The Shipment Customs Opened
Late November last year, a batch of freezers we shipped to Seattle arrived at the port. The client opened the crates and found five units with water stains on the bottom, and a few rust spots on the brushed panels. Their QC guy emailed us the same day. The photos were clear, and the conclusion was firm: moisture protection failed at the factory. They wanted us to cover the full cost of repolishing, and they put future orders on hold.
I didn’t believe it at first. I remembered that batch leaving the plant. It was cold in the workshop around that time, and I specifically told the QC team to press down every seal on the moisture barrier by hand before sealing the crates. Each crate had eight packs of desiccant. The PE film was sealed with butyl tape — the proper stuff. We had video footage.
But the client said no. The photos don’t lie. The rust spots were real.
Our first move was to find the cause. We couldn’t. No rain during the trucking leg. Nothing unusual at loading. I asked the client if they’d taken any photos of the moisture barrier when they first opened the crates. They said no, no unboxing video. That left us stuck.
Then I remembered — the Seattle shipment had been pulled for a U.S. Customs inspection three days after it hit the port. So we asked the client’s broker to pull the Customs inspection records. Took a few days. When they came back, the photos were in there. And it all made sense.
When Customs opened the crates, they cut through our butyl tape and peeled the moisture barrier back from the side. After the inspection, when it came time to reseal, they didn’t use the spare roll of butyl tape we’d placed inside the crate. They just used regular clear office tape — two strips. That spare roll was sitting right there in the box. Our packing list even said: “If opened, use the spare tape provided to reseal.” But nobody reads that.
After that, the shipment sat on the port terminal for another nine days. Seattle in November — daytime around ten degrees Celsius, nighttime near freezing, and the humidity near the water is brutal. During the day, the container breathes in warm, moist air. At night, it cools down and condensation forms inside. Office tape isn’t stopping any of that. Moisture crept through the gaps, sat in there for nine days, and the rust spots started.
I laid the whole chain out for the client: the factory video showed the seals were intact before shipping → the Customs inspection records showed the seals were cut open → the reseal used regular tape → the container sat at the terminal for nine days → and I attached the local weather data for that period. I didn’t argue about who was to blame. I just said, here’s what happened.
The client didn’t respond for a while. Then their QC manager called me. His tone had softened. He said, “The Customs inspection part — we really can’t control that. What do we do going forward?”
We made three changes after that. First, we put a big English warning label on the outside of every crate: if Customs opens this crate, please use the spare sealing tape inside to reseal the moisture barrier. Second, we upgraded the packaging to a double-layer moisture barrier. If the outer layer gets cut open, there’s still an independent PE bag protecting the unit inside. Third, we made an agreement with our destination agent: any shipment that gets opened by Customs gets prioritized for inspection after pickup, and if there’s any sign of moisture, we do a wipe-down and drying procedure on the spot.
We covered the cost of repolishing those five units. Not because it was our fault — but because the client didn’t ask for any of this either, and I can’t blame Customs for not reading our packing list. That’s just how export works. You never know who’s going to open your crate, how many times, or what the weather’s doing outside. All you can do is plan for the worst possible version of the journey.
Questions about export packaging standards or moisture protection for stainless steel equipment? Contact our engineering team for a technical consultation.
Frequently Asked Questions
How do you pack stainless steel equipment for ocean freight?
Every crate gets a PE moisture barrier sealed with butyl tape and desiccant packs sized to the crate volume — the same system described in this case. Full packing spec: packaging and shipping.
What should I film when unboxing equipment at the port?
Film the crate opening continuously from the first cut — especially the moisture barrier condition before anything is removed. This case shows exactly why: with an unboxing video, the cause was traced in days instead of stalling for weeks.
Who is responsible if customs handling damages the goods?
It depends on the shipping terms and the evidence. Documented packing condition, unboxing footage, and the survey report together determine liability — which is why we pack to survive inspection and tell clients to record the opening.