One of the most common questions we receive from new B2B partners is: "How does the sample process work, and what should I actually test?" It's a good question — and the answer matters more than most buyers realise.
A well-executed sample evaluation is the single most valuable step in any OEM engagement. Done properly, it eliminates surprises at mass production, establishes performance benchmarks for QC inspections, and gives both parties a shared reference point for the product's expected behaviour.
This guide walks through Shihao's complete sample and testing process — from the moment you make first contact to the moment your mass production order is confirmed.
"Never skip the sample stage. Reading a spec sheet cannot tell you how a composter smells at hour three of its cycle, or how much vibration it transmits to a stone countertop at 2am."
— Shihao Intelligent, Quality Assurance Manager
Process Overview
Shihao's B2B engagement follows a structured, sequential process designed to protect both parties and produce a clear outcome at each stage. Here is the full timeline at a glance:
| Stage | Timeline | Owner | Key Output |
|---|---|---|---|
| 1. Initial Inquiry | Day 1 | Partner | Submitted inquiry with target market, capacity, and intent |
| 2. Shihao Response | Days 2–3 | Shihao | Model recommendation, indicative price, lead time estimate |
| 3. NDA Signing | Days 3–5 | Both | Signed NDA; technical spec sheets shared |
| 4. Sample Spec Confirmation | Days 5–8 | Partner | Confirmed: model, color, logo, packaging language, voltage |
| 5. Sample Invoice & Payment | Days 8–10 | Both | Sample fee invoiced; payment received |
| 6. Sample Production | Days 10–35 | Shihao | Branded sample produced; pre-shipment photos shared |
| 7. Sample Shipment | Days 35–42 | Shihao | Sample dispatched via courier; tracking provided |
| 8. Partner Testing | Days 42–56 | Partner | Functional, sensory, and compliance testing completed |
| 9. Feedback & Revision | Days 56–65 | Both | Feedback submitted; revisions agreed (if any) |
| 10. Sample Approval | Day 65–70 | Partner | Signed sample approval confirmation |
| 11. Mass Production Order | Day 70+ | Partner | PO issued; mass production begins |
For partners working on existing, unchanged models (pure OEM branding), the process is typically faster — some partners complete steps 1–10 in under 45 days total.
Sample Fees and What They Cover
Shihao charges a sample fee for all new partner sample orders. This is standard in B2B manufacturing and reflects the actual cost of producing a small quantity with custom branding, packaging, and documentation outside of regular production runs.
What the Sample Fee Covers
- Production of 1–3 units with your logo, brand name, and colorway applied
- Custom retail packaging printed with your brand (if specified)
- User manual in your target market language
- Regional power cord and plug type for your target market
- Pre-shipment quality inspection and photo documentation
- DHL or FedEx express courier shipment to your address
Sample Fee Deductibility
For partners who proceed to a mass production order of 500 units or more, the sample fee is fully deductible from the first production invoice. The sample is not a sunk cost — it's a deposit against your first order.
💡 How Many Samples Should You Order?
- 1 unit: Sufficient for internal decision-making and executive sign-off
- 2 units: Recommended — one for functional testing, one for packaging/display review
- 3 units: Best for brands that need to submit to a third-party lab for certification pre-screening or retailer buyer approval
What to Test — A Buyer's Evaluation Checklist
Most first-time buyers focus on aesthetics and basic function. That's necessary, but not sufficient. Here is a structured evaluation framework covering all the dimensions that matter for a commercial launch:
1. Unboxing and First Impression
- Does the packaging arrive undamaged? (Assess courier-readiness)
- Is the branding applied cleanly — no bleed, no misalignment?
- Is the user manual present, in the correct language, and accurate?
- Are all accessories included? (Power cord, filter, user guide, warranty card)
- Does the unit feel premium at first touch — weight, surface finish, lid action?
2. Basic Operation Test
- Power on cleanly with no error codes on first use?
- Touch pad controls responsive and clearly labelled?
- LED display (where applicable) legible in normal room lighting?
- Lid opens and seals correctly — no rattling or gap?
- Waste bucket removes and reinserts smoothly?
3. Processing Performance Test
This is the most important evaluation stage. Run at least three processing cycles with different waste types:
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Cycle 1 — Standard Mixed Waste (half capacity)
Load with fruit peels, vegetable scraps, eggshells, and bread. Fill to approximately 50% of bucket capacity. Run a full cycle. Measure: cycle time, noise level at 1 metre, output texture (should be dry, crumbly powder/granules), and residual odour after lid opens.
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Cycle 2 — Protein-Heavy Waste (half capacity)
Load with cooked chicken scraps, fish trimmings, and meat fat. This is the most odour-intensive test. Assess: cycle time extension vs cycle 1, odour during operation (should be minimal outside the unit), output texture, and whether the activated carbon filter handles the load.
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Cycle 3 — Full Capacity Load
Load to maximum capacity with a mix of wet and dry waste. Measure: total cycle time (should be 4–8 hours for 3L–4L units), noise consistency throughout, volume reduction achieved (target: ≥90% reduction), and output moisture (should be dry enough to crumble by hand).
4. Acoustic Test
Use a smartphone sound meter app (free tools are sufficient for this evaluation) to measure:
- Operating noise at 1 metre during active grinding phase (target: ≤45 dB for standard models, ≤35 dB for 5.5L flagship)
- Noise at 3 metres (relevant for open-plan kitchen placements)
- Vibration transmitted to countertop (place hand flat on counter surface)
- Noise at 1am vs 1pm — subjective perception testing in a quiet environment
5. Odour and Air Quality Test
- Open the lid immediately after cycle completion — any noticeable residual odour?
- Sniff the air vent during operation — activated carbon should suppress all food odour
- Test in a small enclosed kitchen (worst-case environment) — does odour escape?
6. Cleaning and Maintenance Test
- Remove the waste bucket — is it dishwasher-safe? Does food residue release easily?
- Detach and reassemble the air duct system (where applicable) — is it intuitive?
- Clean the grinding chamber — accessible without tools?
- Inspect the activated carbon filter — easy to locate and replace?
7. Brand Compliance Review
- Logo position, size, and colour match your brand guidelines?
- Product colour matches your approved Pantone/RAL reference?
- Packaging artwork matches your approved design file?
- Certification marks visible and correctly positioned?
- Barcode / UPC scannable?
How to Submit Effective Feedback
Clear, specific feedback is the difference between a one-revision process and a four-revision process. Shihao provides a structured Sample Evaluation Report (SER) template with every sample shipment. We recommend completing it fully before submitting feedback.
For each issue identified, specify:
- Category: Is this a branding issue, a performance issue, a packaging issue, or a documentation issue?
- Severity: Blocker (cannot proceed), Major (must fix before mass production), Minor (nice-to-fix, acceptable if unchanged)
- Reference: Photo, video, or timestamp where possible
- Expected standard: What should it look like / sound like / feel like?
📹 Video Evidence Is Invaluable
If you identify a noise issue, a UI quirk, or a performance problem, a short video (even filmed on a smartphone) eliminates ambiguity immediately. Our engineering team can diagnose and confirm a fix far faster from a 30-second video than from a written description.
Revision Policy
Shihao's revision policy for sample-stage issues:
| Issue Type | Revision Cost | Revised Sample Lead Time |
|---|---|---|
| Branding / artwork error (our fault) | Free of charge | 10–14 days |
| Branding change requested by partner | Nominal reprint cost | 10–14 days |
| Color change (existing colorway) | Nominal cost | 14–21 days |
| Color change (new custom color) | Color development fee | 21–30 days |
| Performance issue (confirmed production defect) | Free of charge | 15–20 days |
| Performance spec change (partner request) | Engineering assessment required | 30–45 days |
| New mold / structural change (ODM) | Tooling + development fee | 45–70 days |
In practice, most OEM sample revisions are branding and packaging adjustments — resolved in one or two rounds. Performance issues at the sample stage are rare given our pre-shipment QC process, but when they occur, they are always resolved at Shihao's cost.
Sample Approval and Moving to Mass Production
Once you're satisfied with the sample, the approval process is straightforward:
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Submit Signed Sample Approval Form
Shihao provides a one-page Sample Approval Confirmation (SAC) form. This documents the exact product specifications — model, color, logo position, firmware version, accessories, and packaging — that are to be replicated in mass production. Both parties sign it.
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Issue Purchase Order (PO)
Your formal PO referencing the approved sample specifications. Include: model code, quantity, delivery destination, required ship date, and any specific QC requirements (e.g. third-party pre-shipment inspection).
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Deposit Payment
Standard payment terms are 30% deposit on PO, 70% balance before shipment. For established partners, extended terms are available on request. Sample fee is deducted from the deposit invoice.
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Production Confirmation
Shihao confirms production start date, estimated completion date, and shipment window. Weekly production updates are provided for orders of 1,000+ units.
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Pre-Shipment Inspection (PSI)
For orders of 500+ units, Shihao conducts an internal pre-shipment inspection against the approved sample specification. Results (including pass/fail data, photos, and measurement records) are provided before goods are shipped. Partners may also arrange third-party PSI (SGS, Intertek, BV) at their own cost — Shihao facilitates access.
Minimum Order Quantities
Shihao's MOQ policy is intentionally flexible, especially for new market-entry partners:
| Scenario | MOQ | Notes |
|---|---|---|
| Standard OEM (logo only, existing color) | 200 units | Per SKU per order |
| Custom color (existing mold) | 500 units | Minimum to justify color changeover |
| Custom packaging artwork | 500 units | Per packaging run |
| Full ODM (new mold) | 1,000 units | First production run; negotiable for strategic partners |
| Reorders (established partners) | 100 units | Priority scheduling for active accounts |
We understand that market-entry volumes are inherently uncertain. We would rather support a partner through a successful 200-unit test run than lose a long-term relationship over an MOQ disagreement. If your situation is unusual, raise it in your inquiry — we'll work with you.
After-Sales Support Post-Launch
The sample and production process is not the end of Shihao's involvement. Our post-shipment commitments include:
- 0.1% FOC (Free of Charge) spare components included with every shipment — pre-positioned for warranty claims
- Replacement parts supply within 20–40 business days of request
- Quarterly A/S Strategy Meetings — proactive review of field failure data, return reasons, and improvement actions
- 10-day root cause analysis on any confirmed production-related defect, with corrective action report
- Year-1 failure rate guarantee: ≤2% — if exceeded, Shihao replaces affected units at no cost
✅ Key Takeaways
- Sample lead time: 30 days on existing tooling (OEM); 45–70 days for ODM with new mold
- Sample fees are fully deductible from first mass production order (500+ units)
- Run at least 3 processing cycles — mixed, protein-heavy, and full-capacity — during evaluation
- Submit structured, specific feedback with photos or video for fastest resolution
- MOQ starts at 200 units for standard OEM; negotiable for all project types
- Post-shipment: 0.1% FOC spares, ≤2% year-1 failure guarantee, 10-day defect response
Ready to Request Your First Sample?
Submit a B2B inquiry specifying your target market, preferred capacity, and intended volume — and we'll have a proposal with model recommendations and sample pricing to you within 1 business day.
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