Is a Weck jar sale actually worth jumping on?
Worth it, for the right kitchen habit
around $20price at time of review — check Amazon for current
- Worth it ifYou keep a sourdough starter or ferment vegetables regularly
- Skip it ifYou only need cheap jars for dry pantry storage
Amazon shoppers rate it 4.7 out of 5 across 3,028 ratings. That is their number, not ours.
By Maya Bennett, kitchen & home · updated 2026-07-30
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Picture the lid of a jar you've been feeding a sourdough starter in for a week: the metal ring gummed with dried flour, a faint rust line creeping in under the rubber seal. You scrub at it and it's still there. That's usually the moment someone starts checking every weck jar sale they can find, wondering if a jar with no threads is actually different or just prettier.
Here's the bit that actually matters: a Weck jar has no metal ring at all. The glass lid sits flat on the rim, a rubber gasket sits between lid and glass, and a small stainless clamp clip presses down to hold the seal, rather than screwing into it. Because the lid, gasket and clip are three separate pieces instead of one welded unit, there's nothing for flour or brine to hide in, and nothing to rust. You wash three simple shapes instead of prying grime out of a threaded lip. That same wide, straight-sided mouth is why bakers reach for the 743 specifically: no shoulder means a starter climbs the glass evenly, so you can watch the rise and scrape the sides clean in one pass instead of chasing residue around a curve. The thick glass takes a microwave reheat or a dishwasher cycle without complaint, and since it's freezer safe too, the same jar moves from ferment to fridge to freezer without a decant. It does a lot of jobs by removing parts, not adding them.
So you're not really buying a fancier mason jar, you're buying a shape built with nothing in it that can fail on its own: no ring to rust, no shoulder to trap residue. The seal is only as airtight as the gasket sitting flush, which is on you to check each time, not something the jar guarantees for you.
Worth it if
- You keep a sourdough starter or ferment vegetables regularly
- You want to inspect contents without unscrewing a metal lid
- You're fine hand-checking a gasket seal rather than trusting a screw-top
Skip it if
- You only need cheap jars for dry pantry storage
- You want stackable jars with threaded lids for easy transport
- You'd rather not think about seal placement each time you close it
Not for anyone who just wants the cheapest jar for basic dry storage.
If you keep a starter alive, ferment vegetables, or just like being able to see what's inside without unscrewing a metal band, this is a quiet yes. If you want the cheapest possible jar for dry pantry storage, a plain mason jar does that job for less, and you won't be paying for a shape you don't need.
Check price on Amazon · around $20 or Add it to your Amazon cart to sit on it
Before you go
What is so special about WECK Jars?
The glass lid, rubber gasket and clamp clip are separate pieces instead of a threaded metal lid, so there's nothing to rust and nothing for residue to hide in.
Are Weck jars better than Mason jars?
For fermenting or feeding a starter, yes, the wide straight mouth and removable seal are easier to clean and inspect; for plain storage, a mason jar does the same job for less.
Why are WECK Jars so expensive?
You're paying for thicker glass and a three-part seal system instead of a stamped metal lid, both of which hold up longer and don't rust.
Full spec sheet
| Material Type | Weck 743 |
|---|---|
| Material Features | Dishwasher Safe, Microwave Safe, Freezer Safe |
| Product Care Instructions | Dishwasher Safe |
| Brand Name | WECK |
| Recommended Uses For Product | Yogurt,Juices, Pickled Vegetables,Fruits,Jams,Jellies,Pulses,Spices |
| Item Form | Round |
| Included Components | Clips, Glass Lid, Rubber |
| Item Type Name | Canning Jar |
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