If you have a fixed launch date, ask for the schedule as four separate numbers, not one. A bottle factory should confirm the date the physical sample ships, the date bulk production starts, the date production finishes, and the estimated sailing date. One lead time figure hides the stage you actually need to control.
Quick answer
- Ask for four dated milestones — sample shipped, production start, production finish, estimated sailing — written on the quotation.
- Lead time only starts once drawings and Pantone shade are approved; unapproved artwork resets the clock.
- Peak season compresses scheduling but never the queue in front of you. Book the slot before you need the goods.
Why does one lead time number hide the risk?
A quotation that says “lead time 35 days” has told you almost nothing, because 35 days could mean the same calendar period for two completely different projects. One might contain a stock mould running on an idle line; the other might contain a new tool that has not been cut yet. Both read as 35 days on paper and behave nothing alike in practice.
The reason is that a single figure has to absorb every variable: tooling, sample rounds, artwork approval, colour matching, your own decision latency, and the factory’s queue position in that week. When those move in opposite directions, the average number stays plausible while the real date drifts.
| What a single “35 days” can hide | Short version | Long version | How to tell which you have |
|---|---|---|---|
| Mould status | Existing mould on the shelf | New tool that must be cut first | Ask whether a mould fee appears on the quotation |
| Sample rounds | One sample, approved first pass | Two or three rounds, each a cycle | Ask how many physical samples are included |
| Artwork | Print files already prepared | Colour still being matched | Ask whether a Pantone approval is outstanding |
| Your own decision time | Feedback within 48 hours | Feedback in two weeks | Name a date for your approval, not a duration |
| Factory queue | Slot open in the requested week | Slot open five weeks later | Ask which week production is scheduled to start |
What you want in writing is a date on each of these, not a duration on the whole thing. A supplier who cannot give four dates usually does not know which of the four is the problem.
What buyers actually asked us
Across the inquiries we handled, two things came up again and again, and both were really the same question asked by different people: when will it actually arrive, and can you hold me to that?
As this is a high-priority and time-sensitive project, we would highly appreciate your urgent support in sharing any suitable options from your existing portfolio. We are currently evaluating potential solutions on an accelerated timeline.
— regional purchasing team, multinational personal care group
This one is about urgency management rather than production speed. The buyer did not ask for a shorter lead time; they asked for an existing portfolio to be surfaced quickly so that an evaluation could start. The answer is a catalogue response, not a production promise — and it is a much faster answer to give.
The second recurring element is a date the buyer is working backwards from. A launch date, a trade show, a retail appointment or a seasonal window all behave the same way once they are on the calendar: they turn “how long does it take” into “which week can you start”.
| What the buyer is working back from | What they need from the factory | Why a duration figure is not enough |
|---|---|---|
| A retail appointment date | Ships-to-warehouse date, then their own inland transit | Goods must arrive before the appointment, not be produced before it |
| A trade show | Samples in hand well ahead of the stand build date | Stand construction happens in parallel with production |
| A seasonal or peak window | Confirmed slot, booked in advance | The window is when buyers compete for the same lines |
| A distributor’s launch commitment | Two shipment options if possible | Partial arrival beats a single late arrival |
| An internal marketing plan | Approval deadlines added to the factory schedule | The factory’s clock does not include the buyer’s review time |
None of these can be resolved by a faster factory. All of them are resolved by knowing which week you will be in the queue, which is why the four dated milestones below matter more than the single lead-time figure.
Which four dates should appear on your quotation?
Ask for these by name. A supplier who gives you all four is telling you the schedule honestly, including the parts you cannot control.
| Milestone | Who commits to it | What it depends on | Why you need it separately |
|---|---|---|---|
| Physical sample shipped | The factory | Stock availability or existing tooling | Everything downstream sits behind this date |
| Bulk production starts | The factory | Sample approval plus queue position | This is where a slip usually happens, not at production end |
| Production finished | The factory | Run size, colour count, decoration versions | Tells you when inspection and booking begin |
| Estimated sailing | The forwarder or carrier | Booking date and consolidation | Often the longest single leg of the chain |
Add a fifth item if tooling is involved: the date the new mould is ready. New tooling runs about 30 working days at our factory, and that block sits in front of the first sample, not after it. Buyers who discover this after paying a deposit usually assumed sampling was free of tooling time.
When does the lead time actually start?
Not at deposit. The clock starts when three things are closed: the drawing is approved, the Pantone shade is approved where colour is specified, and the artwork files are released for production. Until then, the factory is holding a slot it cannot fill, because it does not know what to make.
This is why your own response time is part of the schedule. If a colour sample takes you a week to approve, you have added a week to production — and the supplier’s quotation will still show the original number, because your approval time was never part of their calculation.
| Event | Does the production clock run | Typical owner of the delay |
|---|---|---|
| Deposit received | No — preparation only | Factory |
| Drawing issued and approved | Partly | Shared |
| Pantone shade approved | Partly | Buyer |
| Artwork released to production | Yes — this is the trigger | Buyer |
| Sample approved | Already running, if stock mould | Buyer |
| Payment received for the production run | Yes | Buyer |
The arithmetic behind those stages is set out in lead time: when does the clock actually start, and the week-by-week breakdown is in cosmetic bottle lead time: where the weeks go.
What happens to lead time in peak season?
Two different things are often called peak season, and conflating them causes bad planning.
The first is demand pressure on the factory. More buyers competing for the same lines, more colour changes competing for the same compounding capacity. Our output is roughly 500,000 bottles a day across the Shenzhen, Huizhou and Guangzhou plants, which is a hard ceiling regardless of how many orders arrive — so a busy week means longer queue, not faster moulding.
The second is pressure on the shipping network: blank sailings, port congestion, and consolidation delays. This stage sits outside the factory entirely and cannot be compressed by anyone in the supply chain, including us.
| Stage | Who controls it | Can a buyer shorten it | How |
|---|---|---|---|
| Tooling | Factory | No | About 30 working days; start earlier |
| Production run | Factory | Marginally | Fewer colours, fewer print versions |
| Queue for a slot | Factory | Yes | Book the slot in advance, pay promptly |
| Booking and consolidation | Forwarder | Partly | Ship LCL or accept a slower consolidation |
| Sailing and transit | Carrier | Yes | Choose sea over air, or air over sea knowingly |
| Customs clearance | Broker and authority | No | Complete documents before arrival |
Incoterm choice is also a schedule lever, not just a cost one. The mechanics of who carries risk at each stage are in EXW, FOB, CIF or DDP: where the risk actually moves.
How should you ask so the answer is a date and not a maybe?
Ask for the answer in a format that cannot be vague. “What is your lead time?” invites “about five weeks”. “Which week do you have production scheduled to start?” invites a date.
It also helps to state your own constraint rather than asking the supplier to guess it. Telling them the date you need gives them something to answer against; leaving it open gives them no reason to prioritise you over another buyer whose deadline is nearer.
| Weak request | Stronger request | Why it changes the answer |
|---|---|---|
| What is your lead time? | Which calendar week can production start? | Forces a date instead of an average |
| Can you do it quickly? | We need goods on the water by a specific date; is that possible? | Makes the real constraint visible |
| Send me samples soon | We need physical samples at our office by a specific date | Makes courier time part of the answer |
| How long is the quote valid? | How long will you hold this price, and what changes it? | Separates price risk from schedule risk |
| How many samples do I get? | How many physical pieces are in the sample run? | Distinguishes a sample set from a production offcut |
How long a quotation stays valid, and why the number moves, is covered in why plastic bottle prices fluctuate. What to send in the first message is in what to put in your first email to a bottle factory.
What are the three mistakes we see most often?
1. Adding your own approval time to the supplier’s lead time in your head, but not in writing. The supplier quotes 30 working days from artwork release. You take three weeks to approve the Pantone match. The factory was right and you were still late. Name your approval deadlines as dates on the schedule.
2. Assuming a fixed launch date can be met by moving faster on the factory side. Lead time is mostly queue, sample cycles and tooling — none of which compress because a buyer is in a hurry. What compresses is your own decision latency, and that is entirely under your control.
3. Booking the freight slot after production finishes. The goods can be finished and still sit for a week waiting for a consolidated booking, which is invisible in any factory lead time. Book the slot against the estimated sailing date, not the production finish date.
What should you put in writing before you approve a schedule?
- The calendar date physical samples are shipped, and the courier method.
- The calendar week bulk production is scheduled to start.
- The calendar date production is expected to finish.
- If tooling is involved, the date the new mould is ready — about 30 working days.
- The estimated sailing date, and which incoterm it assumes.
- Your own approval deadlines as dates: drawing, Pantone shade, artwork, golden sample.
- How many physical sample pieces are included in the sample run.
- How long the quotation price is held, and what would invalidate it.
- What happens to the schedule if you split the order into two shipments.
- Who to contact if production start slips more than a week.
Frequently asked questions
How long does it take to produce bottles after samples are approved?
Ask for it as a start date rather than a duration. The run itself is usually the shortest part of the chain; queue position and your own approvals sit in front of it. A factory quoting only a total figure is hiding which of the two is driving your date.
Can lead time be shortened by paying more?
Rarely in any structural way. What can change is priority on an already-booked slot, which is worth asking about, and freight mode, where air freight trades cost for days. Tooling and colour matching are not purchasable shortcuts.
How far in advance should I book production?
Far enough that the queue is not the constraint. Peak periods fill slots weeks ahead, so an order placed after you need the goods competes against buyers with nearer deadlines. Book the slot when the sample is approved, not when the goods are needed.
Does the lead time include tooling?
Not unless it says so. New moulds take about 30 working days and sit in front of the first sample. A quotation showing a mould fee should show the tooling block separately, otherwise the number is simply incomplete.
What is the difference between production lead time and total lead time?
Production lead time is the run itself. Total lead time is everything around it: tooling, sample rounds, approvals, queue, booking and transit. Only the second number predicts your arrival date, so ask for the second one.
What if my launch date is fixed and the schedule does not fit?
Ask for the closest existing mould in the required capacity, which removes tooling from the equation, and accept a split shipment if partial stock is better than a full miss. Both options are discussed in stock mould versus private mould.
About Shijin Packaging
Shijin Packaging Products Co., Ltd. has manufactured plastic packaging in Shenzhen, Huizhou and Guangzhou since 2003. We hold more than 2,000 existing moulds, run ISO 9001, GRS and SGS audited production, and ship roughly 500,000 bottles a day for cosmetic, personal care, household, car care and food-grade customers. Since we quote model by model, colour by colour and closure by closure, a schedule we give you is tied to a specific production task rather than to a factory average.
Send us your range and your required date: give us the bottle model or capacity, the closure, the number of shades and print versions, and the date you need the goods on the water — we will return four dated milestones plus the tooling block if a new mould is involved.