The most common complaint we get is not about quality; it is about breakage in transit. A customer opens a carton and finds 15 cracked mugs, and the first instinct is to blame the factory. The reality is more complicated: breakage rates are mostly decided by packing density and carton weight, not by the mug itself. Here is how breakage actually happens and what you can do about it.<\/p>\n\n
With correct packing, expect 0.5-2% breakage on a sea freight shipment, which means 5-20 mugs per 1,000. Below 0.5% is excellent, and anything above 3% means either the packing is wrong or the cartons are being handled badly at a specific port. Most buyers never see these numbers because suppliers replace broken pieces without telling them. Ask for the actual breakage figure; a supplier who tracks it is a supplier who packs properly.<\/p>\n\n\n
We test every packing configuration with a 1-meter drop onto concrete on the corner and the edge, per ISTA 1A-style standards. A mug packed in a snug EPS sleeve inside a corrugated carton survives; the same mug wrapped in two sheets of bubble wrap in a loose box often does not. The test costs nothing and catches 90% of packing problems. If your supplier cannot show you a drop test video of your exact packing, ask for one before production.<\/p>\n\n\n
Freight is charged by volume or weight, whichever is higher, and ceramic mugs are heavy: a standard 11oz mug with packing weighs 350-450g. To cut freight cost, suppliers pack more mugs per carton, which raises breakage risk. A 20kg carton of tightly packed mugs can crack under its own weight when stacked six pallets high in a container. Our maximum is 24 mugs per carton with EPS dividers, and we put the 18-24 kg\/m\u00b3 EPS density spec in the packing list. Cheaper foam looks the same and performs worse.<\/p>\n\n\n
In our claims data, most damage is not at sea; it happens at the destination port and in the last-mile truck. Containers sit in the sun, pallets get forklifted hard, and local couriers stack heavy cartons on top of lighter ones. That is why the packing must survive a 1-meter drop and a 60kg carton stack, not just the ocean. If you see a pattern of corner damage, it is a handling problem at your port, and the fix is stronger corner protection, not a different mug.<\/p>\n\n\n
Three rules. First, agree the breakage allowance in the contract: we replace anything over 2% free of charge, and you photograph damaged cartons before signing the delivery note. Second, insist on a drop test video of your exact carton configuration before production. Third, if you are re-packing mugs locally into gift boxes, keep the EPS sleeve for shipping; the gift box alone is not enough protection. Buyers who follow these three rules file almost no claims.<\/p>\n\n\n