Views: 222 Author: Loretta Publish Time: 2026-02-08 Origin: Site
Content Menu
● What Is Date Coding and Why It Matters
● Key Food Date Types and Terminology
● Primary vs Secondary Packaging: Where to Code What
● Make Sure All Printed Information Is Accurate
● Regulatory and Labelling Trends You Should Know
● Regular Maintenance of Printing and Coding Equipment
● Attentive Operators on Automated Production Lines
● Use Correct Coding Formats, Terminology, and Lot Structures
● Printing Quality: Legibility, Durability, and Brand Image
● Practical Checklist for Setting Shelf Life and Date Codes
● Reducing Food Waste Through Smarter Date Coding
● Coding Strategy for OEM and Private-Label Clients
● Overview of Common Date Terms and Their Purpose
● Strengthening Quality Systems Around Coding
● Take Your Food Packaging and Date Coding to the Next Level
● FAQs
>> 1. What is the difference between a use-by date and a best-before date?
>> 2. Why are regulators promoting “Best If Used By” wording?
>> 3. How can better date coding help reduce food waste?
>> 4. Do all countries follow the same rules for date formats?
>> 5. How often should coding equipment be maintained?
Food packaging and date coding are no longer just operational steps; they are central to food safety, traceability, and consumer trust across global markets. When manufacturers get packaging, labeling, and coding right, they minimize recalls, protect brand reputation, and meet strict export regulations. This guide explains best practices and practical steps you can implement on your production line, from data accuracy and coding technology to regulatory trends and line management.
Date coding refers to the printed information on food packaging that indicates how long a product remains safe and high quality, typically including use-by or best-before dates, lot numbers, and sometimes production time. It plays a critical role in food safety, inventory control, recall management, and consumer decision-making.
Key reasons date coding is essential:
- Food safety: Use-by dates help prevent consumption of unsafe, highly perishable foods.
- Quality perception: Best-before and “Best If Used By” codes signal optimal quality, texture, and taste.
- Traceability: Batch and lot codes enable targeted recalls and faster root-cause analysis.
- Regulatory compliance: Authorities expect clear, legible, and non-misleading date information on prepacked foods.
Different markets use specific date terms that carry legal or recommended meanings. Misusing these terms can confuse consumers and cause compliance issues.
- Use by: Indicates the last date the product is considered safe to consume for microbiologically perishable foods.
- Best before / Best before end: Indicates when the product may begin losing quality but is not necessarily unsafe.
- Best If Used By: An increasingly recommended standardized wording to reduce confusion about quality-based dates.
Many industry organizations and regulators encourage moving toward “Best If Used By” as the standard phrase for quality-based dates to reduce food waste and consumer confusion.
Understanding where to apply each code helps optimize traceability and scanning efficiency across the supply chain.
Primary packaging is the layer that directly touches the food, such as bottles, pouches, cans, or trays. It usually carries:
- Expiration or use-by or best-before date
- Lot or batch code
- Allergen and ingredient list on label
- Brand and nutrition information
Secondary packaging includes cartons, shrink wraps, and outer boxes that group multiple primary packs for storage and shipping. It normally includes:
- Larger barcodes for warehouse scanning
- Case-level lot or batch codes
- Shipping and inventory data
An effective system ensures alignment between codes on primary and secondary packaging so that logistics teams can track both unit and case movements consistently.
Accuracy is the most critical factor in food packaging and date coding. Incorrect ingredients, allergens, or dates can lead to severe health risks and expensive recalls.
Focus areas:
- Ingredients and allergens: Always print a complete, accurate ingredient list and emphasize major allergens as required by local regulations.
- Date codes: Verify that the use-by or best-before date format matches target market rules and internal shelf-life studies.
- Nutritional values: Ensure that declared values match formulation and testing data.
Implement a robust data management process:
1. Centralize master data (ingredients, allergen flags, shelf life, lot logic) in a controlled system.
2. Use role-based approvals for any label or code changes.
3. Perform regular line checks for content, position, and legibility of printed information.
Regulatory expectations for food labeling and date coding continue to evolve worldwide. Manufacturers that export must stay updated on:
- Clarified date formats and wording, emphasizing clear, uncoded dates like “Best before: 23 January 2025” and discouraging ambiguous formats.
- Standardized quality dates, with major industry bodies supporting “Best If Used By” as the preferred quality-based phrase.
- Food waste reduction initiatives that refine how shelf life and safety factors are calculated to reduce unnecessary food loss.
- Allergen labeling updates that require manufacturers to review labels and practices regularly.
In many export markets, authorities also issue labelling guidelines on date formats, allergen presentation, and additive declarations to help businesses align with local expectations.
Reliable date coding depends on well-maintained equipment. Poor maintenance leads to faded prints, missing characters, and unscannable barcodes that can disrupt distribution and cause rework.
Best practices:
- Create a preventive maintenance schedule for inkjet, laser, or thermal printers, including cleaning, nozzle checks, and calibration.
- Standardize start-up and shutdown procedures to minimize clogging and ink buildup.
- Keep critical spare parts such as printheads, filters, and cartridges in stock to avoid downtime.
Document every maintenance activity so you can correlate print defects with equipment status and improve your preventive plan over time.
Even highly automated lines still rely on attentive employees to detect subtle issues early. A single mis-configured printer can affect thousands of packs if not corrected quickly.
Train operators to:
- Monitor sample prints at defined intervals and check legibility, content, and alignment.
- Escalate when they notice missing codes, blurred characters, or inconsistent date formats.
- Log each incident, including time, product, shift, and root cause, for continuous improvement.
Strong date-marking practices, including staff training and oversight, significantly strengthen overall safety culture in food operations.
Using the correct terminology and coding structure is essential for both compliance and traceability.
Key points:
- Follow market-specific rules on whether a product needs use-by or best-before labeling based on its perishability.
- Ensure your lot code logic supports quick identification of production date, line, and batch, making recalls more targeted.
- Avoid internal shorthand or coded date formats that consumers might mistake for safety or quality information.
Where possible, combine human-readable text and machine-readable codes, such as barcodes or 2D codes, to support both consumer clarity and supply-chain automation.
Date and batch codes are part of the visible brand experience. Poor print quality sends a strong negative signal about overall product quality.
To ensure high-quality printing:
- Choose printing technology such as TIJ, CIJ, or laser that suits the substrate, whether carton, film, metal, or glass.
- Validate ink adhesion, drying time, and contrast under realistic line conditions.
- Confirm that barcodes and 2D codes are fully scannable through distribution and storage.
Well-executed coding on both primary and secondary packaging supports traceability, protects inventory accuracy, and preserves brand reputation.
Many manufacturers struggle with turning lab results and hazard analyses into practical date codes on packaging. A structured approach helps close this gap.
1. Characterize the product
Identify whether it is microbiologically perishable, such as chilled ready-to-eat foods, or mainly quality sensitive, such as dry snacks.
2. Conduct shelf-life testing
Perform microbiological, physicochemical, and sensory tests under expected storage conditions to define realistic shelf life.
3. Choose the right date type
Use use-by dates for safety-critical foods, and use best-before or Best If Used By dates for products where quality is the main driver.
4. Apply an appropriate safety factor
Apply a scientifically justified safety factor to account for variability, avoiding overly short dates and unnecessary food loss.
5. Validate in real production
Monitor complaints, returns, and sensory results to verify your dates remain realistic and safe over time.
Confusing or overly conservative date codes contribute significantly to avoidable food waste. By refining your coding practices, you can increase sustainability and protect your margins.
Strategies to reduce waste:
- Adopt standardized date language so consumers understand which codes relate to quality, not safety.
- Educate customers through on-pack statements or QR codes that explain what “Best If Used By” means.
- Optimize safety factors for shelf life, moving them closer to realistic values where food safety is already well controlled.
These measures support global efforts to cut food loss while maintaining robust consumer protection.
If you supply OEM or private-label products, you must align your coding system with each brand owner's requirements and multiple regulatory regimes.
Best practices for OEM manufacturers:
- Develop a customer-specific coding matrix that maps which date terms, languages, and formats to use per destination market and brand.
- Standardize your lot code structure internally, then convert or supplement as needed for each client while preserving traceability.
- Share validation data such as shelf-life studies, safety factor rationale, and print-quality tests to demonstrate your technical competence and strengthen long-term partnerships.
A clear OEM coding strategy creates a strong value-added service that helps your customers launch products faster and with fewer regulatory risks.
| Date term | Main purpose | Typical products |
|---|---|---|
| Use by | Safety; do not consume after this date. | Chilled ready-to-eat and other high-risk foods. |
| Best before | Quality; product may lose taste or texture after this date. | Dry, frozen, or shelf-stable foods. |
| Best If Used By | Quality; standardized wording to reduce confusion. | Packaged foods where quality is the main coding driver. |
| Best before end | Quality; often used where day precision is less critical. | Longer shelf-life products of more than several months. |
To support consistent, high-reliability coding, integrate date and lot marking into your quality and food-safety systems.
Key elements:
- HACCP integration: Treat coding verification as a critical control step linked to traceability and labeling hazards.
- Standard work instructions: Document how to set, verify, and record each code for every SKU.
- Internal audits: Regularly check labels on warehouse stock to confirm readability and compliance with current regulations.
Robust systems demonstrate due diligence and reinforce your experience, expertise, authoritativeness, and trustworthiness in the eyes of auditors, clients, and consumers.
If you are planning to upgrade your packaging line, improve code quality, or optimize date-coding for export markets, now is the time to act. Review your equipment, data, and processes, and partner with a packaging and coding machinery expert who understands international food-safety standards, OEM requirements, and high-speed automation, so you can deliver accurate, compliant, and brand-safe codes on every pack.
Contact us to get more information!
A use-by date refers to food safety, indicating the last day a highly perishable product should be consumed, while a best-before date relates to quality, such as taste and texture. Use-by dates should never be exceeded on high-risk foods, whereas best-before dates indicate when quality may start to decline rather than when the product becomes unsafe.
Standardizing on “Best If Used By” for quality-based dates helps reduce consumer confusion and food waste by clarifying that the date reflects quality rather than safety. This simple, consistent language makes it easier for shoppers to distinguish between safety-related dates and those that only signal optimal quality.
Better date coding reduces food waste by using clear wording, realistic shelf-life studies, and scientifically justified safety factors. Manufacturers avoid excessively short dates that cause retailers and consumers to discard products that are still safe and enjoyable to eat.
No. Different markets have specific expectations on wording, language, and date order. Exporters must adapt labels and codes for each destination's regulations and guidance, which can include different terms, character sets, and preferred formats such as day-month-year or month-day-year.
Coding equipment should be maintained following the manufacturer's recommended preventive maintenance schedule, combined with your own production experience. The ideal frequency depends on factors such as line speed, operating environment, ink type, and historical print-quality performance.
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