TL;DR
In short: Nine questions, asked in order, tell you within one call whether you are talking to a factory's own export channel or to a reseller with a photo library.
- Start with the plant: Ask plainly: “Are you the manufacturer's authorized export office, or do you buy from one?” A middleman cannot put you on a call with the plant's engineers or send you the plant's licences.
- Credentials: ISO 9001 for quality management, plus SDS, REACH and CE where they apply to your market and product category. A certificate you cannot inspect, date and match to your own category is not evidence.
- MOQ: Custom OEM programmes generally start around 20,000 cans per SKU. An existing formula in a stocked can format starts from 5,000 pcs.
- Lead time: 15–20 days from order confirmation for a standard formulation; custom formulas, new tooling or specialised valves add 15–30 days of development and sampling up front.
- Score it: Rate each of the nine answers from 1 to 5 and add them up. A total of 40–45 is a genuinely strong manufacturing partner.
Nine field-tested questions on how to choose aerosol manufacturer in China — licenses, MOQ, certifications, on-time delivery, and the proof that separates factories from trading companies.
Why "Cheapest" Is the Most Expensive Way to Source Aerosol Cans
If you have ever sourced aerosol products from China, you have probably seen the pattern: a factory quotes a price 15% below everyone else, promises a 20-day lead time, and sends sample cans that look perfect. Then the production run arrives, and the cans leak, the valve pressure is off, or the batch gets held at customs because the safety documentation does not match the shipment.
The real cost of choosing the wrong aerosol manufacturer in China rarely shows up on the invoice. It shows up in chargebacks, in warehouses full of unsellable stock, and in the three extra months you spend re-sourcing the same product.
Working with aerosol buyers across Europe, the Middle East, and Southeast Asia — with a manufacturing partner that has been producing aerosol cans since 2003 — I have learned that the difference between a reliable supplier and a disaster usually comes down to a handful of questions most buyers never ask. Here are nine of them.
1. Do You Hold Proper Aerosol Production and Dangerous Goods Licenses?
Aerosol cans are pressurized and, in most formulations, flammable. They are not treated like ordinary consumer goods. A legitimate Chinese aerosol factory must hold a production safety license for hazardous products, and the plant itself has to be built to a standard that most "trading companies posing as factories" simply do not have.
Ask for the license directly. A real factory will send it over in an email without hesitation. If the supplier hesitates, changes the subject to price, or cannot name the plant that actually fills its cans, treat that as a red flag. The useful question is not whether a supplier works with a factory — most do — but whether they are that factory's own export channel or a reseller adding a layer. Ask it plainly: "Are you the manufacturer's authorized export office, or do you buy from one?" An authorized export office can put you on a call with the plant's own engineers and send you the plant's licences; a middleman cannot. Every extra layer between you and the plant adds cost and risk.
You should also confirm who issues the certificates. For aerosol products, relevant credentials include ISO 9001 for quality management, plus compliance documents like Safety Data Sheets (SDS), REACH and CE where applicable. More on that in question five.
2. What Is Your Real MOQ — and How Flexible Is It?
Minimum order quantity is the first real filter for most new buyers. If you are launching a new brand, committing to 20,000 cans of a single SKU before you have tested the market is a fast way to burn working capital.
Custom OEM programs — your own formula, your own printed can — generally start around 20,000 cans per SKU. That is the number that matters if you need a bespoke product, and it is worth asking what it includes: tooling, artwork, and the stability testing that has to run before mass production. What far fewer buyers ask about is the stock-lot route. Buying an existing formula in a stocked can format from 5,000 pcs lets you test the market, your pricing, and your shelf placement before you commit capital to a custom run. That flexibility matters more than the headline MOQ number.
When you ask about MOQ, also ask whether the first order can be a mixed-container trial, because a supplier that lets you test with a small, varied order is signaling confidence in their own reliability.
3. What Are Your Lead Times and Monthly Capacity?
Lead time and capacity tell you two different things. Lead time tells you when your order ships; capacity tells you whether the supplier is an actual manufacturer or just a reseller with good marketing.
For a standard aerosol formulation, a realistic production lead time is 15 to 20 days from order confirmation. Custom formulations, new tooling for a private-label can design, or specialised valves add 15 to 30 days of development and sampling before the line starts. If a supplier quotes you seven days on a custom formula, be suspicious — they are either cutting corners or quoting you a number they cannot hold.
On capacity, ask what the factory's monthly output is and how many production lines they run. A genuine aerosol filling plant should be able to tell you this in one sentence. If they cannot, you are probably not talking to the people who actually fill your cans.
4. Can You Handle Custom Formulation and Private Label?
There is a big difference between buying a supplier's off-the-shelf product and having a product built around your brand. If you want your own fragrance, your own can color, your own label, and your own valve specification, you need a supplier with real R&D and formulation capability — not just a filling line.
Ask specifically:
- Do you have an in-house lab for formulation development?
- Can you source or compound custom fragrances and active ingredients?
- What is the tooling cost and timeline for a custom can or actuator design?
If the answer is "we have a partner lab" — with no name for the lab, no name for the plant it sits in, and no way to reach the chemists — the OEM/ODM capability you are buying is thinner than the sales pitch suggests. An authorized export office should be able to name the plant and its R&D team on the first call. This is covered in more depth in our guide to choosing between OEM and private label.
5. Which Certifications Do You Actually Hold?
Certifications are the most commonly fudged part of an aerosol supplier's pitch. "We are CE certified" means nothing unless you can see the certificate, confirm it is current, and check that it covers the specific product category you are buying.
Depending on your market, the documents you will need include:
- ISO 9001 — quality management system
- SDS (Safety Data Sheet) — mandatory for shipping
- REACH — for the EU market
- CE marking — for products sold in Europe
- RoHS — for compliance in electrical or specific consumer categories
Ask for a copy of each certificate before you place a deposit, and verify the company name on the certificate matches the company you are paying. You would be surprised how often it does not. Our quality and compliance page lists what a serious aerosol factory should be able to show you.
6. How Does Your Sampling Process Work?
Samples are the cheapest insurance you will ever buy in sourcing. A supplier's sample process tells you almost everything about how they will handle a full order.
Ask these three things: Is the sample charged, and is the cost refunded against the order? How many days until it ships? And can they ship internationally by express courier to your country? A supplier that charges a small fee but ships quickly and tracks the parcel is far more trustworthy than one that promises a "free sample" that never arrives.
When the sample lands, do not just smell it and move on. Check the spray pattern, the valve feel, the can finish, and the label adhesion. If the sample is sloppy, the production run will be sloppier.
7. What Is Your Export Experience with My Target Market?
Exporting aerosol is not like exporting a T-shirt. Pressurized cans are classified as dangerous goods under IMDG rules, which means the shipping documents, outer packaging, and labeling all have to be exactly right — and the requirements differ by destination.
A factory that has shipped to your market before already knows the labeling rules, the testing requirements, and the paperwork your customs broker will ask for. A factory that has not will be learning on your shipment, and delays at the port are almost always on your account.
Ask for the specific countries they have shipped to recently, and ask whether they can provide the dangerous goods documentation (DGD) and UN-certified packaging for your destination.
8. Can I Audit Your Factory — In Person or by Live Video?
Nothing replaces seeing the plant with your own eyes — and we can arrange it, on site or as a live video walkthrough of the production lines. If you can visit, do it: walk the filling lines, check the raw material warehouse, and look at the quality control area. A factory that is proud of its operation will invite you. If a plant visit is not on your route this season, meeting at a trade fair is the next best thing — we exhibited at the 32nd China Yiwu International Commodities Fair this October, booth B1B15.
If you cannot travel, ask for a live video walkthrough. A real factory can arrange a video call that shows the production floor, the filling equipment, and the quality inspection stations in real time. A trading company cannot, and you will notice them start making excuses at this exact question.
9. How Do You Handle Quality Issues After Delivery?
Every factory makes mistakes. The question is what happens next. Before you sign anything, get clear answers on:
- Who pays for a third-party inspection before shipment?
- What happens if a batch fails inspection?
- Is there a written warranty or rework policy for defects found after arrival?
A supplier with a documented quality process and a clear remediation policy is worth paying a few percent more for. The factories that go quiet the moment a problem appears are the ones that will cost you the most over time.
Put It Together: A Simple Supplier Scorecard
You do not need a formal audit to filter out bad suppliers. Score each candidate from 1 to 5 on the nine questions above, then look at the total:
| # | Question to ask | What a strong answer contains | Red flag |
|---|---|---|---|
| 1 | Licences and the plant | A dangerous goods production licence, the plant named, and the plant's own engineers reachable | The supplier cannot name the plant that fills the cans |
| 2 | MOQ and flexibility | 5,000 pcs from ready stock; 20,000 pcs per SKU for custom OEM, with what is included spelled out | A custom-programme MOQ well under 20,000 with no tooling line item |
| 3 | Lead time and capacity | A production window stated in days, plus monthly output and line count in one sentence | A custom formula promised in days rather than weeks |
| 4 | Formulation and private label | An in-house lab that can be named, with the chemists reachable | "We have a partner lab" with no name and no address |
| 5 | Certifications | ISO 9001, SDS, REACH, CE or RoHS where they apply — held by the entity you are paying | A logo with no certificate number, issue date or issuing body |
| 6 | Sampling | The fee stated up front and refundable against the order, a shipping date, and a named courier | A "free sample" that never gets a tracking number |
| 7 | Export experience | Named destination markets, plus dangerous goods documentation and UN packaging for your route | Markets described in general terms, with no recent shipments to point to |
| 8 | Factory audit | An open invitation to visit, or a live video walkthrough booked on request | Excuses that begin at this question |
| 9 | After-sales | A written policy on third-party inspection, failed batches and rework | Silence once a problem appears |
- 40–45: A genuinely strong manufacturing partner. Move forward with sampling and a trial order.
- 30–39: Acceptable, but negotiate the weak areas before committing volume.
- Below 30: Keep looking. The savings are not worth the risk.
Most buyers never run this simple exercise, and it is exactly why so many first-time aerosol importers end up with a container of problems instead of a container of product.
Why Buyers Choose Midwel
Midwel is the authorized export office of an aerosol manufacturer — the factory's own export channel, not a trading company standing between you and the plant. The plant we represent runs dedicated lines for automotive, household, and industrial aerosol products, and its in-house lab handles custom formulation and private-label development from the first sample to the finished can.
If you are currently vetting aerosol manufacturers in China, we are happy to walk you through every one of the nine questions above — including a live video tour of the factory. Browse our product range, review our certifications, or send us your specifications and we will come back with a sample plan and a quote.
FAQ: Vetting an Aerosol Manufacturer in China
How do I check whether a Chinese supplier is a real aerosol factory or a trading company?
Ask for the factory name and address, then ask the factory directly whether the supplier is their agent or a reseller. Request a live video walkthrough of the filling floor and ask one specific technical question, such as how they leak-test. The speed and specificity of the reply is the tell.
What MOQ should I expect from an aerosol manufacturer in China?
Ready-stock private label runs can start from 5,000 pcs. Fully custom OEM programmes typically begin at 20,000 pcs. A quote far below that for a custom formula usually means the supplier has not priced the tooling, filling set-up or stability testing.
Which certifications should an aerosol factory actually hold?
At minimum a dangerous goods production licence and UN packaging certification for the specific can and valve combination. Depending on your market you will also want ISO 9001 and REACH, RoHS or SASO documentation where those apply. Ask for the certificate number, issuing body and validity dates, not just the logo.
