- I. Definitions and Standard Systems for Recyclable and Non-Recyclable Togo Containers
- II. Appearance Feature Differentiation Methods
- III. In-depth Analysis of Material Composition
- IV. Comprehensive Interpretation of Labeling Systems
- V. Guide to Identifying Common Types of Togo Containers
- VI. Regional Differences and the Latest Policy Interpretation
- VII. Summary
With increasing environmental awareness, correctly distinguishing between recyclable and non-recyclable togo containers has become an essential skill. The market offers a wide variety of togo containers, and relying solely on appearance can be misleading. This article provides practical methods for distinguishing between them, based on definitions, standards, appearance characteristics, material composition, and labeling systems, incorporating standards from multiple countries.
I. Definitions and Standard Systems for Recyclable and Non-Recyclable Togo Containers
1.1 Defining Standards for Recyclable Togo Containers
Recyclable togo containers must meet local recycling standards and be accepted into formal recycling systems. Definitions vary across different regions:
United States: Illinois defines "recyclable tableware" as "items designed for single-use containment of beverages, food, or leftovers, and typically accepted by local residential curbside recycling programs." The core principle is "accepted by the local recycling system."
European Union: According to the Packaging and Packaging Waste Regulation (PPWR), effective February 11, 2025, and implemented August 12, 2026, all packaging must be recyclable, capable of large-scale collection, sorting, and recycling, with mandatory requirements officially in place by 2035.
China: Standards are continuously being improved. Shanghai passed the "Shanghai Municipal Regulations on the Management of Disposable Tableware" on July 31, 2025, implemented on September 1, abandoning the "material restriction" approach and adopting "recyclable, easily recyclable, and rapidly degradable" as mandatory technical indicators, shifting towards a focus on actual recycling effectiveness.
1.2 Scope and Classification of Non-Recyclable Togo Containers

Non-recyclable togo containers cover a wide range and are mainly divided into three categories:
Non-recyclable disposable togo containers: Materials that are difficult or costly to recycle, such as polystyrene (PS) foam togo containers, which are "typically not accepted by recycling programs" in the US, and have a "significantly lower recycling rate than other plastics" in Europe.
Togo containers requiring special treatment: Such as biodegradable togo containers. PLA (polylactic acid) containers require industrial composting environments with temperatures above 50°C, high humidity, and specific microorganisms to degrade. In natural environments, the degradation rate is "almost the same as traditional plastics."
Composite material togo containers: Made of multiple materials, such as paper togo containers with PE or PLA coatings. Recyclability depends on the coating material and local standards.
1.3 Global Standard Update Trends for 2025-2026

European Union: The PPWR regulation requires all packaging to be reusable, recyclable, or compostable by 2030, with a 55% recycling rate for plastic packaging and 10% recycled content in plastic food packaging; the proportion of recycled content will increase to 65% by 2040.
China: The national standard for paper tableware, GB/T 27591-2025, will be implemented on December 1, 2025, expanding the covered categories from paper bowls and paper lunch boxes to include paper buckets, cardboard boxes, and other full categories. It requires a biodegradation rate of ≥90% for biodegradable/compostable paper tableware.
United States: California's SB 54 bill (2025) requires 25% recyclability for single-use packaging, and PET and PP materials that meet the standards are exempt from high EPR fees.
Japan: Plans to revise the "Act on Promotion of Effective Utilization of Resources" in 2025, requiring manufacturers to use recycled plastics and set targets, while also strengthening regulations on food contact materials. A revised proposal on the use of recycled materials will be released for public comment in October 2025.
II. Appearance Feature Differentiation Methods
2.1 Color System Identification Rules
Color is an important clue for classifying togo containers; different regions have specific color identifiers:
China: According to the "Classification Marks for Household Waste" (GB/T19095-2019), the recycling bin is blue (CMYK 173b6b), and some recyclable togo containers contain blue elements; green is the color for kitchen waste bins and is not a recyclable color.
European Union: The Green Dot logo is protected by law in over 170 countries. The right arrow is Pantone 343C (dark green), and the left arrow is Pantone 366C (light green), with the right arrow being darker than the left. However, the Green Dot is only a producer responsibility (EPR) financing mark and does not indicate that the product is recyclable.
United States: A blue-green-gray three-color system is used, with blue for recyclables (bottles, plastics, etc.), green for organic materials (food waste, etc.), and gray/beige for other waste. Material Intrinsic Colors: PP togo containers are mostly transparent or translucent; HDPE togo containers are mostly milky white or translucent; PET togo containers are transparent, lightweight, and have a glossy surface; PS togo containers come in transparent hard shells and foam forms.
2.2 Transparency and Texture Characteristics
Transparency and texture are key to distinguishing materials:
Transparency: PET and PS have high transparency, suitable for displaying contents; PP is mostly transparent or translucent, HDPE is mostly milky white or translucent; composite materials or togo containers with added colorants may be opaque.
Texture: PP is soft, tough, and not easily broken, with a crisp tapping sound; PS has high hardness, is easy to mold, and produces a metallic "clinking" sound when tapped; PET is hard, impact-resistant, and has a smooth surface; paper togo containers are thin, breathable, and have a fibrous texture on the surface.
2.3 Special Appearance Design Elements

Brand Innovation: McDonald's uses environmentally friendly Tritan plastic film (BPA-free, 100% recyclable) for its recyclable tableware, with the logo engraved on the bottom of the packaging box; beverage cups use transparent corrugated material.
Shape and Function: Square togo containers have high production volume and low cost, can be compartmentalized, suitable for dishes without soup, but have poor sealing; round togo containers have good sealing, suitable for soups, but are more expensive.
Appearance of New Materials: Sugarcane bagasse togo containers are light brown, solid in texture, and high-temperature resistant; bamboo fiber togo containers are lightweight and have natural antibacterial properties; aluminum foil togo containers are silver, thin, and have good heat retention.
III. In-depth Analysis of Material Composition
3.1 Characteristics and Identification of Recyclable Materials
Understanding the characteristics of recyclable materials is key to differentiation:
- No. 1 PET (Polyethylene terephthalate): Transparent and lightweight, temperature resistant ≤70℃, repeated use may release harmful substances; recyclable into fibers and packaging materials; used in mineral water bottles, salad boxes, etc.; marked with "PET" or a triangle "1" at the bottom, with a smooth surface and a crisp tapping sound.
- No. 2 HDPE (High-density polyethylene): Milky white or translucent, hard texture, good corrosion and chemical resistance, heat resistant to 90-110℃; recyclable into garbage cans and pipes, with a high recycling rate; used in milk bottles, soy sauce bottles, etc. 5. PP (Polypropylene): The only microwave-safe plastic, heat-resistant to 120-140℃, non-toxic and odorless; recyclable into plastic parts, with recycling performance close to virgin material; used for takeout containers and microwaveable togo containers; marked with a triangle "5" and "PP" on the bottom.

3.2 Hazards and Identification of Non-Recyclable Materials
Non-recyclable materials are not only difficult to recycle but may also be harmful to health:
3. PVC (Polyvinyl Chloride): Contains plasticizers, releases vinyl chloride (harmful) at high temperatures, heat resistance ≤80℃, heat distortion temperature 60-70℃; difficult to recycle, high energy consumption, and easily produces toxic substances; used in cheap plastic bags and old takeout containers; heating releases vinyl chloride monomer and plasticizers (potentially carcinogenic).
6. PS (Polystyrene): Divided into transparent hard shell and foamed (EPS), heat resistance 70-90℃, releases styrene at high temperatures (potentially carcinogenic); difficult to degrade, EPS recycling rate is less than 30%; used in foam lunch boxes and instant noodle containers; during recycling, the paper film is difficult to separate, the film is non-biodegradable, and it is difficult to recycle as waste paper.
Others: 4. LDPE (Low-Density Polyethylene) is used for plastic bags and cling film, with poor heat resistance and low recycling value; 7. OTHER (including PC, PLA) needs to be classified according to the specific material.

3.3 Special Properties of Biodegradable Materials
- PLA (Polylactic Acid): Made from corn starch, etc., non-toxic and biodegradable; requires industrial composting environment (above 50℃, high humidity, specific microorganisms) for degradation, slow degradation in natural environment; difficult to enter the traditional recycling system, requires special composting treatment; marked "biodegradable," feels soft/rough to the touch, choose "PFAS-Free" certified products.
- New composite materials: Sugarcane bagasse + bamboo fiber composite material, reducing the felling of 25 trees per ton of paper, decomposes into water and carbon dioxide within 180 days; PLA + PBAT composite material, combining hardness and toughness, temperature resistance 90℃, decomposes in 3-6 months of composting.
3.4 Simple Methods for Material Identification
When professional equipment is unavailable, the following methods can be used for preliminary identification:
Visual method: Check the recycling symbol and material abbreviation at the bottom, observe transparency and color, and look for labels such as "microwaveable" and "biodegradable."
Tactile method: Gently tap the food container; PET and PS produce a crisp sound, while PP produces a dull sound; in a bending test, PP is flexible, while PS is brittle and easily broken; touch the surface, PET and PS are smooth, while paper has a fibrous feel.
Temperature test (use with caution): In a 60℃ warm water test, PET and PS show slight deformation; in a 100℃ boiling water test, PP can withstand the temperature, while other materials deform significantly (this method may damage the food container and should only be used on discarded samples).
IV. Comprehensive Interpretation of Labeling Systems
4.1 Globally Used Resin Identification Code System
The resin identification code is a straightforward material identification tool:

Logo composition: Triangular recycling symbol (three arrows connected end-to-end, representing recyclability), a number from 1-7 in the middle (representing different resins), and often an English abbreviation of the material below.
Meaning of the numbers: No. 1 PET (recyclable, heat resistance ≤70℃); No. 2 HDPE (recyclable, heat resistance 110℃); No. 3 PVC (contains toxins, not recommended for food use); No. 4 LDPE (poor heat resistance, low recycling value); No. 5 PP (microwaveable, heat resistance 130℃); No. 6 PS (poor heat resistance, difficult to recycle); No. 7 OTHER (requires specific analysis).
Misconception: The number only indicates the type of plastic, not directly its recyclability. This needs to be considered in conjunction with local policies. For example, No. 6 PS is theoretically recyclable, but most regions do not accept it.





4.2 Region-Specific Labeling Systems
China: The recyclable material symbol uses a "回" (hui) character design, mainly blue, with counterclockwise double arrows; food contact containers must be labeled "for food contact" (in accordance with GB 4806.7-2023); disposable tableware is marked with a triangular recycling symbol plus "for food use."
European Union: Green Dot symbol (financing symbol); CE certification (compliance with EU directives); from 2025, packaging will require a PPWR compliance mark. USA: Resin Identification Code (established by the American Plastics Industry Association in 1988, adopted by China in 1996); FDA Food Contact Certification (compliant with 21 CFR 174-189, overall migration limit ≤ 60 mg/kg).
4.3 Biodegradability Certification Labels
EU OK Compost Certification: Issued by TÜV Austria, requiring a biodegradation rate of ≥90% within 180 days in an industrial composting environment at 58±2℃, heavy metals compliant with EN 13432, marked with "OK COMPOST" and the certification number.
US BPI Certification: Issued by the Biodegradable Products Institute, compliant with ASTM D6400, marked "BPI Certified Compostable," requires testing by a BPI laboratory, certificate valid for 3 years, and the audit takes 6-8 months.
Japan GreenPla Certification: Promoted by the Japan Bioplastics Association (JBPA), divided into 5 levels of degradation ability, the highest level requires compliance in seawater, soil, and compost, marked with the degradation environment (e.g., "Seawater Degradable").
4.4 Interpretation of Functional Labels
Temperature Labels: Microwave-safe labels often appear with "No. 5 PP"; heat-resistant temperature labels (e.g., "Heat resistant to 120℃"); refrigeration/freezing labels.
Food Safety Labels: "For food contact" (compliant with GB 4806); "BPA-free" (does not contain bisphenol A).
Environmental and Special Function Labels: "Biodegradable," "100% Recyclable"; leak-proof label; easy-open label; degradation condition description.





V. Guide to Identifying Common Types of Togo Containers
5.1 Materials and Identification of Takeaway Togo Containers
| Container Type | Main Material | Recyclability | Heat Resistance | Identification Points |
| Square Rice Box | PP (No. 5) | ✓ Recyclable | 120-140℃ | Marked "5" PP at the bottom, with microwave-safe symbol |
| Round Soup Container | PP/PS | Partially Recyclable | PP:120℃ PS:70-90℃ | Round design, good sealing |
| Compartmental Box | PP | ✓ Recyclable | 120℃ | Multi-compartment design, suitable for side dishes |
| Transparent Box | PET/PS | PET is recyclable, and PS is difficult to recycle | ≤70℃ | High transparency, suitable for salads |
| Paper Food Box | Paper + PE/PLA coating | PE is difficult to recycle, and PLA is biodegradable | PE:80℃ PLA:60℃ | Paper appearance, with waterproof coating |
Identification Tips: Check the bottom markings, prioritize "No. 5 PP"; observe the color, transparent containers require material confirmation; test the sealing, round containers are suitable for soups; check the coating, PLA coating is more environmentally friendly.

5.2 Characteristics of togo containers from Fast Food Chains
McDonald's: Uses polylactic acid (PLA) and paper materials, reducing petroleum-based plastics by over 5800 tons annually; tableware uses Tritan (BPA-free, 100% recyclable); McDonald's Switzerland uses 97% paper packaging, without PFAS coating.
KFC/Pizza Hut: Primarily uses paper packaging, some use recyclable plastics, focusing on functionality and brand recognition.
Subway: Uses coated kraft paper from Beihai Enso factory in Guangxi, with the toughness of kraft paper and the printing effect of white cardboard, portable and practical.
5.3 Material Requirements for Microwaveable Togo Containers
Microwaveable materials: Look for the "No. 5 PP" symbol, marked "microwave safe"; the lid may be PS/PET, which needs to be removed before heating; choose food-grade PP that complies with GB 4806.
Non-microwaveable materials: PS has poor heat resistance and easily deforms and releases harmful substances when heated; PET has a temperature resistance of ≤70℃ and releases plasticizers at high temperatures; PVC releases vinyl chloride when heated; metals (such as aluminum foil) are strictly prohibited from being microwaved.
5.4 Characteristics of Fresh Food Packaging Boxes
Material analysis: PET has extremely high transparency and strong hardness, suitable for long-term storage, and is heat resistant up to ≤60℃; PS has high transparency, high hardness, and low cost, but poor heat resistance; PP is transparent or semi-transparent and has good toughness.
Identification points: PET has the highest transparency, followed by PS, and PP is mostly semi-transparent; PET and PS are hard, while PP is softer; check the bottom label and pay attention to the usage temperature (not resistant to high temperatures).
5.5 Identification of New Environmentally Friendly Togo Containers
Sugarcane bagasse togo containers: Light brown, with plant fiber texture, solid texture, high temperature resistance, and completely decomposes within 180 days.
Bamboo fiber togo containers: Natural bamboo color, with bamboo texture and smell, lightweight and durable, naturally antibacterial, and degrades in 1-2 years.
Aluminum foil togo containers: Silver metallic luster, thin and lightweight, good heat preservation, can be heated over an open flame, 100% recyclable, can be recycled more than 25 times, and the recycling energy consumption is 5% of that of primary aluminum production.
PLA biodegradable togo containers: Mostly transparent or semi-transparent, labeled "biodegradable" or "compostable," and feel relatively soft.
VI. Regional Differences and the Latest Policy Interpretation
6.1 Standards and Practices in the Chinese Market

Shanghai Model: The "Shanghai Municipal Regulations on the Management of Disposable Tableware" prioritizes "recyclable and easily recyclable" products, and non-compliant "biodegradable" products are not recognized; it introduces CEPI and 4evergreen evaluation standards to make "recyclability" testable; and establishes the "Zero-Carbon Circular Paper Cup Pioneer Alliance" to build a complete closed-loop industrial chain.
National Standards: GB/T 27591-2025 paper tableware standard expands product categories, requiring biodegradable/compostable products to have a biodegradation rate of ≥90% and a disintegration rate of ≥90%, adding 9 heavy metal tests, and reducing the lead limit from ≤10.0 mg/kg to ≤5.0 mg/kg. Local Policies: Various regions are implementing upgraded versions of "plastic restriction orders," limiting non-biodegradable togo containers; establishing catalogs of low-value recyclable materials is becoming a trend.
6.2 The Far-Reaching Impact of the EU PPWR Regulation
Core Requirements: From January 2030, all packaging must be reusable, recyclable, or compostable, with a 55% recycling rate for plastic packaging; plastic food packaging must contain 10% recycled content by 2030, increasing to 65% by 2040; a three-tiered recyclability rating system (A, B, C) will be established, requiring A/B/C rating by 2030 and A/B rating by 2038.
Impact on Chinese Exports: togo containers exported to the EU must comply with PPWR regulations, provide recyclability verification data, and pass strict environmental testing; otherwise, they will be prohibited from entering the EU market.
6.3 Differentiated Standards in US States
Federal Level: The FDA regulates food contact materials through 21 CFR 174-189, with overall migration limits ≤60mg/kg or 10mg/dm², vinyl chloride monomer ≤0.01ppm, and a ban on bisphenol A in infant food packaging.
State-Level Regulations: California's SB 54 bill (2025) requires 25% recyclability for single-use packaging; New York State bans polystyrene foam togo containers; Illinois defines "recyclable tableware" as items accepted by local recycling systems.
Recycling Differences: States have different recycling policies for #6 PS, and the capacity of recycling facilities affects the recyclability of togo containers.
6.4 Japan's Refined Management Model
Legal Framework: The core laws include the "Basic Law for the Promotion of a Circular Society," the "Energy Conservation and Recycling Promotion Law," and the "Packaging Recycling Law." The "Law for the Promotion of Effective Resource Utilization" will be revised in 2025, requiring manufacturers to use recycled plastics and set targets.
Classification Practices: Each household has a waste classification chart, categorizing waste into more than ten categories; waste is collected at scheduled times (e.g., combustible waste on Monday/Wednesday/Friday); translucent garbage bags are used for easier monitoring.
VII. Summary
Correctly distinguishing between recyclable and ordinary togo containers is fundamental to promoting a circular economy. The key points are: material is fundamental (PP #5, PET #1, and HDPE #2 are the main recyclable materials), labeling is crucial (the triangular recycling symbol needs to be interpreted in conjunction with local policies), regional differences exist (recycling standards vary across different countries/regions), and misconceptions must be avoided ("biodegradable ≠ recyclable," "having a symbol ≠ recyclable").