What is a Manufacturing SOP?
A manufacturing SOP (Standard Operating Procedure) is a set of documented step-by-step work instructions designed to guide workers in performing manufacturing tasks. Manufacturing SOPs helps promote work consistency, prevent loss of quality, and retain brand reputation.
Advantages of Manufacturing SOPs
A good manufacturing SOP is designed to outline manufacturing processes. This is because it entails the day-to-day operations that ensure efficiency, safety, and quality of produced products. Every manufacturing company would ideally have SOPs because of these reasons :
- Quality control – Manufacturing SOPs help produce high-quality products consistently. An SOP ensures that staff production meets quality standards and satisfies the needs of clients.
- Productivity – Manufacturing SOPs are also designed to stay efficient. This system makes it easy for workers to achieve productivity since operational time frames will vary for each worker.
- Subjective performance evaluations – SOPs clearly define worker tasks and responsibilities. Objective performance evaluations are done by measuring actual performance against the standard set by manufacturing SOPs. Management and workers are able to have a basis for expectations when it comes to performance evaluations.
- Communication breakdown – SOPs are also a good venue to communicate process updates to workers.
- Reduced risk of accidents – Safe work practices are often integrated into manufacturing SOPs. SOPs also help establish a safety culture that helps companies to comply with safety regulations such as OSHA.
How to Write a Manufacturing SOP
Preparing a well-written manufacturing SOP document can guide employees to perform routine tasks in the best and safest way possible. While there is no official standard in writing an SOP document, starting with a template might give you an idea of what should be in your SOPs. Here are some steps that can help in writing an effective SOP while using a template.
Step 1: Determine the goal
Writing your manufacturing SOP begins with thinking of what you want to accomplish. Whether starting a new process or improving an existing one, determining the end game or the goal makes it easier to write the SOP document.
To give you an idea, we’ve written down the following examples:
Manufacturing SOP Compliance Template | Example 1: |
Purpose: The purpose of this SOP is to ensure that the correct steps are taken to roast, freeze-dry, and process coffee beans to produce instant coffee. |
Tablet Compression SOP Checklist | Example 2: |
Purpose: The purpose of this SOP is to ensure that the correct steps are taken when using the tablet press to perform tablet compression. |
Step 2: Define the scope
The scope defines the extent of your SOP document. It clarifies details such as limitations or exceptions of the SOP, and the people who will be engaging with it or will be impacted.
Manufacturing SOP Compliance Template | Example 1: |
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Scope: | – Where is the SOP to be used?
Chemical Manufacturing Lab – Who is the SOP for? Lab Personnel and Tablet Press Operators – Are there any specific limitations or exceptions to this SOP? This only applies to the production of pharmaceutical tablets. |
Tablet Compression SOP Checklist | Example 2: |
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Scope: | – Where is the SOP to be used?
Chemical Manufacturing Lab – Who is the SOP for? Lab Personnel and Tablet Press Operators – Are there any specific limitations or exceptions to this SOP? This only applies to the production of pharmaceutical tablets. |
Step 3: Choose a format
There are various formats you can write an SOP document. A manufacturing SOP commonly uses a step-by-step format, which is straightforward and easy to follow. There’s also the hierarchical format which is similar to the prior, the only difference is that it provides more detailed and specific instruction for each step. Lastly, the flowchart format where processes are illustrated. This is most suitable for processes that require decision-making. You can choose to use one or combine them, so long as it’s appropriate and can be easily understood by your audience.
Step 4: Write down the procedures
Depending on the format you chose, start writing down the procedures of your SOPs focus. A good principle to follow when writing is the 5 C’s: clear, concise, correct, courteous, and complete. Doing so will help eliminate the guesswork from the procedure and ensure that each step performed is consistent.
Manufacturing SOP Compliance Template | Example 1: |
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Procedure: | Step 1 – Wear PPE or sanitary clothing before entering the production floor
Step 2 – Activate vents before turning on industrial machines Step 3 – Set oven to 200°C for initial roasting of coffee beans Step 4 – Set coffee freezing hall to -50°C Step 5 – Put on thermal clothing before entering coffee freezing hall Step 6 – Set low pressure vacuum at 60°C Step 7 – Check conformity to specs and for visual defects during assembly line production Step 8 – Perform final inspections before products are packed in boxes |
Tablet Compression SOP Checklist | Example 2: |
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Procedure: |
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Preview the full manufacturing standard operating procedure sample PDF report.
Step 5: Review and update where necessary
After writing your SOP document, review and test it with other team members before sending it to stakeholders for approval. Once it gets approved, it will then be implemented and shared across relevant employees. However, it doesn’t stop there. SOPs should be continuously reviewed and updated, preferably every 6-12 months or as necessary.
Manufacturing SOP Example
For reference, here’s a completed example of SOP in manufacturing using a template:
Manufacturing SOP FAQs
In an ideal scenario, a manufacturing company would have a dedicated team for creating their SOPs. But in reality, one person–typically the process engineer–takes this job. To ensure a clear, concise, and accurate SOP, the writer should consult the employees working on the ground, their supervisors, and safety officers.
SOPs in manufacturing come in two types: technical and management SOPs. A technical SOP shows workers how to carry out and complete specific tasks through work orders and inspections. On the other hand, a management SOP lays down the steps in defining, implementing, and documenting all other forms of SOPs in the company.
Depending on the purpose and depth of the plan, manufacturing SOPs may come in the following forms:
- Hierarchical steps – indicate multiple steps for complex processes
- Flowcharts – map out action items for several potential results
- Checklists – lays out a step-by-step guide on completing specific tasks