperature-controlled water bath). Each of the 20 jars also arrives with kraft hang tags, a sponge brush, twine, and four sheets of small round rainbow stickers at 6 per sheet, so the gifts are already half made.
The realistic caveat is that the silver lids are not the strongest part of the kit. A handful of jars arrive with small dents in the lid that make closure take more effort, and the thin steel rings will rust if you leave them wet — the same as any standard canning ring. The glass itself is the standout, and the 12 fl oz volume is exactly what a single jar of pickles wants to be.
Why this is the canning-shape pick
- Two-piece metal lid with silicone gasket seals airtight and leakproof
- BPA-free and lead-free glass, dishwasher safe with lids hand-washed
- 2.75″ regular mouth reaches the bottom for thorough cleaning
- 20 jars plus rainbow stickers, kraft tags, twine, and a sponge brush
- Smooth interior resists lingering pickle odor, so you can switch to desserts
Where it stumbles
- A few lids can arrive with small dents that make them harder to close
- The thin steel rings rust if kept wet, like most standard canning bands
- Freezer use means filling only to 3/4 capacity to leave expansion room
Reach for this if: your kitchen runs on jarred pickles, sauces, and batch meal prep, and you want the honest band-and-disc lid.
Look elsewhere if: you want an embossed look on the shelf or a compact 4-pack for starter.
5. Mcupper 12oz Glass Mason Jars, Canning Jars 15 Pack with Airtight Lids
The in-between count for people who want jars, labels, and twine in one box
Fifteen jars is a useful number — enough for a serious canning afternoon, few enough to store without giving up a whole cabinet shelf. The silver split lids here use the classic band-plus-disc arrangement with a silicone gasket inside, which gives you the airtight seal and leakproof behavior you want for wet goods like apple butter. The jars measure 2.85 inches wide and 3.39 inches tall, and the diamond-texture glass provides a light grip pattern that makes a full jar less likely to slip.
What buyers praise most is the glass quality and how well these handle pressure canning and water bathing. They work for pressure canning and water bathing (two ways to heat-seal jars), all lids sealed, though one owner notes the lids take a couple of hours longer to seal than Ball lids — that is a real timing consideration if you are processing several batches in one day. The kit is generous: 15 round lid stickers, 15 oval body stickers, 15 colorful tags, 16 meters of natural twine, and a cleaning brush, so you can label and gift the whole batch without buying anything separately.
The honest note is that a small number of rings arrive rusty — usable, but not something you would hand to a neighbor as a tidy gift. Also, the freezer rule is stricter here than on most jars on this list: fill only up to 8 oz in a 12 oz jar to leave the liquid room it needs to expand. Respect that and it is a durable, BPA-free, lead-free jar that holds up.
Why it’s worth the cabinet space: the split-lid system gives you the classic seal plus a built-in labeling kit — 15 lid stickers, 15 body stickers, 15 tags, and 16 meters of twine.
Small catch to plan for: freeze only to 8 oz of the 12 oz capacity, and expect a few rings that may arrive with surface rust.
Choose this if: you batch-cook with a pressure canner and want the jars pre-labeled and gift-ready.
Wait if: you need 20 or more jars in one order or want embossed glass for display.
6. STARSIDE 12oz Glass Embossed Mason Jars 20-Pack
Glass with a textured pattern that makes a plain jar look expensive
Appearance is what this jar sells, and the count backs that up strongly — it is the only pick on the list whose best-loved feature is how it looks rather than what it holds. The jars are made of thick, food-grade, BPA-free glass (glass made without bisphenol A, a chemical some buyers avoid) with a textured embossed pattern that runs the outside, and the height at 4.8 inches gives them a bit more presence on the shelf than the 3-inch-tall Lyellfe jars above. The pattern is subtle enough that it does not block your view of what is inside — a detail picked up on in buyer feedback about decorative jars obscuring contents.
They are safe in the microwave with the lid off, dishwasher safe, and freezer safe — but with a headroom rule of filling only to 10 oz in a 12 oz jar to leave expansion room. That 10-oz freezer limit sits between the 8-oz rule for the Mcupper jars and the 3/4-capacity rule for the Jaisie.W jars on this list, so this pick gives you the most usable frozen volume of the three.
The seal is a classic two-piece metal lid, and it is airtight when tightened, though a handful of owners find the ring fits slightly off-center. That is the kind of thing you notice on the first jar and stop noticing on the third. The 20-pack ships with 24 rustic labels, gift tags, 3 decorative twines, and a sponge brush, and multiple owners describe the packaging as arriving without a single crack or chip. As customers note, the jars sealed almost immediately out of the canner: “Made grape jam; sealed almost immediately out of canner (pop).”
The right call if: you want your homemade jam, pickles, or bath salts to look like a small-batch product before the buyer opens the lid.
The trade-off: the ring fit is slightly variable, so test-tighten each lid before you gift a jar.
7. Freshmage Sourdough Starter Jars 12 oz 4 Pack with Glass & Plastic Lids
Four thick-walled jars built around a straight-sided scooping experience
The story is in the shape. These jars have straight vertical walls with no shoulder, which means a spatula slides down the side and comes back up clean — you actually get all of your starter out rather than leaving a ring of flour paste glued in the shoulder. They hold 12 fl oz each and come four to a pack, with two lids apiece: a glass lid with a rubber gasket and metal clamps for long-term sealing, and a plastic lid for daily use.
What buyers mention most in the reviews is the glass thickness — the same weight that makes a jar feel sturdy makes it honest on the counter. As buyers put it, you get a cheaper alternative to a pricier brand of this style, and owners use these for bouillon powder, mayo, and dressings as readily as sourdough. Each jar also includes four metal clamps — two for use and two spares — which is a detail that matters once you have learned that gaskets are the part that wears out on this style of jar.
Two honest limits. The gaskets can be removed and replaced, but the seal you get from the clamps alone is weaker than a two-piece screw lid — the reviews note the seal actually wants the clips to hold pressure. And this jar is not safe for the oven, microwave, or sudden temperature swings, so keep it to the dishwasher and the fridge. Just jars, four to a set, so it is the smallest count in this whole roundup.
Where these earn their place
- Straight-sided 350 ml jars with wide mouths, easy to scrape and clean
- Two lids per jar: a glass lid with gasket for sealing, plus a plastic lid for daily use
- Four metal clamps included per jar, two in use and two as spares
- Dishwasher safe for easy cleanup
- Stackable design saves counter and pantry room
Fair notes
- The gasket-based seal is weaker without the metal clamps in place
- Not suitable for oven or microwave, and sudden temperature changes can crack the glass
- Only four jars in the set, so this is not a canning-afternoon purchase
The pick for daily starter: exactly the four jars a person who bakes bread every week needs, and no more.
Not the one for you if: you want a screw-lid seal or a jar that can go in the microwave for reheating.
8. Flrolove Mason Jars 12 oz, Glass Canning Jars with Lids 24 Pack
The biggest count in this roundup, for people who need jar real estate
Twenty-four jars in one order is a genuinely different value proposition from the 12-pack and 4-pack options on this list. The jars are a wide mouth, 2.6-inch-diameter body that is the same width as the Eathtek jars above but shorter, at 5.2 inches high. Each one holds 12 fl oz. They ship in layered styrofoam and heavy cardboard, with a customer service line for the unlikely event that a jar shows up broken — a sign that breakage in transit is a real enough concern that this seller has put a process behind it.
The strong points are real: the glass quality is consistently praised, the 12 oz size suits small-batch sauces and gifting, and buyers use them for canning jam, small-batch pickles, chocolate syrup, and cowboy candy. The 12 oz middle size gets specific love for being bigger than a half-pint and smaller than a pint — the balance for a batch of cowboy candy that would otherwise be split awkwardly.
Here is the honest part you should not skip: the lids are the weak point. Multiple reviewers point out the screw lids failing to seal cleanly, and some lids and rings do not fit standard mason jars, making the whole set non-standard for interchangeability. With 4.4 stars across 900+ ratings, plenty of people are happy — but if lid security is your top priority, look at the Jaisie.W or Lyellfe picks first. Buy this one for the count, the price-per-jar, and the labeling extras, not for a perfect seal.
Buy for the bulk: 24 wide-mouth 12 oz jars is the largest count here, and the labeling extras and foam packaging round out the package.
Buy it elsewhere if: you plan to pressure-can, because the screw lid is the part of this set the reviews are least happy with.
9. Le Parfait Familia Wiss 12oz (350ml) Wide Mouth Glass Canning Jars – 4PK
The French jar with a lid system built around an actual vacuum
This is the pick for the person who wants the jar they will still own in a decade, and the short count is the price of that. Four jars, 350 ml each, made in France from thick glass with zero plastic components and a USDA-recommended two-piece lid system. The 100 mm opening is wider than a wide-mouth mason jar, so filling and emptying is genuinely easy, and the straight-sided body with no shoulder makes it bakeable and easy to work with.
The lid engineering is the reason to buy here. You get a sealing cap plus a screw full lid, and the two work together: the screw lid has a concave curve in the middle while the sealing cap has the inverse, so pressure squeezes uniformly around the rim and pulls a vacuum during canning. That is what keeps food secure long-term. Owners use these for fermenting, storage, canning, refrigerator pickles, and individual soups or salads, and describe the result as a lead-free glass alternative to plastic.
The catch is the price and the lid replacement cost. A buyer notes the lids are 110 mm, which will be expensive to replace when they eventually wear out. That is a genuine long-term cost to weigh against the decades of reuse. If you want a wide-mouth jar for canning and do not want to maintain glass lids and gaskets, the Lyellfe or the Jaisie.W pack gives you more jars to work with. If you want the best-built jar on this list and only need four, buy this one.
Why it’s worth the premium: the USDA-recommended two-piece lid pulls a true vacuum, the 100 mm mouth is wider than a wide-mouth mason, and the glass has no plastic to degrade over years of use.
The fine print: four jars per set and lids at 110 mm means replacements are not cheap, so this is a considered purchase, not a bulk buy.
The jar for the long haul: pick this if you want four premium wide-mouth jars that will outlast the plastic in your kitchen.
The jar to pass on: skip it if you need 20 jars for a canning day or want a lid you can swap with standard mason rings.
Understanding the Specs
Mouth size and what it changes
A regular mouth opening runs about 2.59 to 2.75 inches across, and a wide mouth with a 100 mm opening is wider than that. The wider the opening, the easier it is to get a measuring spoon in, scoop sticky starter out, or fit whole green beans without cutting them down. The narrower the opening, the cleaner the rim stays when you ladle in hot jam. Pick the mouth based on what you do daily, not on what sounds better.
Lid systems and what they are for
A two-piece metal lid uses a flat disc and a separate band; the disc is what seals, and the band holds it. A twist-lock or screw lid is one piece and is easy for daily use but is not built for a water-bath vacuum. A glass lid held by metal clamps and a rubber gasket is the European method — excellent for fermenting and sourdough, but the gasket is the part that wears out, so check replacement availability before you commit.
Freezer headroom in a 12 oz jar
Liquid expands as it freezes, so a full 12 oz jar of sauce will crack the glass. Different makers give different guidance: stop at 8 oz in a 12 oz jar for one, 10 oz for another, and 3/4 capacity for a third. Whichever jar you buy, never fill above 3/4 with something you plan to freeze, and never move it from the freezer to hot water.
Glass thickness and heat
Thicker walls handle boiling water, dishwasher cycles, and pressure canning better than thin glass, and they are less likely to crack when they cool. Even thick glass dislikes sudden temperature change, so warm the jar before pouring in boiling liquid, and let it cool before moving to a cold surface. BPA-free and lead-free labels tell you what is not in the glass, which matters if you are storing acidic foods like tomato or citrus.
FAQ
Will standard mason jar lids and rings fit 12 oz jars from these brands?
Can I use a 12 oz jar for pressure canning?
How much can I fill a 12 oz jar before freezing it?
Do 12 oz canning jars fit in a standard canner rack?
Will the metal lids rust and how long do they last?
Are these jars safe for hot liquids straight from the pot?
Are 12 oz jars dishwasher safe including the lids?
Is 12 oz better than 8 oz or 16 oz for home canning?
Do I need replacement lids and where do I get them?
Is the glass in these jars lead-free and BPA-free?
Final Thoughts: The Verdict
For most buyers, the 12 oz canning jars winner is the Ritayedet 20-pack because it pairs a leak-proof twist-lock lid, a 12 oz capacity, and a finished look that homemade goods sell themselves with. If you want the wide-mouth opening for stirring and scooping, grab the Lyellfe 12-pack. And for long-term canning with a real vacuum seal and no plastic, the Le Parfait Familia Wiss is the one to reach for. Whichever you pick, buy the jar whose lid type matches what you actually do — that is the one decision that determines whether you reorder in a year. The Ritayedet pack holds the top spot with 4.7 stars across 900+ ratings, and its candle and jam reviews suggest it will hold up in your kitchen the same way it has in theirs.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of September 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
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