Best Machine Vision Components and Technology for Food & Beverage Inspection

Food and beverage manufacturing is one of the most demanding environments for machine vision hardware. The cameras, lighting, and enclosures need to survive washdown, temperature extremes, humidity, and dust while running reliably at production speed. Get the hardware specification wrong and you end up with a system that works in the test lab but corrodes, fogs, or fails within months on the production line.

This article covers what OEMs and system integrators need to consider when selecting machine vision components for food and beverage applications: camera type, environmental protection, illumination, optics, and software. We have included specific product recommendations from the Clearview range where they are relevant.

Start with the environment, not the camera

Before choosing a camera, understand what it will have to survive. Food production environments are broadly split into three zones that determine the level of protection required.

The most common mistake is specifying a camera that meets the inspection requirement perfectly but cannot survive the cleaning regime. An IP40 camera that delivers excellent images will not deliver anything after its third washdown cycle.

Choosing the right camera type

Food and beverage inspection uses all three main camera types, depending on the application.

Area scan: the default for station-based inspection

Area scan cameras are the right choice for triggered inspection stations: label verification at a fixed point, cap and closure checking, fill-level measurement, barcode reading, and presence/absence checks. The camera triggers as each product arrives, captures a frame, and processes it before the next product appears.

For splash and washdown zones, cameras with native IP67 ratings eliminate the need for external enclosures. The LUCID Triton (GigE, IP67) and Triton2 (2.5GigE, IP67) are both well-suited to food production environments, with sealed M12 data connectors and M8 power/GPIO connectors that maintain their rating through repeated cleaning. For dry areas, the Teledyne Blackfly S range offers a broad selection of sensors and interfaces at competitive price points.

Line scan: for continuous inspection and wide-format labels

Line scan cameras are used when the product moves continuously past the camera and you need to inspect the full surface or label without stopping the line. This is common in label verification on continuous packaging lines, wrap-around label inspection on cylindrical containers, and web inspection on packaging films.

The Teledyne Tetra range (2K to 8K, 2.5GigE) brings line scan to a price point that was previously only achievable with area scan. For higher resolutions and faster line rates, the established Linea families with Camera Link HS interfaces cover the full range up to 16K.

Smart cameras: self-contained inspection without a PC

Smart cameras combine image capture, processing, and decision output in a single unit. They are the right choice for simpler inspection tasks where a dedicated PC would be over-engineered, so ideal for single-point barcode reading, basic presence/absence checks, or simple label verification on a single product format.

Zebra smart cameras and fixed industrial scanners are widely used in food production for barcode reading and simple quality checks. For more complex inspections (multi-point, multi-camera, or applications requiring custom image processing), a PC-based system with industrial cameras is more appropriate. The Zebra Iris GTX offers an intermediate option. A smart camera with genuine processing power and the flexibility of the Zebra Design Assistant software platform, housed in a compact form factor. Where IP67 protection is required, both the Triton and the Iris GTX can be housed in IP67 enclosures.

Multiple cameras: when one is not enough

Many F&B inspection applications require more than one camera. A label verification system might need one camera for the front label, one for the back, one for the top (date code), and one for the barcode. A six-sided scan tunnel for logistics might need multiple cameras covering every visible face of the carton.

For multi-camera systems, GigE is the preferred interface because each camera connects independently to a network switch, avoiding the bandwidth sharing and enumeration issues that can affect USB3 in multi-camera setups. The LUCID Triton and Triton2 ranges, with native PoE and IP67, are particularly well-suited to multi-camera food production systems because a single Ethernet cable handles data and power for each camera. Read our interface comparison blog for more info on which interface to choose.

Illumination: the most critical component

Lighting in food production environments needs to solve two problems at once. it must create the right contrast for the inspection task, and it must survive the same environmental conditions as the camera.

For washdown environments, Advanced Illumination's UltraSeal range is specifically designed for food production. These are IP69K-rated LED lights that withstand high-pressure, high-temperature washdown cleaning. They are available in bar, spot, ring, and backlight configurations across visible and infrared wavelengths. Standard machine vision lights that are not designed for washdown will fail, often within weeks of installation in a wet production area.

The choice of lighting geometry depends on the inspection task. Reflective packaging (glossy film, metallised labels, foil trays) creates specular reflections that can obscure the features being inspected. Diffuse dome lighting or structured backlighting is typically required for these materials. Transparent packaging (clear bottles, blister packs) often needs backlighting to create silhouette contrast for fill-level and presence/absence checks.

Getting the lighting right is the single biggest determinant of system performance. A well-lit image with a modest camera will outperform a poorly-lit image with an expensive camera. If you are unsure about the lighting approach for a specific packaging format, we can work with your samples in our Insights Lab, under different lighting configurations before you commit.

Optics and enclosures

In washdown environments, the lens is a vulnerability. Even if the camera body is IP67, a standard C-mount lens is not. There are two approaches to protecting the optics.

The first is to use a camera with a native IP67 lens enclosure. The LUCID Triton cameras accept lenses inside their IP67 housing, with a protective window that seals the optical path. This is the cleanest solution because the entire camera-plus-lens assembly is a single sealed unit.

The second is to house a standard camera and lens in an external IP67 enclosure. This adds cost and bulk but allows you to use any camera and lens combination. The Zebra Iris GTX is available with IP67 enclosures for food production deployment. This approach makes sense when the application requires a specific lens type (telecentric, macro, or a very short or long focal length) that does not fit inside a native IP67 camera housing.

Software: what the application needs to do

The software side of food and beverage inspection typically involves one or more of the following tasks, and the software platform needs to support all of them within a single application.

Clearview's proprietary Kinetic Velocity software platform is purpose-built for label verification, combining pattern matching, barcode reading, OCR, and date code verification in a single application. For broader inspection requirements that go beyond label verification, Zebra Aurora (Design Assistant for no-code development, Aurora Imaging Library for SDK-based integration) provides the flexibility to build custom inspection applications covering all of the tasks above.

Emerging technology: beyond visible light

Three imaging technologies are increasingly relevant in food and beverage inspection, addressing requirements that standard visible-light cameras cannot meet.

Hyperspectral imaging analyses the spectral signature of materials across many wavelength bands. In F&B, this enables detection of foreign bodies, contamination, and quality grading that is invisible to standard cameras. Hyperspectral is being adopted in premium applications such as sorting by ripeness, detecting plastic contamination in meat processing, and verifying product composition. The technology is still expensive and data-intensive, but costs are decreasing and processing is becoming faster.

SWIR (short-wave infrared) imaging can see through certain packaging materials and detect moisture content, fill levels in opaque containers, and material composition differences that visible light cannot reveal. LUCID's Atlas SWIR cameras are making this technology more accessible for industrial applications.

Thermal imaging is used for process monitoring (verifying seal temperatures, monitoring cooking and cooling processes) and for detecting equipment faults before they cause production issues. Thermal cameras cannot see through glass, so they must have direct line-of-sight to the target surface.

These technologies are not replacements for standard visible-light inspection. They are additions for specific high-value applications where standard imaging reaches its limits.

Ready to specify?

If you are building or upgrading an inspection system for food and beverage production, Clearview's engineering team can help you select the right combination of cameras, lighting, optics, and software for your specific application and environment.

For label verification specifically, see our dedicated Label Verification Solutions page, covering in-line, off-line, and point-of-print verification powered by Kinetic Velocity.

Get in touch: info@clearview-imaging.com | +44 (0)1844 217270