Why Do Food Containers Get Held at Customs (and How Do I Prevent It)?

The Three Buckets of Customs Holds

Every food container that gets stopped at a port falls into one of three buckets. I've watched this play out across hundreds of shipments, and the bucket determines how fast you can get the container released and how much it costs you. If you're new to importing, learn these three categories first — they shape everything else in this post. For a deeper primer on the documents involved, see our food import documentation guide.

The three buckets are document holds, regulatory holds, and physical inspection holds. They have different triggers, different timelines, and very different fixes.

A single container can be held under more than one bucket at the same time. I've seen a Kenya-bound container flagged on documents (mismatched gross weight), then routed for KEBS sampling once the documents were cleared, then sent for X-ray scanning by Customs. That one took 18 days to release. Three buckets stacked back to back.

The Eight Most Common Reasons Food Containers Get Held

These aren't theoretical. These are the eight reasons I've actually had containers held over the last three years, ranked roughly by frequency. If you fix these eight things, you fix maybe 90% of the holds you'd otherwise face.

1. Mismatched quantities or weights between documents. The bill of lading says 1,920 cartons. The packing list says 1,920. The commercial invoice says 1,902. Inspector flags it. The fix takes a corrected commercial invoice with a notarized declaration in some countries — three to seven days.

2. Wrong or inconsistent HS code. Your broker filed under one tariff code, the commercial invoice shows another, and the destination customs algorithm picks up the discrepancy. HS code mismatches also trigger duty disputes, which can stretch holds into a second week.

3. Late or missing FDA Prior Notice (for U.S. departures and re-exports). Prior Notice must be filed before the vessel departs the U.S. port — not at arrival. A missing Prior Notice generates an automatic FDA hold the moment the container moves through any U.S. port.

4. Product not registered with the destination food authority. NAFDAC, COFEPRIS, MFDS, GACC — they all require the specific product (not just the supplier) to be registered before commercial import. Importing an unregistered SKU even once will get the container detained until you produce the registration or surrender the product.

5. Missing or expired certificate of origin. Especially painful in trade-bloc imports — ECOWAS, EAC, USMCA, KORUS — where the certificate determines whether you pay duty or claim a preferential rate. An expired or wrong-format certificate triggers a re-classification hold.

6. Label non-compliance. Wrong language, missing nutritional panel in the local format, missing local importer details, missing batch and expiry codes printed in the right place. Label issues are usually caught at physical inspection rather than document review, which means they stretch the hold longer.

7. Random selection for inspection. The boring one. Customs systems randomly route a percentage of containers into the red or yellow lane regardless of paperwork. This is unavoidable. The only thing that helps is making sure your paperwork is so clean that the inspector clears you in two days instead of seven.

8. Suspected misdeclaration based on scanner anomaly. X-ray and gamma scanners look at density patterns. A container packed unevenly, with mixed product densities, or with visible voids gets flagged. Even when nothing is wrong, the inspector has to physically open and verify.

Customs inspectors aren't trying to catch you. They're trying to clear their queue. If your paperwork answers their questions before they have to ask, you move through. If it makes them stop and think, you sit. That's the entire game.

— Elhadji Sy, Project Manager, U.S. International Foods

What a 10-Day Hold Actually Costs

A lot of new importers underestimate this. They assume a customs hold is a delay, not a cost. In practice, the meter starts running on day one, and by day ten you're looking at thousands of dollars on a single 40ft container — separate from any duty or fine.

Here's the real bill on a 10-day hold at a typical West African or Latin American port:

That's roughly $2,700 on a clean hold and $4,000+ on a complicated one — before you count product spoilage, missed retailer windows, or the cash flow impact of capital sitting in a port for two weeks. For more on the demurrage portion specifically, see our guide to avoiding demurrage fees.

Inside a Customs Hold — Hour by Hour

It helps to understand what's actually happening when your container is held, because the timeline gives you specific moments where you can intervene. Here's how a typical document hold unfolds, hour by hour, after the vessel discharges.

Destination Food Authorities Worth Knowing

The food authority on the destination side is usually a separate hold lane from regular customs. Even after customs releases your container, the food authority can keep it in the port. Here's a quick map of the regulators that matter most on the lanes we ship.

Nigeria — NAFDAC. Every imported food product must have a NAFDAC registration number for the specific SKU. The PAAR system feeds NAFDAC automatically; if the registration is expired or doesn't match the imported product exactly, the container is detained. See our Nigeria import guide for the full registration timeline.

Kenya — KEBS. Pre-Export Verification of Conformity (PVoC) certificate must be issued by an approved inspection company (Bureau Veritas, SGS, Intertek, COTECNA) before the goods leave the U.S. Without a Certificate of Conformity, KEBS will not allow release at Mombasa.

Mexico — COFEPRIS. Sanitary registration is required for processed food, supplements, and certain ingredients. The pedimento includes the sanitary code, and a missing or invalid code triggers an automatic hold.

South Korea — MFDS. Pre-import notification must be filed through the FIMS system before vessel arrival. MFDS sampling rate is the highest of any market we work in — roughly 5–15% of food containers, with first-time importers getting selected almost every time.

China — GACC. Both the foreign manufacturing facility and the specific product must be registered in GACC's CIFER system. Without facility registration, the container is held at the port and eventually re-exported at the importer's cost — there is no path to release.

Côte d'Ivoire / Senegal / Ghana — VOC programs (Bureau Veritas, COTECNA). Pre-shipment inspection certificates must be issued before departure. We covered this in detail for Côte d'Ivoire and Senegal.

How to Prevent a Hold Before It Happens

Now the practical part. After running this process on hundreds of containers, here's the pre-arrival checklist I use on every shipment. None of it is exotic. Most of it is just discipline applied two to three weeks before the vessel sails.

What to Do If Your Container Is Already Held

Sometimes prevention failed and you're already on day three of a hold. Don't panic, but don't wait either. The cost of a hold compounds daily, so every hour matters. Here's the order of operations I run when a client calls in panic mode.

Get the exact reason code in writing. Customs systems issue a reason code with every hold — "document discrepancy," "manifest mismatch," "regulatory hold pending," "selected for examination." Your broker should have this within 24 hours of the hold being placed. If your broker is vague about the reason, you have a broker problem, not a customs problem.

Calculate the daily bleed. Pull the carrier's tariff, the terminal storage rate, and the broker's hold-handling fee. Add them up. Now you know the cost of every additional day, which tells you how aggressively to spend on expediting.

Push for a single-issue resolution path, not a global review. If the hold is a quantity mismatch, fix the quantity. Don't let the broker open a "comprehensive review" that reopens questions on weight, value, and HS code. One issue, one fix, fast release.

Document everything for dispute. If the hold is the carrier's or terminal's fault — wrong manifest, late discharge, missing notification — request a free-time extension in writing on day one of the hold, not after the fees accrue. Carriers are bound by the U.S. FMC 2024 Final Rule on demurrage billing and you have 30 days to dispute charges.

What We Recommend at U.S. International Foods

For new importers, work with an exporter or freight forwarder who runs the pre-shipment compliance check for you. We coordinate document reconciliation, food authority registrations, and broker handoffs as part of our standard export services, so the importer doesn't have to learn destination customs from scratch on their first container.

For experienced importers scaling beyond a container a month, the move is to build a single document master template, lock in one broker per destination, and run the pre-arrival checklist on every shipment without exception. The 30 minutes of pre-departure document review will save you a five-figure hold three or four times a year. To get started or to audit your current process, browse our product catalog, read the beginner's guide to importing American food, or apply to distribute with us.