What’s the HACCP Flow Chart? A Beginner’s Guide

In the intricate world of food safety, ensuring that every step of the food production process is meticulously monitored is paramount. One of the foundational tools in achieving this is the HACCP flow chart.

Whether you’re a budding food entrepreneur or an established business looking to refine your processes, understanding and implementing a HACCP flow chart is essential. This guide demystifies the HACCP flow chart, its significance, and the steps to create one effectively.

Hazard Analysis and Critical Control Point (HACCP) is a systematic preventive approach to food safety. It identifies potential hazards in the food production process and implements measures to control or eliminate these risks. The HACCP system is globally recognized and forms the backbone of many food safety management systems.

Before diving into HACCP principles, it’s crucial to establish a clear understanding of your food production process, and this is where the HACCP flow chart becomes indispensable.

A HACCP flow chart is a graphical representation of the entire manufacturing process of a food business. It maps out the journey of food materials from the initial receipt of raw ingredients to the final delivery of finished products. This diagram serves as a critical tool in the HACCP plan, enabling businesses to visualize their processes comprehensively.

Key Components of a HACCP Flow Chart:

  • Raw Material Receiving: Entry point of all ingredients.
  • Inspection: Checking for hazards like contaminants or foreign objects.
  • Batch Weighing: Measuring ingredients accurately.
  • Processing: Includes thermal (cooking) or mechanical (mixing) processes.
  • Packaging: Wrapping or sealing the final product.
  • Quality Inspections: Ensuring products meet safety and quality standards.
  • Rework: Adjusting or correcting products if necessary.
  • Waste Flow: Managing by-products and waste.
  • End Product: Final goods ready for distribution.

Flow Chart Symbols:

  • Rectangles: Represent processes.
  • Arrows: Indicate the flow direction.
  • Diamonds: Decision points requiring yes/no outcomes.
  • Circles: Start and end points.
  • Rhomboids: Input materials.

Understanding the flow of food in a processing setup is crucial for identifying potential hazards at each stage. By mapping out the process, the HACCP team can pinpoint where risks like contamination, microbial growth, or allergen introduction may occur. This proactive approach ensures that preventive measures are in place, safeguarding public health and maintaining product integrity.

Benefits of Mapping Food Flow:

  • Hazard Identification: Spot potential risks early.
  • Process Optimization: Streamline operations for efficiency.
  • Error Detection: Easily identify where mistakes may occur.
  • Compliance: Meet regulatory requirements effectively.

While the necessity of a HACCP flow diagram varies by region and regulatory framework, it is often a prerequisite for developing a robust HACCP plan. In many jurisdictions, especially those adhering to the Codex Alimentarius or seeking HACCP certification, a flow diagram is mandatory.

Even in regions where it’s not legally required, a HACCP flow chart offers invaluable insights into your operations, aiding in quality control and process improvement.

Creating an effective HACCP flow chart involves a systematic approach. Here’s a step-by-step guide to help you navigate the process:

Step 1: Define All Processes in Your Company

Begin by documenting all process steps in your food business, from receiving raw materials to delivering the final product. It’s essential to capture every significant action without overcomplicating the chart with non-processing steps like cleaning or auditing.

Examples of Process Steps:

  • Picking herbal products
  • Ordering/buying products
  • Receiving and storing products
  • Thawing/defrosting
  • Cleaning vegetables
  • Preparing animal and non-animal food
  • Cooking and cooling
  • Freezing and re-storing
  • Re-heating and drying
  • Packaging/labeling
  • Transporting and serving food

Note: If your products undergo different processing methods, create separate flow charts for each to maintain clarity.

Step 2: List All HACCP Process Steps

Organize the defined processes in the order they occur in your facility. Ensure that all potential pathways are represented, accounting for any variations in the process flow.

Tip: Use arrows effectively to indicate the direction of the process and avoid confusion by keeping the flow logical and straightforward.

Step 3: Define Control Points and Critical Control Points

Differentiate between Control Points (CP) and Critical Control Points (CCP):

  • Control Points: Steps where hazards can be controlled but are not critical for safety.
  • Critical Control Points: Steps where control is essential to prevent, eliminate, or reduce hazards to acceptable levels.

Evaluate each process step for potential hazards based on severity and likelihood, marking them accordingly on the flow chart.

Step 4: Define Control Measures

For each identified CP and CCP, establish control measures that need to be monitored. These can include parameters like time, temperature, pH levels, or quality standards.

Examples of Control Measures:

  • Monitoring cooking temperatures.
  • Ensuring proper storage times.
  • Verifying packaging integrity.

Step 5: Verify Your HACCP Flow Chart

After constructing the flow chart, it’s imperative to verify its accuracy. This involves:

  • On-Site Walkthrough: Physically tracing the process to ensure all steps are accurately represented.
  • Review and Sign-Off: The HACCP team should approve the verified flow chart and maintain it on file.

When to Revise Your Flow Chart:

  • Annually: Regular updates to reflect any changes.
  • Process Changes: Installing new equipment or altering existing processes.
  • New Ingredients: Introducing ingredients that may impact safety, such as allergens.
  • Audit Findings: Implementing changes based on external reviews or certifications.

A flow process chart is a pictorial representation outlining each step a product undergoes from inception to completion. In the food industry, it typically includes:

  • Receival of Raw Materials
  • Storage of Ingredients
  • Preparation and Cooking
  • Cooling and Packing
  • Labeling and Storage
  • Dispatching Products

The complexity of the flow chart depends on the product and process intricacies. Tools like Microsoft Visio, Lucidchart, or other diagramming software can aid in creating clear and flexible flow charts.

Compliance with regional and international regulations often mandates the creation of a HACCP flow diagram. For instance:

  • Codex Alimentarius: Requires detailed flow charts as part of its HACCP guidelines.
  • FDA’s FSMA: While not explicitly requiring a flow diagram, it recommends comprehensive documentation of all process steps.

Ensuring that your HACCP flow chart meets regulatory standards is crucial for certification and maintaining market access.

When documenting your flow process chart, focus on process steps, inputs, and outputs:

  • Inputs: Ingredients, packaging materials, water, etc.
  • Outputs: Finished products, waste, by-products, etc.

Avoid: Including non-processing activities like cleaning, sanitizing, or testing, as they can clutter the chart and obscure the primary process flow.

Best Practices:

  • Simplicity: Keep the chart clear and easy to understand.
  • Flexibility: Use software that allows easy modifications.
  • Detail: Ensure each documented step is essential for understanding the process flow.

Verification ensures that your flow chart accurately reflects the actual processes. Steps for verification include:

  1. Physical Walkthrough: Compare the documented flow chart against the real-life process.
  2. Cross-Checking: Ensure all steps are included and correctly sequenced.
  3. Auditing: Prepare for potential audits by maintaining an accurate and verified flow chart.

Consequences of Poor Verification:

  • Missed Hazards: Incomplete charts can lead to unidentified risks.
  • Non-Conformance: Auditors may flag inaccuracies, jeopardizing certifications.
  • Food Safety Risks: Inaccurate flow charts can compromise product safety, leading to public health issues.

A HACCP flow chart is more than just a diagram—it’s a foundational tool that underpins the entire HACCP system. By providing a clear visual representation of your food production process, it enables effective hazard identification and control, ensuring the safety and quality of your products.

For businesses aiming to uphold the highest standards of food safety, investing time and resources into creating and maintaining an accurate HACCP flow chart is indispensable. Not only does it facilitate compliance with regulatory standards, but it also fosters operational excellence and consumer trust.


Embarking on the journey to implement a HACCP system might seem daunting, but with a well-structured flow chart and a dedicated HACCP team, ensuring food safety becomes a manageable and systematic endeavor. Remember, the safety of your consumers and the reputation of your business hinge on the meticulousness of your HACCP planning and execution.