Paper Cup Production Process Meets Food Safety Standards:

The process of producing paper cups that meet food safety standards is a series of complex stages, requiring precision and strict compliance with food safety regulations, in order to bring safe, quality paper cups to users. Understanding the process of making safe paper cups helps consumers confidently choose and businesses have a sustainable production orientation.

The solution here is not only to create a convenient paper cup, but also to ensure public health and brand reputation. Understanding how to produce safe paper cups and methods of manufacturing food-friendly paper cups is the key to the development of this industry, while meeting the increasing demand for safe and convenient products. Factors such as PO paper materials, PLA paper and a standard paper cup production system play a key role.

The Urgency Of Safe Paper Cups And Standard Production Process:

In the modern consumer era, paper cups have become an indispensable item in daily life, from bustling coffee shops, trendy milk tea shops to corporate offices or community events. Convenience, aesthetics and high customizability have helped paper cups quickly dominate the market. However, along with popularity are increasing concerns about the quality and safety of this product for consumers' health. Cheap paper cups, of unknown origin, produced according to loose processes can potentially pose many risks from toxic chemicals in raw materials, poor quality ink or unsanitary production processes.

According to an informal survey at the end of 2023, more than 60% of consumers surveyed expressed special concern about safety when choosing paper cups, but lacked information to distinguish standard products. This shows an urgent need for transparency in the production process of paper cups that meet food safety standards. A standard process is not only a commitment to product quality but also a foundation for building solid trust in customers and affirming the reputation of the manufacturer. Standards such as ISO 22000, HACCP or specific regulations of the Vietnamese Ministry of Health on food contact materials are important guidelines.

At Ly Giay Viet Nam, we understand that each paper cup delivered to consumers is not just a product but also a peace of mind and trust. Therefore, investing in a paper cup production process that meets advanced food safety standards, with strict control from input materials to final products is our top priority.

Discover the Details of the Food Safety Standard Paper Cup Production Process – From Raw Materials to Finished Products

To create paper cups that are not only beautiful, convenient but more importantly, absolutely safe for the health of users, a strictly controlled production process that complies with international standards is a prerequisite. Vietnam Paper Cups is proud to apply a modern, transparent production process, ensuring that each product is of the highest quality. Let's go into each stage to better understand the technique of making safe paper cups.

The Importance and Core Standards in the Food Safety Paper Cup Production Process

Paper cups come into direct contact with food and beverages, so any negligence in production can lead to the risk of toxic chemical contamination, negatively affecting the health of consumers. Digestive-related diseases, even the risk of cancer in the long term, can originate from the use of substandard products. Therefore, the application of food safety standards is not only a legal responsibility but also a matter of business ethics.

• ISO 22000: This is an international food safety management system, applicable to all organizations in the food chain. A paper cup factory achieving ISO 22000 certification means that they have a comprehensive control system from the selection of raw material suppliers, production processes, hazard control, to storage and distribution. This ensures traceability and effective incident handling. At Ly Giay Viet Nam, we are proud to be one of the pioneers in strictly applying and maintaining the ISO 22000 standard, with the goal of updating the latest version expected in the fourth quarter of 2025 to further improve control measures.
• HACCP Standard : This Hazard Analysis and Critical Control Point system focuses on identifying points in the manufacturing process where food safety hazards (biological, chemical, physical) can occur and establishing control measures to prevent or reduce them to acceptable levels. For paper cup manufacturing, CCPs may include raw material testing, coating process, printing ink, cup sealing temperature and pressure.

• Regulations of the Ministry of Health of Vietnam: National technical regulations (QCVN) related to packaging and paper utensils in direct contact with food (e.g. QCVN 12-1:2011/BYT) set specific limits for the content of heavy metals (lead, cadmium, mercury), toxic substances that can be transmitted into food, as well as microbiological requirements. Compliance with these QCVN is mandatory for all paper cup manufacturing facilities in Vietnam. Vietnam Paper Cup regularly sends samples for testing at reputable centers designated by the Ministry of Health to ensure absolute compliance.

Understanding and applying these standards not only helps Vietnam Paper Cups create safe products but also helps consumers and business partners have a basis for choice and trust. We are committed to constantly updating the latest regulations and technologies to always be at the forefront of the field of food safety paper cup production.

Advanced Material Technology in Safe Paper Cup Production – The Foundation for Superior Quality

The quality of the finished paper cup depends largely on the input materials. A paper cup production process that meets food safety standards begins with the strict selection and control of the main materials: base paper, coating layer and printing ink.

• Background Paper:

  • Selection criteria: Vietnam Paper Cup prioritizes using 100% virgin pulp from sustainably managed forests (FSC – Forest Stewardship Council certification is a big advantage). Virgin pulp ensures that it does not contain impurities, toxic recycled chemicals or residual ink like in regular recycled paper, which is not suitable for food contact.
  • Paper weight: Depending on the purpose of use (hot cup, cold cup, capacity), the paper weight will be different, usually ranging from 170gsm to 350gsm. Higher weight provides better sturdiness for the cup.
    Quality control: Input paper must undergo tests for whiteness, smoothness, tensile strength, absorbency and especially no strange smell. Microbiological indicators are also strictly controlled. Lygiayvietnam.vn cooperates with reputable paper suppliers in the world and in the country, requiring full certificates of origin (CO) and certificates of quality (CQ).

• Coating Layer: The coating layer acts as a waterproof layer, keeping the cup from becoming soft when containing drinks. 

           Polyethylene (PE): This is the most common plastic used to coat paper cups. PE is food-safe and has good waterproofing                     properties. Paper cups can be coated with one layer of PE (inside, for hot drinks) or two layers of PE (both inside and outside, for           cold drinks to prevent condensation on the outside). Vietnamese Paper Cups use virgin PE resin, not recycled plastic for the food           contact layer. The thickness of the PE coating is usually from 10-18 micrometers.

  • Polylactic Acid (PLA):This is a bioplastic derived from plant starch (corn, cassava), which is biodegradable under industrial composting conditions. PLA coated paper cups are a more environmentally friendly solution, meeting the green consumption trend. PLA is also safe for food. It is expected that by mid-2025, Vietnam Paper Cups will increase the production proportion of PLA coated paper cups to 30% of total output to meet market demand for sustainable products.
  • New coatings: Continuous research and development of more advanced water-based coatings that reduce the use of plastic are being focused on and tested by Vietnam Paper Cup for early application.

• Printing Ink:

  • Safety criteria: The ink used on paper cups must be food-safe, free of toxic heavy metals (such as lead, cadmium, mercury, arsenic), free of harmful volatile organic solvents (VOCs), and not smudge or fade when exposed to beverages or heat.
  • Popular ink: Vietnam Paper Cups prioritize using UV ink, which is a solvent-free ink, dries quickly, has good gloss, bright colors, is water-resistant, solvent-resistant, and has good abrasion resistance. UV ink is a relatively mature ink technology, and its pollution emissions are almost zero.
  • Control: Every batch of ink is required to have a safety certificate from the supplier and is periodically tested.

Investment in high-quality raw materials and advanced material technology is a solid stepping stone, ensuring that the food safety standard paper cup production process of Ly Giay Viet Nam always brings superior products.

Detailed Steps In The Production Process Of Paper Cups That Meet Food Safety Standards At Vietnam Paper Cups

After ensuring quality input materials, the paper cup production process at Ly Giay Viet Nam is implemented through modern machinery and strictly controlled stages.

Step 1: Receiving and Checking Input Materials

• Purpose: Ensure 100% of raw materials (paper rolls, PE/PLA resins, printing ink, adhesives) meet the set quality and safety standards before being put into production.
• Procedure:
  1. Check documents: Compare CO, CQ, MSDS, food safety certificates from suppliers.
  2. Sensory inspection: Observe the color, uniformity, detect surface defects (torn, dirty, wrinkled) of the paper roll. Check the viscosity and color of the ink. The plastic particles must be uniform and free of impurities.
  3. Laboratory testing: Paper samples are tested for grammage (GSM), thickness, moisture, tensile strength, bursting strength. Ink samples are tested for pH, solids content. Plastic pellets are tested for melt flow index (MFI). In particular, samples are sent for analysis of food safety indicators such as heavy metal content, organic matter contamination according to regulations of the Ministry of Health or international standards (if there is a special request from the customer).  For example: The base paper must have a grammage range of ±5% compared to the published standard. The lead content in ink must be 90 ppm according to the US CPSIA standard (for reference).
  4. Sample storage: Each batch of qualified raw materials is sampled for comparison and retrieval when needed.
• Standard updated June 2025: It is expected that Vietnam Paper Cup will apply the QR code barcode system for each batch of raw materials, allowing quick and transparent traceability and inspection information right on the production line. At the same time, the frequency of testing microbiological indicators for paper and coating will be increased.

Step 2: Coating PE/PLA on Paper Surface

• Purpose: Creates a waterproof and greaseproof layer for paper, while increasing the durability of the cup.
• Technology: Using modern coating machine (Extrusion Coating Machine).
  1. Large rolls of paper are fed into the machine.
  2. The PE or PLA plastic pellets are melted at high temperatures (around 280°C - 320°C for PE) and extruded through a narrow slot (die) to form a thin plastic film.
  3. This molten plastic film is directly applied to the moving paper surface.
  4. The cooling roller system (chill roll) will quickly cool the plastic layer, helping it adhere firmly to the paper and create a smooth, flat surface.
• Control:
  • Coating Thickness: Controls the uniform thickness across the entire paper surface, typically 12-18 microns (µm) per layer. Thickness is measured using specialized equipment.
  • Adhesion: Test the adhesion of the resin layer to the paper by pull and peel tests.
  • Machine temperature and speed: These parameters are set and monitored closely to ensure coating quality.
  • Corona treatment (if required): The paper surface can be Corona treated before coating to increase the adhesion of the resin.
• For double-sided coated cups (usually for cold cups): Repeat the process for the other side of the paper after the single-sided coated roll has cooled and stabilized.
• Vietnam Paper Cups guarantee: Only use virgin plastic particles, meeting food safety standards. The coating process is carried out in a temperature and humidity controlled environment, minimizing dust and dirt.

Step 3: Print the Pattern on Paper

• Purpose: Create images, logos, and brand messages on the outer surface of paper cups, increasing aesthetics and recognition.
• Printing technology: Vietnam Paper Cup mainly uses Offset printing technology - Sharp image quality, true colors, suitable for complex designs, requiring high detail. However, the cost of zinc plate and machine preparation time is longer.
• Safe Inks: As mentioned, use only UV inks.
• Procedure:
  1. Design and printing: Customers provide design files or Ly Giay Viet Nam supports the design. Then, print plates are made.
  2. Ink mixing: Ink is mixed according to Pantone color code or approved sample, ensuring color consistency between batches.
  3. Plate mounting and alignment: The plate is mounted on the machine, and the parameters of pressure, speed, and ink volume are precisely aligned.
  4. Test print and approve samples: Print a few samples to check the color, sharpness, and image position. Only when the approved samples meet the requirements will mass printing begin.
  5. Drying: The ink is dried immediately after printing using a heat drying or UV drying system.
• Print quality control:
  • Color: Compare with standard color using colorimeter or by naked eye under standard light.
  • Sharpness, color overlap: Check the accuracy of the details, no smudging, color deviation.
  • Ink adhesion: Check the ink does not peel off when rubbed lightly.
  • No strange smell: The printed product must not have a strong ink smell.
• Updated June 2025: Vietnam Paper Cup is researching and investing in digital printing technology for small orders, high customization requirements and fast delivery times, while still ensuring ink safety standards.

Step 4: Die-cutting Paper into Cup Blanks:

• Purpose: Cut the printed paper rolls into flat fan-shaped pieces – this will be the body of the cup later, and small round pieces for the bottom of the cup.
• Technology: Using automatic or semi-automatic die cutting machine.
  1. The printed and coated paper roll is fed into the machine.
  2. Dies with sharp blades designed according to the shape and size of the cup body and bottom will cut the paper.
  3. The cup blanks and cup bottoms are separated from the excess paper (burrs).
• Control:
  • Dimensional accuracy: The cup blanks must have uniform dimensions, in accordance with the technical drawing. The allowable error is very small (usually less than ±0.2mm).
  • Sharp cutting edge: The cut must be neat, without fraying or paper fraying.
  • No paper dust: The die cutting area must be cleaned regularly to prevent paper dust from sticking to the cup blank.
• Note: The excess paper will be collected and can be recycled for non-food purposes, contributing to environmental protection. Vietnam Paper Cup optimizes the stacking to minimize the amount of excess paper.

Step 5: Create the Cup Shape

This is the most important step, turning flat paper blanks into finished cups.

• Technology: Using high speed automatic cup forming machine.
  1. Cup body blank loading: Fan-shaped paper blanks are automatically loaded into the machine.
  2. Cup body welding: The edges of the paper blank are folded and sealed by heat (for PE coated paper) or by ultrasonic waves (newer, cleaner technology, does not require too high temperature, especially effective with PLA coated paper). Vietnam Paper Cup is gradually switching to ultrasonic welding technology for many machine lines.
     Welding temperature for PE is usually around 150°C - 250°C.
  3. Cup mouth shaping: The mouth of the cylindrical cup body is rolled up to create a round, sturdy cup rim, preventing the cup from deforming and creating a comfortable feeling when drinking.
  4. Cup bottom blank loading: Round cup bottom blanks are loaded automatically.
  5. Cup bottom attachment and sealing: The cup bottom is inserted into the bottom of the cup body. The machine will fold the edge of the cup body to hug the bottom of the cup and use heat or ultrasonic waves to seal the bottom. This is a step that requires high precision to ensure that the cup does not leak. automatic loading.
  6. Creating grooves on the bottom of the cup: The bottom of the cup is created with ribs or embossed patterns to increase the hardness and adhesion of the bottom.
  7. Finished Cup Ejection: The finished cup is automatically ejected from the machine and transferred to the inspection conveyor.

• Control during shaping:
  • Welding temperature and pressure: These parameters are continuously monitored and adjusted.
  • Tightness of the weld: The machine usually has a sensor to check the preliminary tightness.
  • Cup size and shape: Make sure the glass is not distorted, the rim is round and the bottom is flat.
  • Cleaning machines: The cup forming machine is cleaned periodically to avoid contamination. The machine's lubricating grease must be food grade.
• Productivity: A modern cup forming machine can produce from 80 to 250 cups per minute, depending on the size and type of cup. Vietnam Paper Cup owns a system of machines from reputable manufacturers, ensuring stable productivity and quality.

Summary Table of Basic Technical Parameters in Paper Cup Production (Reference)

Note: The above figures are for reference only and may change depending on the specific technology and standards of Vietnam Paper Cup at each time.

Step 6: Finished Product Quality Control

This is the key stage to ensure that no defective products are released to the market.

• Visual Inspection:

  • QC staff or automated camera systems inspect 100% of products or large sample proportions for:

    • Shape: Check for deformations, dents, and whether the rim is even.

    • Printing: Color accuracy, image clarity, presence of smudges or scratches.

    • Surface: Cleanliness, absence of dust, grease, or foreign objects.

    • Sealing lines: Ensure side and bottom seals are tight, without gaps or burns.

• Functional Testing:

  • Leak Test: Random sampling according to AQL standards. Fill cups with hot or cold water depending on type and observe over a set time (e.g., 30 minutes to several hours) to detect leaks at the bottom or side seals. Some modern lines use 100% automatic leak detection. Vietnam Paper Cup performs 100% leak testing for premium product lines.

  • Rigidity Test: Assess the cup's strength to ensure it doesn't collapse or soften during use.

  • Dimension Check: Use specialized measuring tools to check actual volume, height, top diameter, and bottom diameter.

• Microbiological Testing:

  • Periodic sampling sent to independent laboratories to test for microbial indicators like total aerobic bacteria, yeast, mold, E. coli, Salmonella, etc.

  • Results must comply with food safety standards (e.g., QCVN 12-1:2011/BYT microbiological limits).

• Sample Retention and Traceability:

  • Each production lot is labeled with lot number and production date, with a retained sample stored. This enables traceability and effective handling of any customer feedback.

• Quality Management System:

  • Vietnam Paper Cup adopts ISO 9001 and ISO 22000 to standardize and optimize all quality control procedures.

Step 7: Packaging and Storage

• Purpose:

  • To protect paper cups from dust, mold, and damage during transport and storage, and to provide clear product information.

• Packaging Process:

  1. Standard-qualified cups are automatically or manually stacked into PE or PLA plastic bags (environmentally friendly option). Each bag typically contains 25 or 50 cups.

  2. Bags are sealed tightly.

  3. Bags are placed into cardboard cartons printed with full product details: product name, quantity, size, manufacturing date, expiry date (typically 2–3 years in proper storage), lot number, usage/storage instructions, and manufacturer info (Vietnam Paper Cup).

  4. Cartons are securely taped and stacked on pallets.

• Storage Conditions:

  • Storage warehouses must be dry, well-ventilated, clean, away from direct sunlight and heat sources.

  • Ideal temperature: 15°C – 25°C.

  • Relative humidity: 40% – 60%.

  • Pest and rodent control programs must be in place.

  • Must not store near chemicals or strong-odored products that may cause cross-contamination.

• FIFO Principle (First In, First Out):

  • Vietnam Paper Cup implements FIFO to ensure product freshness upon delivery to customers.

Vietnam Paper Cup’s Commitment to Safety and Quality

This 7-step closed-loop production process—from raw material selection to final packaging—is carried out with meticulous care and high responsibility by Vietnam Paper Cup. Each stage is closely supervised by experienced engineers and QC specialists, supported by modern machinery systems.

This is our commitment to producing truly food-safe paper cups.

Explore Vietnam Paper Cup’s Safe & Premium Products

Let’s delve deeper into our ranges of food-safe paper cups so you can make the best choice for both your health and your brand. We believe that once you understand our production process and the value it brings, you won’t just want to use our cups — you'll want to be part of a community of conscious consumers who prioritize safety and quality.

What Sets Vietnam Paper Cup Apart

Transparency in every production stage, investment in modern technology, and above all, the heart of dedicated professionals who always put consumer health first. We don't just sell paper cups — we offer safe solutions for your life.

Take Action Now – For Your Health and Sustainable Business Growth!

Leave your information below or contact Vietnam Paper Cup directly via:

• Website: lygiayvietnam.vn

• Hotline: 0988 691 177

• Email: Sales@lygiayvietnam.vn | admin@lygiayvietnam.vn

• Office/Showroom Address: 685 National Highway 1A, Binh Hung Hoa Ward, Binh Tan District, Ho Chi Minh City