1. Record the sample identity first
Label each sample with the supplier, product name, formula or sample code, date received and proposed packaging. Photograph the unopened pack and note any transport damage. Ask how the sample should be stored and whether it represents the proposed production formulation. Keep these records alongside the quotation.
2. Use consistent test conditions
Choose the same tray, litter depth, liquid, liquid quantity, waiting period and scoop for each comparison. Record the conditions so another member of your team can repeat them. This is a practical buyer comparison, not a certified laboratory test or an industry standard. Ask for the method behind any supplier test report.
3. Review granules and pouring behavior
Check the format, visible fines, consistency and handling during pouring. Examine pellet diameter and length for tofu litter, or granule texture and distribution for cassava litter. A visual check can help shortlist products, but it cannot establish a precise airborne-dust percentage.
4. Record clumping and scooping observations
Observe how the clump forms, how it handles at your chosen waiting periods, what remains on the tray and how much unused litter is removed during scooping. Use notes and comparable photographs. Avoid comparing a long-rested sample with one scooped immediately, or changing the test conditions between products.
5. Evaluate the finished pack as well as the loose litter
Review bag closure, printing, declared weight, storage directions and carton layout. If the final product will use a different bag or formula, confirm how that change will be evaluated. Our packaging guide lists the commercial details to agree before printing.
6. Turn findings into an approval record
Summarize the accepted sample code, agreed specification, packaging proof and any unresolved questions. Discuss how the production order will be checked against that reference. If you need independent measurements or destination-specific reports, agree on the scope before ordering. Send the record with your OEM brief so the sample decision and quotation refer to the same product.