Sodium butyrate 98% receiving inspection should verify more than the assay on the certificate of analysis. Feed-grade uncoated granules can be affected by packaging damage, moisture exposure, odor transfer and handling conditions during international transport.
A repeatable receiving procedure helps premix and compound-feed buyers distinguish a transport problem from a formulation problem and gives the supplier useful evidence if a deviation is found.
Confirm identity before unloading or release
Match the purchase order, product name, grade, lot number, manufacturing date, packaging and quantity. Winstar’s current sodium butyrate product page identifies a 98% uncoated granule for compound feed and premix. Buyers should ensure that the delivered label and COA refer to that exact product rather than a coated grade, lower assay or different butyrate source.
Check that the batch COA contains the agreed parameters and methods. The destination country’s import and feed requirements may call for additional documents, so the receiving team should have the approved document list before the container arrives.
Inspect the container, pallets and bags
Record seal numbers and examine the container for water entry, condensation, strong foreign odors, damaged flooring or evidence of pests. Photograph the loading pattern before unloading.
Check pallets and outer bags for tears, stains, compression and wet areas. Record affected bag numbers and keep them separate until quality review. Do not blend suspect material into an accepted lot before the investigation is complete.
Evaluate odor without making it the only criterion
Uncoated sodium butyrate has a characteristic odor. Receiving staff should be trained to distinguish the expected product profile from foreign odor, rancid contamination or packaging transfer. Conduct the check in a ventilated, controlled area and follow the site’s occupational-safety procedure.
Odor intensity alone is subjective and should not replace analytical testing. If the profile differs from the approved reference, compare a retained sample and review packaging, moisture and assay results.
Check granule condition and flow
Observe color, visible contamination, caking, excessive fines and unusual particle segregation. A representative sample is needed because the top bag may not reflect the whole shipment. Granule-size expectations should be part of the agreed specification when they affect premix distribution or dust control.
Simple flow observations can identify material that has taken up moisture, but use a documented method for acceptance. Record ambient humidity and sampling time where relevant.
Review storage conditions after acceptance
Store unopened bags in a dry, ventilated area, protected from water, incompatible odors and damaged pallets. Follow the current supplier label and TDS rather than applying a generic temperature or shelf-life assumption.
Use lot segregation and first-expiry-first-out controls. After a bag is opened, close it promptly and document partial-bag handling. The production team should also manage odor and dust according to the facility’s risk assessment.
Link receiving data to premix performance
If a mixing or feed-quality issue occurs, review the receiving record, retained sample, granule condition, inclusion calculation and mixing sequence together. This prevents a visual observation from being treated as proof of the root cause.
See the Sodium Butyrate product page, the broader Butyrate Series and our Latin America premix buyer checklist.
Include these points in an inquiry
- Required grade, form and specification
- Premix or compound-feed application
- Packaging and destination country
- Trial quantity and expected annual demand
- Required documents and target delivery schedule
For the current TDS, sample policy or quotation, contact Winstar Ingredients.