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:

StageTimelineOwnerKey Output
1. Initial InquiryDay 1PartnerSubmitted inquiry with target market, capacity, and intent
2. Shihao ResponseDays 2–3ShihaoModel recommendation, indicative price, lead time estimate
3. NDA SigningDays 3–5BothSigned NDA; technical spec sheets shared
4. Sample Spec ConfirmationDays 5–8PartnerConfirmed: model, color, logo, packaging language, voltage
5. Sample Invoice & PaymentDays 8–10BothSample fee invoiced; payment received
6. Sample ProductionDays 10–35ShihaoBranded sample produced; pre-shipment photos shared
7. Sample ShipmentDays 35–42ShihaoSample dispatched via courier; tracking provided
8. Partner TestingDays 42–56PartnerFunctional, sensory, and compliance testing completed
9. Feedback & RevisionDays 56–65BothFeedback submitted; revisions agreed (if any)
10. Sample ApprovalDay 65–70PartnerSigned sample approval confirmation
11. Mass Production OrderDay 70+PartnerPO 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

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

2. Basic Operation Test

3. Processing Performance Test

This is the most important evaluation stage. Run at least three processing cycles with different waste types:

  1. 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.

  2. 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.

  3. 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:

5. Odour and Air Quality Test

6. Cleaning and Maintenance Test

7. Brand Compliance Review

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:

📹 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 TypeRevision CostRevised Sample Lead Time
Branding / artwork error (our fault)Free of charge10–14 days
Branding change requested by partnerNominal reprint cost10–14 days
Color change (existing colorway)Nominal cost14–21 days
Color change (new custom color)Color development fee21–30 days
Performance issue (confirmed production defect)Free of charge15–20 days
Performance spec change (partner request)Engineering assessment required30–45 days
New mold / structural change (ODM)Tooling + development fee45–70 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:

  1. 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.

  2. 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).

  3. 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.

  4. Production Confirmation

    Shihao confirms production start date, estimated completion date, and shipment window. Weekly production updates are provided for orders of 1,000+ units.

  5. 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:

ScenarioMOQNotes
Standard OEM (logo only, existing color)200 unitsPer SKU per order
Custom color (existing mold)500 unitsMinimum to justify color changeover
Custom packaging artwork500 unitsPer packaging run
Full ODM (new mold)1,000 unitsFirst production run; negotiable for strategic partners
Reorders (established partners)100 unitsPriority 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:

✅ 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.

Request a Sample → Browse Product Lines

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