1. What Are STEB Bags?
STEB bags (Security Tamper-Evident Bags) are specialized security packaging solutions designed to detect and deter unauthorized access during the transport, handling, and storage of high-value or sensitive items. These bags feature tamper-evident seals, such as VOID tapes, hot-melt adhesive closures, and irreversible security indicators, which clearly display signs of interference when breached.
Originally introduced by the International Civil Aviation Organization (ICAO) to secure duty-free liquids at airport checkpoints, STEB bags have since expanded into multiple industries:
- Airports & Travel Retail: To seal duty-free liquids purchased post-security, allowing passengers to transit or connect flights while complying with liquid regulations.
- Banking & Cash Handling: For secure transport of cash, coins, and financial documents between branches and cash centers.
- Law Enforcement & Legal: For evidence preservation in police operations and judicial processes.
- Healthcare & Pharmaceuticals: For safe, tamper-evident transport of drugs, blood samples, or controlled substances.
- Elections & Education: To protect ballots, examination papers, and sealed test materials.
Each STEB bag typically includes customizable print areas, unique barcodes or serial numbers, and multi-level security features for added traceability and regulatory compliance. They are available in various sizes, materials (LDPE, co-extruded film), and levels of opacity to suit specific logistics or privacy requirements.
2. Why STEB Bags Matter
In today’s globalized and security-conscious environment, the protection of high-value and sensitive goods during transport is more important than ever. Whether you’re operating in international airports, government agencies, or financial institutions, even a minor breach in package integrity can result in regulatory penalties, loss of trust, or legal complications.
STEB bags (Security Tamper Evident Bags) offer a proactive solution to these challenges by:
✅ Preventing unauthorized access – Their one-time-use tamper-evident seals make it impossible to open and reseal the bag without visible signs.
✅ Providing visible evidence of tampering – Security features like VOID messages, serial numbers, or color-changing indicators immediately reveal interference attempts.
✅ Ensuring compliance with international aviation and safety standards – Including ICAO (International Civil Aviation Organization) and TSA (Transportation Security Administration) protocols for duty-free goods and secure packaging.
✅ Supporting chain-of-custody documentation – Each STEB bag can be uniquely barcoded or serialized, which simplifies tracking, logging, and auditing in high-risk logistics.
✅ Protecting brand integrity and customer trust – By using professional, compliant packaging, businesses reinforce their commitment to safety and transparency.
From air travel retail and law enforcement evidence storage to clinical trials and bank cash transfer, STEB bags provide the peace of mind and accountability that B2B operations demand. Their growing adoption across regulated industries highlights their role as a critical component in modern supply chain risk management.or pharmaceuticals, STEB bags play a vital role in protecting what matters most.
3. Types of STEB Bags
| Security Level | Description | Common Applications |
|---|---|---|
| Level I – Basic | Entry-level tamper evident security bags with single-use tape; no serial number, barcode, or covert layer. | Used in low-risk airport duty free shops, short-haul flights, or for simple document transport. |
| Level II – Enhanced Tape | Adds stronger adhesive and VOID pattern, but lacks serialization or print elements. | For internal logistics, training flights, or controlled environments where risk is minimal. |
| Level III – Printed | Custom tamper proof bags with printed warning text, one-time tamper seal, barcode, and sequential numbering for traceability. | Ideal for duty free retail, customs, immigration, and sealed retail product handovers. |
| Level IV – Covert Print | Adds invisible security ink (UV/IR), authentication microtext, and tear-proof materials for added anti-forgery capabilities. | Used in judicial document transfer, law firms, and corporate evidence handling. |
| Level V – High Spec | Highest-grade duty free STEB bags: includes dual-layer VOID tape, serialization, barcode, QR code, UV ink, and anti-residue adhesive. | Best suited for pharmaceuticals, bank cash handling, election materials, and police evidence. |
💡 Tips for B2B Buyers:
Selecting the right STEB bag level depends on your risk tolerance, transport environment, and compliance requirements. Level V custom tamper proof bags offer multilayered protection but come with higher cost—ideal for high-stakes industries. For duty free operations, Level III is widely accepted under ICAO guidelines.
4. How Are STEB Bags Made?
The manufacturing of STEB bags (Security Tamper Evident Bags) is a sophisticated process that ensures product integrity, compliance, and traceability across international transit networks. Each bag is engineered for durability and tamper-resistance, making them an essential part of secure logistics.
Step-by-Step Overview:
Final Packaging & Traceability Log:
All tamper evident packaging is logged with unique production IDs, allowing full chain-of-custody audits for government, airports, and banking institutions.
Material Selection:
Manufacturers choose between HDPE, LDPE, or co-extruded multilayer films depending on the strength, opacity, and environmental resistance needed. Most duty free STEB bags use transparent co-extruded film with anti-tear properties.
Printing & Branding:
Custom printing includes company logos, barcodes, QR codes, sequential serial numbers, and ICAO/airport-specific identifiers. This enhances traceability and brand visibility for travel retail and customs.
Security Seal Application:
Tamper-evident sealing features such as VOID tape, destructible adhesives, or heat-sensitive ink are applied at the opening. For custom tamper proof bags, seals are often irreversible and leave visible evidence if breached.
Data Encoding (Optional):
Advanced bags may integrate RFID/NFC chips or UV-printed microtext to facilitate digital authentication or baggage reconciliation systems.
Quality Assurance & Compliance:
Every batch undergoes rigorous lab testing to verify:
Seal strength and break force
UV/IR ink visibility under scanners
Tamper response in high/low temperature
Moisture, pressure, and drop resistance
5. Who Uses STEB Bags?
STEB bags are relied upon globally by organizations that require strict control over high-value, sensitive, or regulated items. Their tamper-evident features, combined with traceable identifiers, make them indispensable across multiple sectors:
- Airports & Duty-Free Retailers
These are the original users of STEB bags, especially for carrying tax-free liquids on international flights. Passengers must pack their LAGs (liquids, aerosols, and gels) in ICAO-compliant bags to pass through security. What is a duty free bag offers a full explanation of how these bags work and why they matter.
To explore our custom manufacturing options for ICAO-certified duty free STEB bags, visit our product page. - Banks, CIT & Cash Handlers
In banking and secure logistics, tamper-evident bags are used for cash deposits, ATM cassette transfers, and inter-branch movements. These organizations require high-spec Level V STEB bags with serial numbers and UV ink to prevent unauthorized access and manipulation. - Law Enforcement & Legal Authorities
For criminal investigations, chain-of-custody is crucial. Custom tamper proof bags designed for police and forensic teams ensure that evidence remains untouched between collection and courtroom presentation. - Pharmaceutical Distributors & Hospitals
STEB bags are used to transport clinical trial samples, controlled drugs, and temperature-sensitive medications. Their traceability helps maintain regulatory compliance with ISO and FDA standards. - Luxury & Fashion Brands
High-end goods like watches, perfumes, and jewelry are increasingly shipped using duty free STEB bags or similar tamper-evident packaging. These prevent loss, counterfeiting, or unauthorized repackaging in transit. - Government Agencies & Election Commissions
From sealed ballots to confidential records, many government units adopt STEB-compliant bags to meet audit, compliance, and transparency standards.
6. Key Features of STEB Bags
| Feature | Function | Benefit |
|---|---|---|
| Tamper-Evident Closure | VOID text, destructible adhesive, or irreversible seal changes upon tampering | Immediate visual alert of unauthorized access |
| Serialized Barcode / QR Code | Each bag has a unique, scannable identity linked to digital records | Enables secure tracking and prevents substitution or fraud |
| Reinforced Side Welds | Heat-sealed edges to enhance structural strength | Prevents edge-tearing or forced opening attempts |
| Writable Information Panel | White patch for handwriting seal ID, time, contents, etc. | Supports audit trails and chain-of-custody documentation |
| Custom Size & Print Options | OEM/ODM sizing, branding, or language support | Enhances brand recognition and improves operational fit |
| ICAO Compliance Markings | Printed compliance icons for international travel regulations | Ensures acceptance at global airport security checkpoints |
| UV Security Ink (Optional) | Invisible ink visible only under UV light | Adds covert authentication for higher-risk scenarios |
| Dual-Level Security Seals | Combines permanent seal + barcode or numbering | Multi-layered protection for sensitive contents |
| Transparent Front + Opaque Back | Allows inspection while hiding sensitive sender information | Balances visibility and discretion for customs or law enforcement |
| Recyclable / Eco-Friendly Films | HDPE, LDPE, or co-extruded recyclable materials | Meets sustainability goals and reduces plastic waste footprint |
✅ Tip: These features make STEB bags ideal for duty-free retailers, airports, banks, government agencies, and pharmaceutical firms that require reliable tamper-evident packaging and regulatory compliance.
7. Core Benefits of STEB Bags
| Benefit | Description | Value to B2B Buyers |
|---|---|---|
| Regulatory Compliance | Fully meets ICAO, TSA, and international customs packaging standards | Ensures smooth airport handling and avoids customs delays or penalties |
| Tamper Detection | VOID seal, destructible adhesive, or UV ink exposes interference attempts | Reduces inventory shrinkage, insider theft, and customer disputes |
| Chain-of-Custody Assurance | Serialized barcodes and writable fields enable traceable transactions | Critical for government, law enforcement, and financial institutions |
| Custom Branding | OEM/ODM printing, barcode integration, and color coding support | Reinforces brand identity and improves process efficiency |
| Bulk Order & OEM Friendly | Supports large-scale procurement and tailored designs | Suitable for global retailers, airport operators, and secure logistics |
| Secure International Transit | STEB bags accepted at airports worldwide for liquid duty-free transport | Enables safe and compliant passenger experience globally |
| Multi-Industry Use | Adaptable to retail, pharma, legal, banking, and aviation sectors | Helps standardize packaging across departments or global branches |
| Eco-Compliant Materials | Available in recyclable HDPE/LDPE or co-extruded eco films | Supports sustainability goals and aligns with green procurement initiatives |
💡Tips: When sourcing tamper-evident packaging, look for suppliers who offer certified STEB bags with customization, fast lead times, and experience in duty-free and law enforcement logistics. This ensures your packaging meets both compliance and operational demands.
8. How to Choose the Right STEB Bag Supplier
Selecting the right STEB bag supplier is essential for ensuring both compliance and operational efficiency—especially if you’re sourcing for sensitive industries like travel retail, finance, or pharmaceuticals. Here’s what to evaluate:
- Industry Experience: Work with a STEB bag supplier who has a solid track record serving high-security sectors such as banks, airport duty-free retailers, customs agencies, and pharmaceutical distributors. Experience in handling sensitive use cases ensures better alignment with your needs.
- Certifications & Compliance: A reputable supplier should meet international standards such as ISO 9001, REACH, and TSA/ICAO packaging compliance. These certifications prove their products are globally accepted and suitable for regulated environments.
- OEM/ODM Customization Options: Leading suppliers offer a full range of customizable duty free STEB bags, including multiple size options, company logo printing, multilingual messaging, and unique barcode or QR code serialization. This is crucial for maintaining your brand integrity and operational traceability.
- Scalable Production Capacity: Ensure your supplier can handle both bulk orders and small pilot batches. Ask about their average turnaround time and whether they provide expedited production services to accommodate time-sensitive shipments.
- Strict Quality Testing: Look for evidence of lab-tested durability, tamper resistance, and seal integrity. Bags should pass tensile strength and temperature resistance benchmarks to withstand international transport and rough handling.
- After-Sales Support & Documentation: A good STEB bag supplier will provide you with product datasheets, usage guidelines, and compliance documents required for customs or audits.
💼 Pro Tip: Build a long-term partnership with a supplier who not only delivers high-quality STEB bags but also provides consulting for product selection, samples for pilot testing, and logistics coordination for smooth international shipping.
9. Why Choose EcoSecurityTape for STEB Bags
At EcoSecurityTape, we’re more than just a STEB bag supplier—we’re your trusted partner in building secure, compliant, and scalable packaging solutions. Here’s why global brands, customs agencies, and travel retailers rely on us:
✅ End-to-End Sourcing Support in China
We’re not just a manufacturer—we guide you through every step of the China sourcing process. From verifying upstream suppliers to arranging factory audits and coordinating mixed container shipments, we help reduce sourcing risks and save time for your procurement team.
✅ Complete OEM/ODM Customization
Whether it’s a duty free STEB bag that meets ICAO airport guidelines or a high-spec bag for forensic use, we offer full customization:
- Bag dimensions
- Security level (Level I–V)
- Multilingual printing
- Unique serial numbers, QR codes, and branding
- Custom packaging & documentation
✅ Small MOQ & Pilot-Friendly
We support low minimum order quantities, making us ideal for pilot projects, government tenders, or new market testing. Scale as you grow without overspending on inventory.
✅ One-Stop Tamper-Evident Packaging Partner
Beyond STEB bags, we supply a full ecosystem of tamper-evident solutions—including security tapes, void labels, evidence seals, and anti-counterfeit stickers. This helps you consolidate sourcing and ensures consistency across your security packaging needs.
✅ Proven Export Experience
We serve clients in over 30 countries, including Europe, the Middle East, Southeast Asia, and Latin America. Our export team handles customs paperwork, certificate requests (e.g., ISO 9001, REACH, MSDS), and multilingual communication to ensure smooth collaboration.
👉 Let’s secure your global supply chain. Contact us today to request OEM STEB bag samples, get a tailored quote, or discuss how we can optimize your travel retail packaging.
✅ One-Stop Tamper-Evident Packaging Partner
Beyond STEB bags, we supply a full ecosystem of tamper-evident packaging solutions—including tamper-evident security bags, security tapes, void labels, and anti-counterfeit stickers. This helps you consolidate sourcing and ensures consistency across your security packaging needs.
10. FAQs About STEB Bags
Q1: What does STEB stand for?
STEB stands for Security Tamper Evident Bag, a specialized packaging solution designed to prevent unauthorized access. STEB bags are widely used in airports, banks, and legal sectors where high-integrity transport is required.
Q2: Can I customize the bag size, seal level, and barcode system?
Yes. We offer full OEM/ODM customization including bag dimensions, multi-language printing, tamper-evident seal levels (from Level I to Level V), barcode/QR integration, and even color-coded branding for travel retailers or law enforcement.
Q3: What’s the lead time for bulk or customized orders?
Standard lead time is 7–14 working days, depending on order volume and customization complexity. For time-sensitive needs (e.g., urgent airport restocks), expedited processing and global shipping are available.
Q4: Do STEB bags comply with airport security and customs regulations?
Absolutely. Our duty free STEB bags meet ICAO and TSA guidelines, and are used in international airport zones worldwide for tax-free liquid transport. Documentation can be provided for customs or compliance checks.
Q5: Are STEB bags environmentally friendly or recyclable?
Yes. Most of our STEB bags are produced using recyclable HDPE/LDPE materials, complying with RoHS, REACH, and sustainability standards. We can also provide eco-friendly options for environmentally conscious partners.
Q6: What’s the minimum order quantity (MOQ)?
Our low MOQ allows flexibility for both large procurement teams and pilot projects. Whether you’re an airport, government body, or brand distributor, we can tailor the order to your actual needs.
Q7: Can I include STEB bags in a consolidated order with other tamper-evident products?
Yes! We support full order consolidation. You can bundle your tamper-evident security tapes, labels, and STEB bags in one shipment to save logistics costs and streamline supply.
11. Final Thoughts
STEB bags are no longer optional—they’re essential. In an era of escalating security threats, regulatory scrutiny, and customer expectations, Security Tamper Evident Bags serve as a front-line defense against tampering, theft, and non-compliance. Whether you’re moving duty-free liquids through international airports, transferring large cash volumes, or securing forensic evidence, STEB bags ensure your packaging is both secure and accountable.
At EcoSecurityTape, we don’t just deliver bags—we deliver peace of mind.
- 🌍 Global Reach: We ship internationally and support travel retailers, airport operations, banks, and government agencies worldwide.
- 🎯 OEM & Small-Batch Customization: Whether you need 500 or 50,000 units, we tailor every order to your branding, sizing, and compliance needs.
- 📑 Regulatory Expertise: All our duty free STEB bags comply with ICAO, TSA, and customs standards, with certificates available on request.
- 🔒 End-to-End Anti-Counterfeit Solutions: From tamper evident tapes to security labels and custom seals, we support every stage of your supply chain security.
📦 Ready to secure your shipments and protect your brand?
👉 Request a free STEB bag sample or speak with a product consultant today to explore custom options tailored to your industry.