Product & Industry Guide
FDA Detention Testing for Fresh Produce Imports
Imported fruits and vegetables are frequently detained for pesticide residues and pathogens. Here's why FDA holds produce shipments, which import alerts apply, and what sampling and testing typically involve.
The Short Version
Why Fresh Produce Shipments Get Detained
Fresh produce is detained most often for illegal pesticide residues, with pathogens like Salmonella and commodity-specific alerts close behind. Fruits and vegetables are grown with agricultural chemicals that must fall within U.S. tolerances, and residues above those limits — or of pesticides not approved for that crop — trigger detention. Certain commodities also carry their own alerts for Salmonella or other pathogens. Because much produce is perishable, testing speed matters, and the exact charge determines whether the analysis targets a pesticide panel or a pathogen.
The Alerts That Apply
Import Alerts That Commonly Hit Fresh Produce
These are among the most frequent detentions in this category. Select any alert for a full plain-language guide:
Raw Produce — Pesticides
Illegal pesticide residues on raw agricultural products — the core produce pesticide alert.
Read the guide IA 99-08Processed Foods — Pesticides
Pesticide residues in processed forms of produce, such as frozen or prepared fruits and vegetables.
Read the guide IA 99-19Food Products — Salmonella
The catch-all Salmonella alert that captures produce not covered by a commodity-specific alert.
Read the guideThe Common Charges
What Fresh Produce Gets Charged For
- Pesticide Residues
- The leading produce charge — residues above U.S. tolerances (40 CFR 180) or of a pesticide not approved for that crop. Often a panel of many compounds.
- Salmonella
- A zero-tolerance pathogen charge on produce that has been linked to outbreaks or found contaminated.
- Combined Residues
- Multiple pesticides can each be under a limit yet still trigger a charge under combined-residue rules for related compounds.
- Filth
- Insect or other filth found on inspection, particularly in leafy or field-grown produce.
- Commodity-Specific Alerts
- Some fruits and vegetables from specific countries carry their own dedicated alerts (e.g., certain melons, papayas, peppers).
- Heavy Metals
- Cadmium, lead, or other metals in some produce, tied to soil or water conditions.
The Testing
What Fresh Produce Testing Involves
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Fast, Representative Sampling
A trained sampler collects representative samples across the lot under documented custody, quickly, since produce is perishable and residues can vary across a shipment.
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Analyte-Matched Analysis
The charge dictates the method: multi-residue pesticide screening by LC-MS/MS and GC-MS/MS, or microbiological culture for Salmonella, at an appropriately accredited (often LAAF) lab.
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Package & Submit
Results, methods, and custody records are assembled into an analytical package and submitted to FDA, typically via ITACS, for review. FDA makes the final admissibility decision.
Perishability and residue variability both matter. Produce degrades and residues aren't uniform, so fast, well-designed sampling is key. See how the deadlines work in the detention-to-refusal timeline.
Be Realistic
Honest Notes on Fresh Produce Detentions
Set expectations honestly
- Perishable product may not wait. Even fast testing takes days; some produce spoils before a result is possible, which factors into whether testing is worthwhile for a given lot.
- A residue that's present can't be removed. If a pesticide exceeds tolerance, testing confirms rather than clears it — washing or reconditioning rarely changes the analytical result.
- Zero-tolerance means zero. For Salmonella, a positive in a representative sample is disqualifying.
- Release isn't removal. Clearing one produce shipment doesn't lift an alert on the firm or country; that's a separate removal petition.
- No guaranteed outcome. We coordinate fast, defensible testing to give your evidence its best footing — but FDA decides admissibility.
Related
Related Guides
Private Laboratory Testing
How the analytical package that supports a release is built and submitted.
Read the guide HubAll Products & Industries
Browse detention testing guides for every product category we cover.
Browse categories HelpDetention Help Center
Notice, timeline, testing, cost, and removal — the full detention playbook.
Get helpFresh Produce Detained?
Send the Notice — We'll Match the Right Test
Send your Notice of FDA Action and the product involved. You'll get a quick, honest read on what your charge requires and what testing can do.
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FDA Detention Sampling is an independent private company. We are not affiliated with, endorsed by, or part of the U.S. Food and Drug Administration. This guide is general information about FDA import detention and testing for fresh produce; the charge and instructions on your specific Notice of FDA Action, and the applicable import alert, control. Sampling, laboratory testing, documentation, and coordination services do not guarantee FDA release, admissibility, acceptance of laboratory results, removal from any import alert, or any specific regulatory outcome. FDA makes the final admissibility decision.