Plant-Fiber Fiber Clamshell Containers — Why the Material Matters
Sugarcane bagasse is the agricultural by-product left over after juice extraction — burning it pollutes, landfilling it wastes biomass, but molding it into food packaging captures that material as a renewable input. That is the body of these fiber clamshell containers. The interior is lined with a thin PLA bioplastic film — itself plant-based, made from corn or sugarcane starch — to provide a grease and liquid barrier without resorting to PFAS chemistry. The result is a foodservice container that does not compromise on heat, structure, or end-of-life recovery.
Standard capacity in a 8.0 × 8.0 × 3.0 in footprint — designed to hold an entrée portion, a sandwich plus garnish, a saucy side, or a parfait. Cases of 300 stack tightly in the back of house and travel cleanly in delivery bags.
Where this container earns its place on the line
- Bakeries and delis — pastries, sandwiches, grab-and-go assemblies.
- Meal-prep and ready-meal brands — freezer safe; meal-prep ready.
- K-12 cafeterias and university dining — meets PFAS-free procurement requirements many state school systems now mandate.
- Quick-service restaurants and cafes — single-portion entrées, sides, salads, fruit cups, parfaits.
- Hospital and senior-living foodservice — microwave-safe so kitchen staff can plate, deliver, and reheat in the same container.
- Hotels and corporate dining — clean visual presentation for breakfast assemblies, mid-meeting service, lunch buffets.
Five problems this SKU is engineered against
1. Foam container bans without a true replacement
Polystyrene foam was the workhorse of school cafeterias and quick-service venues for decades. Foam is now banned or restricted in 11 U.S. states and over 250 municipalities. Most “alternatives” are PE-coated paperboard (still plastic, still not compostable) or thicker plastic (still landfill). A plant-based compostable container is the only fully sustainable substitute that survives hot food.
2. Plastic-in-the-microwave concerns
Foodservice teams reheating prepared meals don’t want plastic film against hot food. This container is microwave-safe at reheat temperatures and plant-based PLA replaces conventional PE film for the grease barrier.
3. Soak-through on saucy or wet menu items
The PLA film on the inside surface stops liquid migration so the bottom stays dry through service, transport, and reheat — for sauced pasta, curries, BBQ, dressed salads, and stew.
4. PFAS food-packaging laws tightening every year
California AB 1200, AB 1201, New York’s Hazardous Packaging Act, and parallel laws in Washington, Colorado, Maryland, Minnesota, Connecticut, Rhode Island, Vermont, and Hawaii ban intentionally added PFAS in food packaging. These do not contain added PFAS at any stage of manufacture.
5. Procurement asking for documentation
Buyers with sustainability mandates need certificates: USDA Biobased, ASTM D-6400, FDA food contact, NSF Certified Compostable, TÜV AUSTRIA. All applicable certifications are listed below; lab/cert documents are available on request for B2B accounts.
Build, materials, and operator features
- No added PFAS — meets every U.S. state PFAS food-packaging law as of 2026.
- PLA bioplastic lining — plant-based film bonded to the food contact surface for grease and liquid barrier.
- Unbleached plant fiber body — denser than coated paperboard; holds shape under heavy or saucy meals.
- Hot food safe to 200°F — soups, stews, hot pastas, curries, casseroles, baked dishes.
- Microwave safe at reheat temperatures — reheat without transferring.
- Freezer safe — does not embrittle below 0°F; meal-prep ready.
- Liquid and grease resistant — PLA film barrier on top of naturally oil-resistant fiber.
- Composts in 2–4 months in a commercial composting facility (industrial compostable).
- Case of 300 — sized for catering, school dining, and operator-scale foodservice.
- Gluten-free and allergen-friendly material.
- Unbleached natural fiber color — pairs with any branded sticker, ribbon, or sleeve.
Compliance, compostability, and food-contact certificates
- OK compost INDUSTRIAL (TÜV AUSTRIA) — disintegrates and biodegrades in a commercial composting facility within 12 weeks.
- USDA Certified Biobased Product (U.S. Department of Agriculture) — verified renewable plant content; eligible under federal BioPreferred procurement programs.
- ASTM D-6400 (ASTM International) — meets the U.S. industry standard for industrial compostability.
- FDA Food Contact Compliant (U.S. Food and Drug Administration) — conforms to U.S. Code of Federal Regulations for direct food contact.
- NSF Certified Compostable (NSF International) — independent third-party verification of compostability claims.
Product specifications
| Outer dimensions | 8.0 × 8.0 × 3.0 in (20.3 × 20.3 × 7.6 cm) |
|---|---|
| Material | Plant fiber, with PLA bioplastic lining |
| Color | Natural Fiber |
| Heat tolerance | Up to 200°F |
| Microwave / freezer | Both safe |
| PFAS status | No added PFAS |
| Lining | PLA bioplastic film |
| Compost timeframe | 2–4 months (commercial); industrial compostable only |
| Quantity per case | 300 |
| Cases per pallet | 28 (8,400 units per pallet) |
| Case weight | 28.9 lbs |
| SKU | SYR-FCS-300 |
Frequently asked questions
What is the maximum hot-food temperature for this fiber clamshell container?
Yes. The body is rated for hot food up to 200°F. The PLA lining is stable up to that temperature in food contact. Hot pastas, curries, soups (with a lid), stews, and baked entrées hold without warping.
Can I home compost the PLA-lined fiber clamshell container?
No. PLA bioplastic requires the higher temperatures and microbial activity of a commercial composting facility (ASTM D-6400 / TÜV AUSTRIA OK compost INDUSTRIAL conditions). It will not break down meaningfully in a backyard compost pile. For home-compostable options, choose the unlined fiber version.
Which state PFAS food-packaging laws do these fiber clamshell containers satisfy?
Yes. Because no PFAS is intentionally added, they comply with California AB 1200 / AB 1201, New York’s Hazardous Packaging Act, and parallel laws in Washington, Colorado, Maryland, Minnesota, Connecticut, Rhode Island, Vermont, and Hawaii. Lab test reports are available for B2B accounts on request.
Which lids fit this fiber clamshell container?
Three lid options typically fit foodservice containers in this size range: clear PLA dome lids for visible merchandising of salads, parfaits, and bakery; clear PLA flat lids for stackable delivery; and matching plant-fiber lids for opaque, plant-based compostable closure. Lids are sold separately by the case — pair by capacity and footprint.
How long does the fiber clamshell container take to compost?
In a commercial composting facility (ASTM D-6400 conditions), it breaks down in 2 to 4 months. This product is industrial compostable only — it will not meaningfully break down in a backyard compost pile.
What are the exact dimensions of this fiber clamshell container?
Outer dimensions are 8.0 × 8.0 × 3.0 in (20.3 × 20.3 × 7.6 cm). This footprint fits standard takeout bags, hot bags, delivery cubes, and most foodservice tray slots. Stack height in storage scales linearly with case quantity and shape.
Will the fiber clamshell container survive reheating in the microwave on the line?
Yes, the fiber clamshell container is microwave safe at reheat temperatures. Reheat without transferring to another plate. Avoid using in conventional ovens above the rated heat tolerance or under broilers.
Can these fiber clamshell containers be used in school cafeterias under sustainable-procurement rules?
Yes. They meet PFAS-free, biobased, and compostable procurement requirements many state school systems now mandate: no added PFAS, TÜV AUSTRIA OK compost INDUSTRIAL, USDA Biobased, ASTM D-6400, NSF Certified Compostable. Documentation is available on request.
How do I confirm the PFAS-free claim on these fiber clamshell containers?
Yes. No PFAS chemicals are added at any stage of manufacturing. The grease and liquid barrier is the PLA bioplastic film plus naturally oil-resistant fiber, not PFAS chemistry. They meet PFAS-restriction laws in California, New York, Washington, Colorado, Maryland, Minnesota, Connecticut, Rhode Island, Vermont, Hawaii, and other states banning intentionally-added PFAS in food packaging. Lab test reports are available on request for B2B accounts.
