Performs like plastic.
Returns like a leaf.
ESR Biomaterials makes certified-compostable, zero-petroleum bio-composite resins — a true drop-in replacement for the fossil plastics in single-serve food, beverage, and pharmaceutical packaging.
Sustainability used to cost you something.
Every green material before this one asked packaging to give something up — strength, shelf life, line speed, or margin. ESR resins give up none of it.
Engineered from renewable biomass and natural coffee-chaff fillers, they run on the same injection, thermoforming, film-blowing, and extrusion lines you use today — then end their life in soil, not in a landfill or an ocean.
Fifteen properties. Four standards. One material.
We don't ask you to choose between doing right and performing well. Here is exactly what the resin delivers — and the standard that backs each claim.
100% Compostable
Breaks down fully in commercial composting — no persistent residue, no toxins left behind.
ASTM D6400 · EN 13432Zero Microplastic
Bio-based polymers biodegrade completely — they never fragment into persistent microplastics.
No fragment residueZero Petroleum
Not a fossil polymer with additives — built from renewable biomass from the ground up.
100% fossil-free feedstockFood-Contact Safe
Authorised for direct food contact across North American and European frameworks.
FDA 21 CFR · EU 10/2011Heat Resistance
Holds form and function through hot-fill and elevated-temperature service without deforming.
Hot-fill readyCold & Freezer Stable
Stays tough and impact-resistant at refrigeration and freezer temperatures.
Sub-zero performanceOxygen Barrier
Restricts oxygen ingress to protect flavour, freshness, and product shelf life.
O₂ barrier gradeWater-Vapor Barrier
Controls moisture transmission to keep dry and sensitive contents stable.
Low WVTRDrop-In Replacement
Swaps 1:1 for incumbent resins — no new tooling, no new machines, no requalifying the line.
Same molds · same speedsInjection Grade
Formulated for high-throughput injection molding of cups, closures, and rigid containers.
ESR 3.7S / 8.1-5 seriesThermoform Grade
Sheet-ready grades for trays, lids, blisters, and portion packs.
HMS-TFF-M seriesFilm-Blowing Grade
High-melt-strength grades for compostable films, liners, and flexible wraps.
THERM-COMP seriesCircular by Design
From biomass to package to compost to soil — a closed loop, not a landfill line.
Land · brand · land32 Biomass Feedstocks
A diversified, regenerative feedstock base — resilient supply, not a single monoculture.
32 renewable inputsNegative Carbon
Biocarbon grades sequester more carbon than they emit, cradle-to-gate.
Down to −1.07 kg CO₂e/kg*ESG-Ready Proof
Third-party certifications and LCA data your sustainability team can report with confidence.
Documented & auditableBuilt for single-serve.
Single-serve is where plastic does the most damage and disappears the fastest — the highest-volume, lowest-recovery format on the shelf. It's exactly where a compostable drop-in matters most.
Single-serve food
- Yogurt & dairy cups
- Dessert & snack pots
- Portion & condiment packs
- Trays, lids & closures
Single-serve beverage
- Cold cups & domes
- Coffee capsules & pods
- Bottle caps & components
- Stirrers & straws
Pharma & health
- Blister packs & unit-dose
- Pill bottles & closures
- Device & sample packaging
- Barrier-critical containers
A material that comes back.
Conventional single-serve plastic travels one way: oil well to shelf to landfill. ESR resin travels in a circle. Renewable biomass becomes resin, resin becomes packaging, and packaging composts back into the soil that grows the next harvest.
*Representative biocarbon LCA figure of −1.07 kg CO₂e per kg, cradle-to-gate. Grade-specific values available on request.
Drop-in means drop-in.
The switch that usually means new capital, new tooling, and months of requalification is, here, a change of pellet. Everything downstream stays exactly as it is.
Fossil resin
- Petroleum-derived polymer
- Persists for centuries
- Sheds microplastics
- Positive carbon load
- Landfill or downcycle
ESR bio-composite
- Same molds & machines
- Same cycle times & specs
- Certified compostable end-of-life
- Negative carbon footprint
- Returns to soil
Take the plastic out of your single-serve.
Send us your format and incumbent resin. We'll match a grade, share the technical and compostability data, and get samples on your line.