Bagasse containers are moulded from the fibre left over after sugarcane is crushed. Restaurants, caterers and food brands choose them to replace foam and plastic takeaway boxes. The failures are easy to foresee: a clamshell that goes soft under a hot curry, a bowl that lets oil soak through, a box that arrives mouldy after weeks in a humid container, or a grease-resistant finish that turns out to rely on a chemistry your market has just restricted.

This guide is for food service chains, delivery brands, caterers and packaging distributors buying moulded bagasse containers from factories in Vietnam, China, Thailand and elsewhere in Asia. It covers the decisions in order: the food and temperature, the grease and water barrier, shape and mould, branding, lids, packing, and the documents to ask for.

💬 Replacing foam or plastic boxes with bagasse? Send us the menu items, the shapes you use now and your target markets, and we will look for moulded-fibre factories in Asia that already make them. Tell us about your containers.

Begin with the food, the temperature and the time

Bagasse performance depends on what is inside, how hot it is and how long it stays there, so describe your food and your service conditions before you compare factories.

Moulded fibre is formed wet in a heated mould and pressed dry. The result is rigid and handles heat well, but fibre absorbs water and oil unless something stops it. A container that is perfect for a dry sandwich can fail with soup.

Give each factory the same brief:

QuestionWhy it matters
What foods go in it (dry, oily, saucy, liquid)?Decides how much water and grease resistance you need
Serving temperature and holding timeA box held in a hot cabinet faces more steam than one eaten at once
Microwave or oven reheating?Not every moulded-fibre product is meant for it; ask what has been tested
Chilled or frozen storage?Condensation on thawing softens fibre
Delivery or eat-in?Delivery needs a secure closure and stacking strength

Ask the factory what tests it has run for each condition, and repeat the important ones yourself on samples with your own food. A product sheet that says “heat resistant” without a temperature, time and food is not a specification.

Grease and water resistance, and the PFAS question

Plain fibre does not stop oil or water, so most bagasse containers carry an additive or coating for that job, and you need to know exactly what it is because some markets now restrict PFAS in food-contact packaging.

Factories achieve oil and water resistance in different ways: additives mixed into the pulp, coatings or films on the surface, or a heavier wall. Historically, some grease-proofing agents used on paper and fibre packaging contained per- and polyfluoroalkyl substances (PFAS). That is changing:

  • In the EU, the packaging regulation (EU) 2025/40 provides that from 12 August 2026 food-contact packaging may not be placed on the market if it contains PFAS at or above set limit values.
  • In the United States, the Food and Drug Administration states that PFAS-containing grease-proofing substances for paper and paperboard are no longer being sold by manufacturers into the US market.

The details, including the limit values and what the FDA says about the related notifications, are set out in our article on food-contact compliance for eco packaging. For sourcing, the practical step is simple: ask every factory to name the oil- and water-resistance agent it uses, to state in writing whether it contains PFAS, and to supply a recent laboratory test of the finished container that supports that statement. Ask what test was run; total fluorine is one of the measures the EU regulation refers to.

A barrier film changes the material

Some containers have a plastic film or plastic coating on the food side for extra liquid resistance. That may make the product “partly plastic” under single-use plastic rules and changes what you can say on the packaging. Ask whether any film or coating is applied, and what it is made of. Our article on single-use plastic rules by market explains why that matters in the EU and Vietnam.

Shapes, moulds and the catalogue

Every bagasse shape needs its own heated mould, so start from the factory’s existing catalogue, and treat a custom shape as a tooling project with its own cost and timeline.

Common shapes include hinged clamshells in several sizes, compartment boxes for meals, round and square bowls, plates, trays, and fibre lids for bowls and cups. Factories usually hold moulds for a range of standard sizes.

RouteWhat you getWhat to agree
Stock shape, plainA container the factory already mouldsExact drawing, weight, colour and test data for that item
Stock shape, your logo embossedThe factory’s shape with a logo insert in the mouldInsert cost, position, depth, who owns the insert
Custom shapeA new mould for your designDrawings, mould ownership, storage, what happens if you move production

If you commission a mould, write down who owns it, where it is kept and how it is released to you. The clauses are the same as for any tooling; our article on tooling and mould ownership agreements lists them.

Weight and wall thickness are part of the spec

Two clamshells that look identical can differ in fibre weight, which changes stiffness, heat behaviour and freight. Ask for the unit weight and a tolerance on the drawing, and weigh samples from each factory before you compare prices.

Logos, colour and printing

Embossing a logo into the mould is the most durable way to brand bagasse; printing directly on moulded fibre is possible but more limited, and sleeves, labels or printed lids are common alternatives.

Moulded fibre has a textured surface that does not take fine print the way smooth board does. Options include:

  • Embossed or debossed logo formed by an insert in the mould. No ink, but it is fixed once the insert is made.
  • Direct printing on the container. Ask what process and inks the factory uses, and test rub resistance with grease and condensation.
  • Printed sleeve, band or label around the container. Easy to change for promotions.

Colour is usually natural (unbleached) or white (bleached). Ask how the factory achieves white and keep that answer with your documents. We do not arrange copies of another company’s logo, character or container design.

💬 Want to compare a stock bagasse shape with your logo against a custom mould? We collect quotations on the same brief from several factories and run the samples for you. Send us your shapes.

Lids and closures

Decide early whether lids will be fibre or clear plastic, because the choice affects leak performance, visibility of the food and how the whole pack is treated under plastic rules.

Bowls and trays are often sold with a separate lid. A moulded-fibre lid keeps the pack fibre-based but hides the food; a clear lid lets customers see the food but is usually plastic. In the EU, food containers of the type listed in the single-use plastics directive are covered when they are made wholly or partly of plastic, so a plastic lid can bring the pack into scope. Test the lid and container as a pair: fit, leaks when tipped, steam under the lid, and stacking in a delivery bag.

For hinged clamshells, test the hinge and the closing tab many times on samples. A hinge that cracks after a few openings, or a tab that will not stay shut on a full box, is far cheaper to catch at sample stage than after delivery.

Moisture and packing for sea freight

Moulded fibre takes up moisture from the air, so packing, carton strength and container conditions matter as much as the product itself on a long, humid voyage.

Agree in writing:

  • inner packing (sleeves or bags) and how many pieces per sleeve
  • carton board grade and stacking strength for your pallet height
  • whether desiccant or container liners will be used
  • the factory’s moisture check before packing

Ask for photos of the packed cartons from the first production lot and check samples on arrival for softening, odour and any mould growth. Containers that have been crushed or have absorbed moisture are hard to sell.

Documents and claims

Ask for food-contact documents and PFAS test data for the exact container, and do not print compostable or biodegradable claims without evidence that meets the rules where the product is sold.

A useful list for each item:

  • material composition: fibre source, additives, any coating or film
  • food-contact declaration or test reports suited to your market
  • PFAS statement and the supporting test report
  • evidence for any environmental claim, such as test reports against a named composting standard or a certification
  • lot traceability from carton to production date

“Compostable” is not a word a factory can make true by printing it. In the EU, the packaging regulation defines compostable packaging by reference to industrially controlled conditions and sets out its own rules for which packaging may be compostable; in the US, the Federal Trade Commission’s Green Guides say a compostable claim should be backed by competent and reliable scientific evidence. Single-use plastic rules by market covers both.

Samples and inspection

Test samples with your own food under your own service conditions, then inspect production against the approved sample for shape, weight, finish and packing.

Run the food test, the delivery test and the reheating test (if you allow reheating) before approving. Our article on sample approval stages explains how to record approvals. At pre-shipment inspection, check dimensions and weight, burrs and rough edges, hinge and closure, cracks, colour, odour and carton counts; the pre-shipment inspection and AQL guide explains sampling levels.

Cups and cutlery often go into the same order: see custom printed paper cups and paper straws and wooden cutlery.

Frequently asked questions

1. Are bagasse containers suitable for hot, oily food?
Many are, but it depends on the grease- and water-resistance agent, the wall weight and the holding time. Ask for test data for your type of food and test samples yourself.

2. How do I know a bagasse container is PFAS-free?
Ask the factory to name its grease-resistance agent, state in writing whether it contains PFAS and supply a recent laboratory test of the finished container that supports the statement.

3. Can I put my logo on bagasse containers?
Yes. Embossing with a mould insert is the most durable method. Direct printing, sleeves and labels are alternatives with different costs and limits.

4. Do I need a new mould for my own shape?
Yes. Each shape needs its own heated mould. Start from the factory’s catalogue of existing shapes, and agree mould ownership in writing if you commission a new one.

5. Can I call bagasse containers compostable?
Only with evidence that meets the rules in your market, such as test reports against a named standard or a certification for the exact product, including any coating.

Summary

Bagasse sourcing turns on your food and service conditions, the grease barrier and its PFAS status, an existing or new mould, and packing that keeps fibre dry in transit. Claims about composting need evidence for the exact container.

Sunsho Trade is a trading company, not a factory. We find and vet moulded-fibre factories in Asia that fit your brief, compare quotations on identical terms, run samples and inspection, and arrange export.

💬 Ready to source bagasse containers? See our eco food packaging service, or send us your shapes and menu and we will come back with factory options.

Sources

Checked on 26 October 2026.