
A candle order can pass every photo check and still arrive unsellable. The wax looks fine on a screen. The jars look fine. Then the carton opens in your warehouse and the surface is frosted white, the scent is faint, or three jars in every box are cracked at the rim. Buyers who import candles from China hit the same short list of problems again and again, and nearly all of them can be stopped before the goods leave Guangzhou. So let’s walk the list, one failure at a time, with the fix for each.
Fragrance that fades before the stock sells
The most common complaint isn’t a defect you can photograph: the candle just doesn’t smell strong enough. That’s usually fragrance load and oil quality. Scented container candles commonly carry somewhere between six and ten percent fragrance oil, but a quote that undercuts everyone else often gets there by dropping the load or swapping in a cheaper oil that fades within weeks. Cheap oil is where I’d look first.
The fix isn’t complicated. Put the fragrance load in writing, name the oil supplier where you can, and keep a signed retained sample from the approved batch. At inspection, a cold throw comparison against that sample takes seconds. For repeat orders, ask the factory to hold oil from the same lot where the volume makes that practical.
Frosting, sink holes and the wick that tunnels
Soy and soy blend waxes frost. That white crystalline bloom on the surface or the jar wall is natural behaviour for vegetable wax, and factories manage it with pouring temperature, cooling control and blend choice. Walk into a pouring hall in January and you’ll know within a minute how seriously they take it. In a good one the air is kept warm and smells of whatever fragrance ran that morning; in a cheap one you keep your coat on, and the wax tells on it weeks later. Ask how the pouring room is temperature controlled, and go look at it if you visit.
Sink holes around the wick come from single fast pours. Better lines do a second top-up pour or level the surface with heat guns. Tunnelling is different. It shows up at the customer’s home weeks after delivery, when an undersized wick burns a hole down the centre and leaves a wall of wax standing. The only real protection is a proper test burn on your exact jar, wax and fragrance combination, documented with photos of the full melt pool. Insist on seeing those burn records before you approve production, then repeat a spot burn during inspection.
Glass, lids and the journey to port
Candle jars usually come from dedicated glass factories, often outside the city in places like Qingyuan, and get filled and decorated at workshops in and around Guangzhou, with Baiyun district holding a good share of the filling and packing capacity. That split supply chain means the jar spec deserves its own attention. Thin walled or poorly annealed glass cracks at the rim under a tight lid or a hot burn. Ask for the jar weight in grams on the spec sheet, and try lids on a random sample. A lid that needs force to close will crack rims in transit.
Packing is the other half. You want divided inserts, not jars wrapped and stacked loose, plus a carton drop test on the finished export pack. Sea freight adds one more risk that surprises first time buyers: heat. A container crossing the tropics in July can soften low melt point wax enough to deform surfaces and loosen labels. Our work as a shipping agent in Guangzhou often comes down to exactly this judgement, choosing sailing dates, stowage requests and sometimes wax specifications with summer transit in mind.
The paperwork side nobody warns you about
Candles sit closer to regulated goods than most home decor. Fragrance oils are chemicals, and many markets expect safety labelling on the jar or base, warning pictograms where they apply, and safety data sheets for the fragrance components. None of it is hard. It just has to be planned before the labels print, not discovered at the destination port. Get the fragrance safety documentation from your factory early, have your own compliance advisor or customs broker confirm what your market requires, and build the wording into the artwork from the first draft.
Burn safety instructions matter commercially too. A small base label with trimming and burn time guidance costs almost nothing at print stage, and it tells retail buyers they’re looking at a professional product.
A prevention checklist that actually gets used
Long checklists die in a drawer. This one fits on a single page of a purchase order and covers most of the failures above:
- Fragrance load and oil name stated in writing, retained sample signed by both sides.
- Documented test burn on the final jar, wax and wick combination before bulk pouring.
- Jar weight, glass type and lid fit on the spec sheet, checked on random pieces.
- Divided carton inserts, sealed and drop tested export packing, silica gel in humid months.
- Safety labels and fragrance documentation confirmed for your market before artwork approval.
- Final random inspection with cold throw comparison, surface check and packing check.
Every line is there because some buyer somewhere skipped it once. If you import candles from China on a repeat schedule, staple this list to every purchase order. The good news is that candle factories in this region are used to demanding export customers, and the better ones read a clear spec as a sign of a serious order, not an inconvenience.
Quick answers on candle orders
What fragrance load should I specify for a strong scent throw?
There’s no single number, because throw depends on the wax, the oil and the room, but scented container candles commonly sit between six and ten percent. Agree a figure with your factory, then judge the result on a burning sample in a normal sized room. Sniffing the cold jar in a warehouse tells you very little.
Can one factory supply the jar, the wax and the packaging together?
Usually the filling factory buys jars from glass suppliers and boxes from printers, then assembles the lot. That’s normal and it works well, but it means lead times stack: the glass and the printed boxes must arrive before pouring finishes. Build in a week or two of buffer, and more before major holidays.
How do I stop candles arriving melted in summer?
Ask for the wax melt point in the spec, avoid the lowest melt blends for July and August sailings, request stowage away from direct deck heat where your forwarder can influence it, and consider moving very heat sensitive lines to cooler season shipments. Insulated liners exist, but they add cost, so most buyers solve this with timing and wax choice.
We’re a sourcing team on the ground in Guangzhou, and candle and home fragrance orders cross our desks all year. You can read who we are on the site, and if you’re planning a candle line, message us through the contact form or WhatsApp. Come to China and we’ll meet you at the airport and take you to the pouring rooms and the glass suppliers in person.



