Field Reports: Shiloh Foods takes side dishes to a new level

X-ray technology locates small pieces of metal in products packaged in metallic or aluminum trays.

Shiloh Foods uses Loma Systems’ AXIS X-ray unit for metal detection on its entire product line including its Cinnamon Apple casseroles. Source: Loma Systems.

WHEN SIDE DISH MANUFACTURER Shiloh Foods was reevaluating its HACCP program, it was also undertaking a new product launch. Up until that point, the company had been packaging its mashed and sweet potatoes, broccoli and cheese, corn pudding, squash, and carrot souffl?asserole side dishes in either paperboard or plastic containers and had been relying on pipeline metal detectors to detect metal fragments.

“Once we decided to add foil trays to our product line, that’s when we turned to X-ray technology,” said Ken Kreider, vice president of operations at Shiloh. The catalyst was a new bread and potato-based dressing product line that could not be mixed or agitated, but instead, had to be ladled into the foil trays.

Since many of side maker’s ingredients start off as agricultural products, small pieces of contaminants such as gravel, glass, stones and dirt clumps sometimes find their way on to the processing line. Metal detectors do not have the capability of identifying those types of contaminants, but X-ray inspection units do. In addition X-ray technology can find small pieces of metal within a metallic or aluminum tray.

Shiloh decided to install a Loma AXIS unit which uses .8 mm linear array technology to scan product up to hundreds of times per second as it passes through the aperture.

When placed together, these “slices” form an X-ray image and create a data matrix on X and Y coordinates for analysis. When an abnormal density characteristic is detected, it is highlighted on the live X-ray image and the system automatically rejects the product for further operator or quality assurance analysis.

Shiloh has been running all of its products–not just those in foil trays–through the Axis X-ray unit. The packaging mix for the product line consists of 2-, 4.5-, 5- and 7-pound foil trays; and 1- and 3-pound sizes in either plastic or paperboard containers. The trays vary in size from 8- to 13-inches long and 6- to 11-inches wide.

The Loma unit features Intralox conveyor belting. The design of the unit also offers maintenance cost-savings for Shiloh. “All you have to do is clean the belt at the end of the shift,” Kreider explains. “We’ve experienced quite a bit of cost-savings when compared to our pipeline metal detectors which require more labor intensive sanitation.”

In addition to the non-food, agricultural field particulate, the unit is also able to detect product clumps such as salt and sugar which were not properly blended during the processing stage.

Did you enjoy this article? Click here to subscribe to Food Engineering Magazine.

You must login or register in order to post a comment.



Image Galleries

Plant of the Year 2015

Mars Chocolate was chosen as Food Engineering’s 2015 Plant of the Year. The first new Mars candy plant in North America in 35 years is not only LEED Gold certified, it’s highly automated as well.


Burns & McDonnell project manager RJ Hope and senior project engineer Justin Hamilton discuss the distinctions between Food Safety and Food Defense as well as the implications for food manufacturers of the Food Safety Modernization Act.
More Podcasts

Food Engineering

Food Engineering April 2015 Cover

2015 April

The April 2014 issue of Food Engineering features the Plant of the Year: Mars Chocolate. The first new Mars chocolate candy plant in North America in 35 years is not only LEED Gold certified, it’s highly automated as well.

Table Of Contents Subscribe

Plant Facility/Site Issues

What issue about your current plant facility/site keeps you up the most at night?
View Results Poll Archive


Food Authentication Using Bioorganic Molecules

This text provides critical tools and data needed to augment routine food analysis and enhance food safety by aiding in the detection of counterfeit, and potentially deleterious, foods.

More Products

Clear Seas Research

Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications,Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.


FE recent tweets

facebook_40.pngtwitter_40px.pngyoutube_40px.png linkedin_40px.pngGoogle +

Food Master

Food Engineering Food Master 2015Food Master 2015 is now available!

Where the buying process begins in the food and beverage manufacturing market. 

Visit to learn more.