Cleaning & Sorting
Purity is the difference between produce and a product. Cleaning and sorting is where raw intake becomes something that can be sold against a written specification.
Overview
Produce arriving from the farm carries soil, stones, dust, chaff, straw, weed seeds, broken and immature grain, and occasionally material from a different crop entirely. Cleaning removes it; sorting separates what remains into what belongs in the lot and what does not.
The sequence depends on the commodity and on the purity the buyer has specified. It typically combines size separation by sieve, density and air separation to lift lighter matter, destoning to remove heavy contaminants, and inspection to catch discoloured, damaged or otherwise defective units.
Cleaning is also a moisture control point. Produce that is above the moisture specified will not store or ship safely, so it is dried down and rechecked before it is allowed forward to grading.

Enquire about this service
Send the commodity, grade, volume, packaging and destination you need and we will respond with a written quotation and a delivery schedule.
Sales enquiries: info@ibsagro.co.tz
Telephone: +255 772 085 785
What's included
Everything below forms part of the service as standard. Anything outside it is quoted separately and stated in writing before work begins.
- Pre-cleaning to remove straw, chaff, dust and gross foreign matter
- Sieving and size separation to the specified screen
- Air and density separation to remove light material and hollow grain
- Destoning to remove stones, soil clods and other heavy contaminants
- Removal of broken, immature, shrivelled and discoloured units
- Removal of other-crop material and weed seed
- Moisture reduction and verification before release
- Purity check against the agreed specification before the lot moves on
Who this service is for
How it works
The sequence below is followed on every consignment, and each step is recorded so the consignment can be reconstructed afterwards.
Assess the lot
A sample is drawn and assessed for foreign matter, defects and moisture, which determines the cleaning sequence to be applied.
Pre-clean
Straw, chaff, dust and gross foreign matter are removed before the lot enters closer separation.
Separate
Sieving, air and density separation and destoning remove material that differs from the product in size, weight or density.
Sort
Remaining defective units — broken, immature, discoloured or damaged — are removed to bring the lot within its defect allowance.
Verify and release
A fresh sample is checked against the purity and moisture specification. The lot is released to grading only when it conforms.
Commodities this service applies to
Services often taken alongside this one
Grading & Quality Inspection
Classifying cleaned produce into defined grades and verifying, by sampling and inspection, that each lot matches the specification before it is released.
CerealsLegumes & PulsesCash Crops+1 moreRead morePackaging & Private Labelling
Packing to the buyer's format and weight, from retail units to bulk sacks, including packaging produced under the buyer's own brand.
Packaging OptionsCerealsLegumes & Pulses+1 moreRead moreCommodity Aggregation
Consolidating consignments from many smallholdings into uniform commercial lots that can be graded, priced and shipped as one.
CerealsLegumes & PulsesOilseedsRead more
Need cleaning & sorting?
Send us your requirement — commodity, grade, volume, packaging and destination — and our team will respond with a detailed quotation.