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Esco Bars Havana 3 Quality Control Process Checklist 2026
Published 2026 · VapeWholesaleHub trade desk
Quality control is where a Havana 3 order either protects or damages downstream relationships.
A range review that ignores quality control process will often produce a confident decision and a disappointing quarter on the Havana 3.
Keeping a short internal note on quality control process for each SKU pays for itself the first time a dispute arises over the Havana 3.
Why quality control process matters on the Havana 3
Incoming inspection sampling catches most issues before they reach shops.
The most common mistake is optimising for the first order instead of the fourth, which is where Havana 3 economics actually settle.
Functional testing of a sample from each batch is standard practice.
Reference specification
| Item | Value |
|---|---|
| Model | Havana 3 |
| Brand | Esco Bars |
| Category | Vape Pens |
| Battery | 1300 mAh |
| Output range | 12-80 W |
| Capacity | 4.0 ml |
| Charging | USB-C 2A |
| Coil options | 1.0 / 1.2 ohm |
| Carton quantity | 240 units |
Documented defect rates make supplier conversations objective.
Practical notes for buyers
Keeping a short internal note on quality control process for each SKU pays for itself the first time a dispute arises over the Havana 3.
Seasonality interacts with quality control process more than most forecasts allow for, so a rolling review beats an annual one.
Checklist
- Retain one sealed sample carton from every batch for reference.
- Log sell through by account for the first eight weeks.
- Review the reorder point after one full selling cycle.
- Verify that artwork matches the approved compliance template.
- Confirm the exact configuration in writing before the deposit is paid.
- Check carton quantities against the commercial invoice line by line.
Commercial terms
Volume commitments work best when they are structured as a rolling target rather than a single fixed number.
Lead times are a function of component availability as much as factory capacity, so buffers should reflect both.
| Volume tier | Indicative unit level | Lead time |
|---|---|---|
| Carton (151 units) | Tier 1 | 21-30 days |
| Pallet (580 units) | Tier 2 | 30-45 days |
| Container (6518 units) | Tier 3 | 30-45 days |
Frequently asked questions
What defect rate is acceptable for Havana 3?
Industry practice works to a low single digit per thousand, with dead on arrival units replaced.
How quickly can a repeat order be produced?
For established configurations production typically runs two to four weeks, with transit on top depending on the chosen method.
What happens if a batch fails inspection?
The agreed procedure normally covers replacement of affected units or credit against the next order, documented before shipment.
Can several models be mixed in one shipment?
Yes, mixing models and flavours within a carton or pallet is common and usually helps first time buyers test demand.
Final word
Start with one change, measure it over a quarter, then decide whether it deserves to become policy.
Trade enquiry
Quotations, samples and artwork files are available on request. Please state model, quantity per SKU, destination and target delivery window.
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