Part of our series on canning jars in bulk — read the overview first if the format is new to you.
Most custom mason jar projects leave the glass alone and brand a stock jar with fired screen printing or frosting plus a lid in a chosen colour. Because the mason format is standardised, a private mould is rarely needed. Minimums, cost and timing are quoted per project and depend on the decoration method, the number of print colours, the lid and the quantity.
The four levels of customisation
Know which level you are buying before you ask for a quote, since each adds a different kind of cost.
- Decoration on a stock jar. Printing or etching applied to a catalogue shape.
- Colour and finish. Sprayed colour, frosting or electroplated effects over a stock shape.
- Closures. Lids in a proprietary colour, printed lid tops or embossed lid structures.
- A custom mould. Uncommon for mason-style jars, but used by brands that want their own shoulder profile or an embossed base.
The combination that works most often is the first level with the third. The glass stays a catalogue item, the print carries the brand, and one lid colour ties the range together.
Screen printing, etching or labels
Direct screen printing is the standard method. Ceramic inks go onto the glass and are fired in a lehr, the annealing oven, at 560 to 620 degrees Celsius, which fuses the design permanently. It has limits: artwork must be built from spot colours, registration on a round jar restricts fine detail, and every colour needs its own screen and pass. One or two colours is the sensible range. Four-colour process work on round glass can be done but seldom makes sense on smaller runs.
Acid etching and sandblast frosting give the frosted surface seen on spa candles and wedding favours. For candle jars, screen printing is the cheaper route and suits bold logos, and many candle brands pair a frosted body with a one-colour print.
On short runs, pressure-sensitive labels and shrink sleeves usually cost less than any fired method. Our decoration services page compares fired decoration with label options and shows sample photos. Jars with flat faces make printing easier.
Custom lids
The lid is the first part of the pack a consumer handles, and it is often overlooked. Stock mason closures come in gold, silver, black and white. Beyond those, a programme can add a custom colour, a printed lid top or an embossed lid structure. Most of this work is aimed at the two-piece disc-and-band system described on our mason jars page.
Two functional rules apply before appearance:
- Nothing may be coated or printed on the sealing side of the lid. The plastisol or sealing compound has to sit on bare food-safe metal.
- The colour must survive your process. Hot-fill at 180 to 200 degrees Fahrenheit discolours some powder coatings, so ask for process-matched samples and put them through your own fill line before you commit.
Artwork, sampling and the line trial
Three mistakes account for most wasted money: more print colours than the volume justifies, decoration specified before the jar's label panel geometry is confirmed, and artwork in the wrong format. Plants need vector files such as AI or EPS with Pantone callouts, sized to the wrap dimensions of the jar. A JPEG taken from a website has to be redrawn. Ask for a template drawing of the exact jar before finalising the art; we request it from the plant as part of the brief.
Do not skip the trial on your packing line. That is where a matte ink that looked fine on the sample turns out to scuff in the case packer.
If mason jars are one option among several, the wider shape range is on our custom glass jars page, and structural embossing for brands ready for mould-level work is covered under embossed glass jars.
FAQs about custom mason jars
What is the minimum order for printed mason jars?
It is quoted per project. A programme that combines printed jars with custom lids has to suit the scheduling of both components.
How much does screen printing add per jar?
That depends on the number of colours, the quantity and the jar, so it is priced per project.
Can mason jar lids be made in a custom colour?
Yes. Printed tops and embossed lid structures are possible too, with some tooling involved.
How long does a custom order take?
Timing is confirmed per project once the decoration, lids and line schedule are settled.