What Visible Defects Can a Garlic Sorting Machine Separate?

1. Attached Skin and Surface Color Differences

Peeled-garlic lines often still contain cloves with purple skin attached, pieces that were only partly peeled and cloves whose appearance falls outside the intended white or cream-colored grade. These are strong candidates for optical sorting because the decision is based on a visible contrast.

A WESORT garlic color sorter can be configured around the processor’s commercial standard. One customer may reject every trace of purple skin; another may accept minor skin on a lower grade. The machine recipe should follow that boundary instead of treating every color variation as waste.

Common color-related targets include:

• purple-skinned or incompletely peeled cloves;
• yellow, brown or unusually dark pieces;
• visible mold-like discoloration or stained areas;
• cloves that do not match the selected product color.

2. Broken, Damaged or Misshapen Cloves

Color is only part of the job. When a processor sells whole peeled cloves, broken pieces and severely irregular shapes can reduce the visual consistency of a packed lot even when their color is acceptable. Shape recognition can help separate these pieces according to the required grade.

The useful question is not simply whether the machine can detect “broken garlic.” The processor should define how much damage is acceptable. A small chipped edge may be allowed, while a half clove belongs in another product stream. Supplying both examples lets WESORT establish a practical boundary and check whether valuable product is being rejected unnecessarily.

3. Visible Foreign Material Mixed with Garlic

A garlic processing line may carry loose skin, roots, stems, basal-plate material, other plant residue or stones into the final inspection stage. A garlic color sorter can target these materials when their visible color, shape or texture is distinguishable from the accepted cloves.

Upstream cleaning still matters. Optical sorting works best as a focused quality-control step, not as a replacement for every cleaner in the line. Removing dust and large debris before optical inspection improves product presentation and allows the sorter to concentrate on the difficult pieces that remain.

A Real Garlic Sorting Result from Mexico

A Mexican garlic processor installed a WESORT 6SXZ-68L single-channel belt machine after peeling. The accepted target was a cleaner, more uniform group of light-colored cloves; the reject stream included cloves retaining purple skin, incompletely peeled pieces and visibly off-color material.

The belt presented the irregular cloves in a controlled layer for inspection. After sorting, the accepted product was visibly more uniform, while the separated stream contained a much higher concentration of the unwanted skin and color groups. The customer gained a repeatable quality-control step before packing and needed less repetitive visual checking.

How to Test Your Garlic Before Choosing a Machine

Start with a representative mixed sample, not a handful of obvious rejects. Include normal production variation, every unwanted category and the difficult pieces on which inspectors may disagree. Keep separate reference bags for accepted product, definite rejects and borderline cloves.

WESORT then needs the product form, typical defect ratio, required throughput, number of working hours, preferred output grades and site conditions. During a sample trial, judge both streams: check how many unwanted pieces remain in the accepted product and how much good garlic enters the reject stream. A credible result balances cleanliness, recovery and capacity under the same settings.

The WESORT garlic sorting machine uses color and shape information and a belt conveying route suited to irregular garlic cloves. Machine size and recipe should be selected only after the material and production target are clear.

Send WESORT your garlic samples and production data for a sorting test and configuration proposal.