Last week, a customer brought me a pair of earrings I'd made her three years ago. The glass beads were cloudy, one had a hairline crack, and the silver had turned completely black. "I store them in my bathroom drawer," she said. "Is that bad?"
Yes. Very bad.
Lampwork jewelry isn't like your grandmother's gold chain or that stainless steel watch you wear swimming. These are glass beads made one at a time in a 2100°F flame, annealed slowly in a kiln to relieve stress, and assembled with materials chosen specifically to work with glass. They need different care.
After fifteen years at the torch and hundreds of conversations with customers, I've seen the same mistakes kill beautiful pieces over and over. Here's what not to do if you want your lampwork jewelry to stay gorgeous.
Never Store Lampwork Jewelry in Humid Places
Your bathroom drawer is a death trap for glass beads. So is that jewelry box on your vanity where you do your hair with steam from the shower. Humidity doesn't just make metal tarnish faster—it can actually damage certain glass formulations.
I learned this the hard way when I first started making beads with silver-rich glass like Effetre's Intense Black. These colors are gorgeous but hygroscopic, meaning they literally pull moisture from the air. Over time, that moisture creates tiny surface fractures that cloud the glass.
Store your lampwork pieces in a dry place. I tell customers to use a jewelry box in their bedroom closet or a drawer away from any water source. If you live somewhere really humid (I'm looking at you, Florida), throw a small silica gel packet in with your jewelry. The kind that comes in vitamin bottles works fine.
Don't Clean Glass Beads with Jewelry Cleaners
Most commercial jewelry cleaners are formulated for precious metals and gemstones. They contain ammonia or other alkaline chemicals that can etch glass surfaces and strip away the fire polish that gives lampwork beads their smooth, glossy finish.
I once had a customer use one of those ultrasonic cleaners on a bracelet with my signature dot beads. The cleaner removed the fine silver foil details completely and left the surface looking dull and scratched. There's no fixing that.
Stick to warm water and a tiny drop of dish soap. Use a soft cloth or your fingers to gently clean around the bead holes where skin oils accumulate. Rinse thoroughly and dry immediately with a soft towel. That's it.
Avoid Sudden Temperature Changes
Glass has something called a coefficient of expansion (COE). All my beads are made with COE 104 glass, which expands and contracts at a predictable rate as temperature changes. But sudden temperature shifts can still crack even properly annealed beads.
Don't wear your lampwork jewelry in hot tubs, then immediately jump into a cold pool. Don't leave pieces in a hot car and then bring them into air conditioning. Don't rinse hot beads with cold water.
I know this seems obvious, but I've seen thermal shock cracks more times than I can count. The crack usually starts as a tiny line near a bead hole—the stress point—and spreads from there.
Never Use Abrasive Materials on Glass
This includes jewelry polishing cloths treated with rouge or other polishing compounds. Those cloths are great for silver and gold, but they'll scratch glass surfaces. Even some microfiber cloths can be too rough if they've picked up particles from cleaning other things.
I provide a small piece of untreated cotton flannel with every jewelry purchase specifically for cleaning the glass beads. Cotton is softer than glass on the Mohs scale, so it won't scratch. If you lose the cloth, any clean, soft cotton fabric works—old t-shirts, cotton flannel, or eyeglass cleaning cloths.
Don't Ignore Wire and Findings Issues
The wire and findings in lampwork jewelry aren't just decorative—they're engineered to work with glass. I use either fine silver or sterling silver wire because silver has a COE closer to glass than other metals. Cheaper jewelry might use silver-plated copper or brass, which expands differently and can crack beads over time.
Never try to "fix" bent ear wires or stretched bracelet wire yourself unless you understand metal working. I've seen customers accidentally snap beads trying to reshape hardened sterling silver wire. If something needs adjustment, take it back to the maker or find a jeweler who works with lampwork regularly.
Also, don't ignore tarnish on silver findings. Tarnish isn't just ugly—it's actually silver sulfide, which can transfer to glass surfaces and create permanent dark spots. Polish silver findings gently with an appropriate silver cloth, being careful not to touch the glass.
The Chemistry Behind the Care
Here's where I get a little nerdy, but understanding why these rules matter helps you remember them. Glass is essentially a supercooled liquid—it never fully crystallizes like metals do. That means it's always slightly in flux at the molecular level.
When I make beads, the annealing process controls this flux by slowly cooling the glass through its stress-relief point (around 915°F for COE 104). This locks in a stable molecular structure. But extreme conditions—chemical attacks from harsh cleaners, thermal shock, or mechanical stress—can disrupt that stability.
The surface finish on my beads comes from flame polishing, where the outer layer of glass becomes perfectly smooth in the torch flame. This creates both the optical clarity and the tactile smoothness you feel. Anything that damages this surface layer—scratches, etching, or chips—affects how light passes through the bead and changes how it looks.
What About Everyday Wear?
Some customers worry that glass jewelry is too fragile for regular wear. That's not true if you understand its limits. I wear my own pieces daily—lampwork beads are tougher than you think when they're properly made and cared for.
Do take off glass jewelry before heavy exercise, gardening, or cleaning. The salt in sweat won't hurt glass, but the physical activity might bang beads against hard surfaces. Do remove pieces before applying lotion or perfume—not because they'll damage the glass, but because oils can make beads slippery and harder to clean.
Don't baby your lampwork jewelry, but do respect what it is: handmade glass art that happens to be wearable.
When Things Go Wrong
Even with good care, accidents happen. I've had customers email me photos of cracked beads, asking if they can be repaired. Unfortunately, damaged lampwork beads usually can't be fixed—the stress patterns in annealed glass mean any crack will eventually spread.
What I can often do is remake a damaged bead to match the original, especially if it's one of my standard designs. I keep detailed notes and photos of custom color combinations specifically for this reason. Don't throw away broken pieces—sometimes I can use them as color references.
The Bottom Line
Caring for lampwork jewelry isn't complicated, but it is different. Treat your pieces like the small glass sculptures they are, not like mass-produced metal jewelry. Store them dry, clean them gently, protect them from temperature shock and physical damage, and they'll stay beautiful for decades.
I still have some of my first experimental beads from 2009, and they look exactly like they did when I pulled them from the annealing kiln. Good glass, properly cared for, doesn't age.
Your lampwork jewelry represents hours of work at a 2100°F torch, careful color planning, and precise temperature control through the annealing process. A little thoughtful care keeps all that craftsmanship intact.
See the latest beads on the torch at msmussyjewels.com