Square Glass Jam Jar
50 ml / 1.7 US fl oz — 730 ml / 24.7 US fl oz
Tinplate
Choose size & fittingMAIDAO GLASS · MANUFACTURER IN CHINA
Glass jam jars for your next preserve range.
A tasting size, a square jar or a familiar round profile: start with the pack your customers will hold. Compare our existing glass jam jars by capacity and shape, then bring the jar and lid into one purchasing brief.
- Catalogue designs
- 21 references
- Listed capacities
- 50–770 ml
- Starting point
- Existing moulds
CHOOSE AN EXISTING DESIGN
Find the size and shape your range needs.
Your shortlist starts with a capacity and shape. The lid reference stays with your enquiry; its material name supplies no neck standard or stock confirmation.
21 designs match your selection
100 ml 58series Round Glass Jar
100 ml / 3.4 US fl oz
Tinplate
Choose size & fitting
150 ml 58series Round Glass Jar
150 ml / 5.1 US fl oz
Tinplate
Choose size & fitting
180 ml Round Glass Jar
180 ml / 6.1 US fl oz
Tinplate
Choose size & fitting
200 ml 58series Round Glass Jar
200 ml / 6.8 US fl oz
Tinplate
Choose size & fitting
250 ml 58series Round Glass Jar
250 ml / 8.5 US fl oz
Tinplate
Choose size & fitting
280 ml Round Glass Jar
280 ml / 9.5 US fl oz
Tinplate
Choose size & fitting
300 ml 58series Round Glass Jar
300 ml / 10.1 US fl oz
Tinplate
Choose size & fitting
380 ml 58series Round Glass Jar
380 ml / 12.8 US fl oz
Tinplate
Choose size & fitting
380 ml Round Glass Jar
380 ml / 12.8 US fl oz
Tinplate
Choose size & fitting
500 ml Round Glass Jar
500 ml / 16.9 US fl oz
Tinplate
Choose size & fitting
73 Series Straight Glass Jam Jar
100 ml / 3.4 US fl oz · 200 ml / 6.8 US fl oz · 280 ml / 9.5 US fl oz · 380 ml / 12.8 US fl oz
Tinplate
Choose size & fittingEXISTING GLASS JAM JARS · MOQ, SAMPLES & DELIVERY
Glass jam jars in bulk: quantities, samples and delivery.
An existing design gives your project a starting point without commissioning a new body shape. Your order still needs a defined lid, finish and packing basis.
Glass, lids and decoration
Your quotation separates the selected glass, lids, lid printing and decoration, with quantities for each size. A jar-only offer and an assembled pack have different scopes.
Your existing-design MOQ depends on the chosen bottle or jar, quantity per size and decoration. Mixed designs can share a container; each design retains its own quoted minimum.
Samples before the order
Your sample brief keeps the chosen capacity and lid reference together with the filling conditions you want to evaluate.
Your available plain stock-glass samples are free; you cover the courier. Decoration, fittings and custom tooling are confirmed separately.
For your planning, existing-design orders use a 15–20 day reference after confirmation and sample approval. Your quotation confirms availability, decoration and the dispatch date.
Your quote can use EXW or FOB with a named location. The selected glass, fittings, packing and destination determine your landed-cost comparison.
Choose the square-jar sample →YOUR JAR AND LID
Match your jam jar with its lid and liner.
Your metal lid needs the jar’s neck geometry and liner specification to establish a match. A capacity or material name cannot identify that complete assembly.
| Decision | Known from the catalogue | Needed for your chosen pack |
|---|---|---|
| Jar capacity | Listed capacity options, including 280 ml / 9.5 US fl oz in the square range. | Working fill, headspace and filled-product presentation. |
| Lid and neck | Material or fitting references, such as Tinplate. | Matching neck drawing, closure geometry and liner. Tinplate alone is not a finish standard. |
| Filling process | Product appearance and stated glass material. | Your fill and cooling conditions, package trials and applicable documents. |
| Brand finish | Clear round and square catalogue designs. | Label / printing area, lid artwork and a sample for approval. |
MANUFACTURING & INSPECTION
Glass jam jar inspection and your filled-pack approval.
Mouth and sealing surfaces receive 100% checks in both production areas. We check capacity routinely; you can request a residual-stress report for the order.
For your preserves, glass inspection and filled-pack evaluation serve different purposes. Product reports apply to their stated samples and tests; our ISO 9001 certificate covers glass products sales.
Review inspection scope & documents →YOUR BRAND ON AN EXISTING JAR
Label and decorate your existing glass jam jar.
Clear glass leaves room for the colour of your preserves. A label, printed lid or selected glass decoration can carry the brand; the artwork area and lid specification belong in the same brief.
Explore decoration →WHEN THE SHAPE NEEDS TO CHANGE
Custom jam jar moulds for a different body shape.
If the existing shapes do not meet your size, shoulder or embossing requirements, custom development adds drawing, tooling and glass-sample approval. Keep that route separate from pricing an existing jar.
Compare custom development →BEFORE YOU ORDER
Questions about buying glass jam jars.
Do you manufacture glass jam jars in China?
Yes. Your supplier is MAIDAO GLASS, the glass-packaging brand of MAIDAO INDUSTRY CO., LTD, established in 2005. Production relationships and inspection records are available in the quality overview.
Can I use my current lid?
Your lid drawing or finish reference is the starting point for matching the jar neck, closure geometry and liner. Capacity and lid material alone do not identify that assembly.
Are the listed jars approved for hot filling?
Your selected glass, lid and actual filling / cooling conditions need a defined evaluation. The jar shape and general inspection record do not establish hot-fill approval.
YOU HAVE A SIZE IN MIND
Start with the square-jar range.
Your square-jar enquiry keeps the selected capacity and lid reference with your order quantity and destination.
Choose capacity & lid →YOU ARE STILL COMPARING
Tell us about the pack you need.
Your intended contents, target size and current lid reference can start the enquiry while you compare designs.
Help me choose a jam jar →