Glass Jar Crafts: How to Clean, Prep and Decorate Jars
The groundwork for any jar project: which food jars to keep, how to wash them and freshen the lids, a brief look at label removal, and four decorating methods compared by look and durability.
Glass jar crafts begin long before the paint comes out. A jar that is properly chosen, washed and stripped of its label takes decoration well; one that still carries glue residue or a film of grease will shed paint and paper within days.
This guide covers the groundwork for every jar project: which jars to keep, how to clean them and their lids, and the four main ways to decorate them, with a comparison to help you choose.
Which jars to keep
Food jars are the ones to save: jam, sauce, pickle, salsa and baby-food jars, along with canning-style mason jars. Look for three things.
- An intact rim. Run a cloth around the top edge. It should feel smooth all the way round.
- Sound glass. Hold the jar up to the light and turn it slowly. Recycle any jar with a chip, a crack or a deep scratch.
- A lid that fits. A lid without dents or rust closes properly and can be painted to match.
Shape matters too. Straight sides are the easiest to wrap and cover. Jars with shoulders, ridges or embossed patterns look good painted but resist paper and twine.
Watch out
Use only jars that held food or drinks. Never keep a jar that held cleaning products, paint, solvents, garden chemicals, medication or anything you cannot identify, and handle chipped glass with a cloth on its way to the recycling bin.
Wash the jars and freshen the lids
Wash each jar inside and out in warm soapy water with a dish brush, paying attention to the threads at the neck. Rinse well and let the jar dry completely, upside down at first and then upright.
Lids need more attention, because the lining holds on to smells from pickles, garlic and sauces. Try these steps in order:
- Wash the lid in warm soapy water and scrub the inner rim.
- Rub the inside with a paste of baking soda and water, leave it for about an hour, then rinse.
- If a smell remains, soak the lid in white vinegar and water for roughly 30 minutes and rinse again.
- Dry it thoroughly and leave it off the jar, in fresh air, for a day or two.
Dry metal lids right away so they do not rust. A lid that still smells after all of this is best used on a display jar that stays closed, or replaced with a fabric or paper cover.
Remove the label
Decoration only sticks to bare, clean glass, so the label and its glue both have to go.
The short version: soak the jar in warm soapy water for 20 to 30 minutes, peel the softened paper away and rub off whatever adhesive is left. Do not scrape the glass with a blade.
Some labels leave a stubborn sticky patch. The full method, including an oil and baking soda paste for residue, is in the step-by-step guide on how to remove labels from jars.
Just before decorating, wipe the outside with a little dish soap on a damp cloth, rinse and dry. From then on, hold the jar by the rim or from inside so fingerprints do not get under the paint.
The four main decorating methods
Acrylic paint
Acrylic craft paint gives a solid, opaque color. Brush it on the outside in two or three thin coats, letting each dry for about 30 minutes, and work in a room with a window open. Thin coats level out; thick ones drip and peel. The complete process for painted jar vases covers brush marks, drying and optional sealing.
Twine or fabric wraps
Wrapping needs no drying time between steps. Put a line of tacky glue around the jar, press the end of the twine into it and wind upward, adding glue every few turns. Wrap the whole jar or only the neck. A fabric remnant works the same way: cut a band, glue it around the middle and turn the raw edges under.
Tissue paper and glue
Torn or cut tissue paper, brushed on with thinned white glue, gives a soft, translucent finish. This is a simple form of decoupage. Brush glue on the glass, lay a piece of tissue over it and brush more glue on top, overlapping pieces as you go. Because light passes through, the method suits jar lanterns lit with battery LED lights.
Lid painting
Sometimes the lid is all you need to change. Sand the top lightly so paint can grip, wipe away the dust and apply two thin coats of acrylic paint to the outside only. Painted lids in different colors are also a quick way to tell jars apart when you use them for craft and desk storage.
Method, look and durability compared
| Method | Look | Durability |
|---|---|---|
| Acrylic paint | Solid, opaque color | Fair; can scratch or chip, better with a water-based sealer |
| Twine or fabric wrap | Textured and rustic | Good when kept dry; hard to clean once dusty |
| Tissue paper and glue | Soft and translucent | Fair; holds up to dusting, not to water |
| Painted lid | Small accent of color | Good; chips mainly at the edge from opening |
None of these finishes is permanent in the way a factory coating is. Treat a decorated jar as a handmade object and it will last well.
What decorated jars are for
Keep decorated jars to three jobs: display, vases and dry non-food storage. A jar painted on the outside only can still hold water for flowers. Wrapped and papered jars suit dried stems, pencils, brushes, buttons and similar supplies.
Do not use painted or glued jars for food or drinks. Craft paints and glues are not made for contact with anything you eat, and a decorated lid is no longer a reliable seal.
Care and cleaning
Decorated jars are hand-wash only, and gently at that. Keep them out of the dishwasher and do not leave them to soak.
- Wipe painted jars with a soft, slightly damp cloth.
- Rinse the inside of a vase without flooding the outside, then dry it straight away.
- Dust twine and fabric wraps with a dry brush.
- Touch up chips with the same paint; keep a note of the color you used.
Tip
Decorate jars in groups of three in different heights, using one method and two or three related colors. A small matched group looks more deliberate than a single jar.
Frequently asked questions
Does acrylic paint stay on glass jars?
It holds reasonably well on clean, grease-free glass when brushed on in two or three thin coats, but it can still scratch or chip with rough handling. A coat of water-based sealer adds some protection. Wipe painted jars with a damp cloth and avoid soaking them.
Can I store food in a jar I have painted or decorated?
It is best not to. Craft paints, glues and sealers are not made for contact with food or drinks, and a painted lid may no longer close tightly. Keep decorated jars for display, flowers and dry non-food items such as buttons, pencils and brushes.
How do I get a pickle or garlic smell out of a jar lid?
Wash the lid, then rub the inside with a baking soda and water paste and leave it for about an hour before rinsing. A soak in diluted white vinegar is the next step if the smell lingers. Dry the lid fully and air it for a day or two off the jar.
