Sainsun Packaging

Key Takeaways

Sourcing Flexible Packaging Here

  • Six product lines — retort, microwave, food, roll film, pet food and coffee — all made in our own factory in Huizhou on 10 production lines with 100+ workers.
  • Standard MOQ is 100–500 pcs per design; functional structures such as retort and spouted pouches start at 5,000 pcs.
  • BRCGS Issue 7 (Grade B), FDA 21 CFR and EU 10/2011 documentation comes as standard with every order.
  • Printed samples take 5–7 days; stock samples are free apart from freight.

Choosing

How to Pick the Right Product Line

Start with the product, not the bag. A shelf-stable sterilized meal points to retort; a frozen dumpling points to microwave venting; dry snacks and powders point to stand-up or flat-bottom pouches; liquids point to spouted pouches; high-volume automatic filling points to roll film.

If the same product could suit two formats, the deciding factors are usually shelf presence, filling equipment and volume. Our product pages carry the detail — structures, closures, MOQ and FAQ for each line.

Every line shares the same factory, quality system and documentation set, so mixing formats in one order and one shipment is normal for us — not an exception.

FAQ

Sourcing — Common Questions

What is the MOQ across product lines?

Standard pouches: 100–500 pcs per design. Functional structures — retort, spouted and microwave venting bags: 5,000 pcs per design. Several designs or products can share one order and one shipment.

Can I combine different bag types in one shipment?

Yes. Mixing retort, stand-up and film in one order is normal for us — one factory, one documentation set, one shipment.

Do you provide food-contact documentation?

Every order ships with the applicable reports: FDA 21 CFR and EU 10/2011 test reports, produced under our BRCGS Issue 7 (Grade B) system. Full reports are available on request.

How do samples work?

Stock samples are free apart from freight. Printed samples to your artwork take 5–7 days at US$120 for 1–2 pieces, with the print film fee waived.

Where is the factory?

In Shenzhen, China. Visitors are welcome — a factory tour is the fastest way to see the lines, the lab and the warehouse before your first order.

Ordering

Ordering From Outside China

Most of our customers order from outside China, so the process is built for distance: specifications by email, samples by courier, proofs by PDF, and a fixed contact person from first enquiry to shipped order.

Quotations include the structure proposal, not just a price — so you can compare options on barrier, MOQ and unit cost at once. Once artwork is approved, production runs on our own 10 lines, and inspection happens in-house before anything is packed.

Payment, shipping terms and lead time are confirmed in writing with every order. If you are importing packaged goods for the first time, tell us — we will walk you through the documents your customs broker will need.

Capabilities

One Factory, One Standard

Production

10 production lines and 100+ workers — printing through bag-making under one roof.

Quality

BRCGS Issue 7 (Grade B) system; in-line and final inspection on every order.

Compliance

FDA 21 CFR and EU 10/2011 reports supplied with food-contact structures.

Lab

Seal strength, barrier and boil testing on site before production.

Export

9 years of export experience and the documentation your broker expects.

Support

A named contact from quotation to delivery — no ticket queues.

Next

Where to Start

If you know the product you are packing, start at its product page — each one carries the formats, structures and FAQ for that line. If you are earlier than that, send us the product and we will point you to the right line.

The fastest route for most buyers is a short email with three facts: the product, the fill weight, and the market it will sell in. From there we can usually propose a structure and an indicative price within one working day.

Printing

How Print Method and Volume Shape Your Quote

The same design can be produced two very different ways. Which one fits depends less on taste than on run size, how often your artwork changes, and how fast you need the first batch.

Digital printingRotogravure printing
Set-up costNone — artwork goes straight to pressEngraved cylinders, one-off per design, reused on reorders
Practical volume band100–500 pieces and up — small runs and launch batchesHigher volumes where unit cost matters most
Artwork changesCheap — reprint with a new file anytimeCylinder re-engraving for changed elements
ColorsFull-color, photographic designsUp to 10 spot colors, Pantone-matched
Second runsSame as first runCheaper and faster — cylinders already exist
Best forLaunches, seasonal SKUs, testing formatsEstablished SKUs with stable artwork

Both paths ship from the same lines with the same certifications. Most brands start digital and graduate to gravure as volumes stabilize.

Deciding

From Product to Format in Four Questions

If you are not sure which product line fits, four questions narrow it fast: what the product weighs, whether it is liquid or dry, how it will be filled (machine or co-packer), and how long it needs to stay fresh on the shelf. The answers point to a line — and each line page below carries the formats, structures and FAQ for that application.

When two lines could both work, we say so and quote both. A structure proposal costs nothing, and a physical sample settles what a spec sheet cannot.

FAQ

Choosing a Product Line

What is the minimum order quantity?

For digitally printed stock-size pouches, MOQ starts at 100–500 pieces depending on format and size. Functional packs — retort grades, microwave constructions, spouted pouches — start around 5,000 pieces because structure validation and fitment application are batch processes.

Can I get samples before committing to a design?

Yes. Stock-structure samples are free — you cover the courier only. Fully customized prototype samples with your structure and print are US$120 for 1–2 pieces, typically ready in 5–7 days and credited against the production order.

Do you help choose the structure, or only print my design?

Choosing the structure is most of the work. Send the product, fill weight and target market, and we propose the barrier structure, format and closures — with the food-contact documentation for your market included in the quotation.

Content last reviewed: September 2026

Related guides

Low MOQ Customized Pouches: How to Test a Market Without OverheadRealistic minimums per format, digital vs gravure print, and what first runs cost.Pouch Format Comparison: Stand-Up, Flat-Bottom, Side-Gusset, SpoutShelf presence, fill weight, pallet efficiency and cost for each pouch format.How to Vet a Pouch Manufacturer Before You CommitThe twelve questions that separate a factory from a trading floor.