Views: 228 Author: WENVA machine Publish Time: 2025-09-25 Origin: Site
Content Menu
● Importance of Cleaning in Biscuit Production Lines
● Step-by-Step Daily Cleaning SOP for Biscuit Production Lines
>> Dough Sheeter and Forming Equipment
>> Stacker and Packaging Machine
>> Final Inspection and Documentation
● Compliance with Food Safety Standards
● Frequently Asked Questions (FAQ)
In modern food manufacturing, hygiene and consistency are non-negotiable. Biscuit production lines, consisting of mixers, sheeters, ovens, conveyors, stackers, and packaging machines, operate continuously to meet high production demands. However, without a proper Cleaning SOP (Standard Operating Procedure), even the most advanced production line can face issues such as contamination, product defects, or reduced equipment efficiency.
This article explores a comprehensive daily cleaning SOP for biscuit production lines, designed to ensure food safety, improve efficiency, and extend the lifespan of machinery.
Daily cleaning is not only about visual cleanliness but also about eliminating residues, preventing cross-contamination, and maintaining food safety standards such as HACCP and ISO22000. The key benefits include:
Ensuring consistent product quality by avoiding leftover dough or oil buildup
Reducing microbial growth and contamination risks
Extending equipment lifespan through proper maintenance
Meeting international compliance and audit requirements
Improving production efficiency by minimizing unplanned downtime
Before starting the cleaning process, certain preparations must be made:
Shut down the production line completely and disconnect power supply.
Wear appropriate PPE (personal protective equipment) including gloves, masks, and safety goggles.
Remove any leftover biscuits, packaging material, or ingredients.
Prepare cleaning tools such as brushes, food-grade cleaning solutions, cloths, and compressed air.
Mixers accumulate flour dust and dough residues quickly.
Open mixer covers and remove any large dough chunks.
Use brushes and warm water to clean surfaces, paying attention to corners.
For planetary or horizontal mixers, detach removable parts and clean separately.
Dry all surfaces thoroughly before reassembly to prevent rusting.
These machines handle dough sheets directly, making hygiene crucial.
Clean rollers, scrapers, and belts with food-safe detergent.
Inspect for dough buildup between rollers and remove carefully.
Use compressed air to blow out flour particles from hard-to-reach areas.
Ensure all surfaces are fully dried before restarting operations.
Ovens accumulate crumbs, oil vapors, and soot.
Remove loose crumbs using a vacuum or specialized crumb collector.
Clean mesh belts with brushes and, if necessary, use mild food-grade degreasers.
Inspect burners or heating elements for soot buildup and clean accordingly.
Avoid excessive water use to prevent damage to heating systems.
Cooling conveyors attract dust and oil residues.
Stop conveyor movement and manually remove leftover crumbs.
Wipe down belts with warm water and cleaning solution.
Check the belt alignment and tension system during cleaning.
Dry completely to prevent bacterial growth.
Oil sprayers require careful cleaning to prevent clogging.
Empty the oil tank and flush with warm water or food-grade detergent.
Disassemble centrifugal discs and clean with a brush.
Inspect oil mist recovery filters and replace or wash them.
Ensure no oil residue is left to prevent microbial contamination.
These machines directly handle finished biscuits.
Clean star wheels, feeding trays, and guiding channels.
Sanitize contact surfaces with food-grade disinfectants.
Vacuum crumbs from packaging belts.
Check sealing devices and remove oil or dust buildup.
After cleaning, perform a full inspection of all machines.
Ensure no water or detergent residue remains.
Record the cleaning activity in a daily maintenance log.
Have a supervisor verify and sign off on the SOP completion.
Daily cleaning: Mixers, sheeters, conveyors, packaging machines.
Weekly deep cleaning: Tunnel oven, oil sprayer, net sweepers.
Monthly inspection: Electrical systems, lubrication points, motor housings.
Always use food-grade cleaning chemicals.
Train staff on hygiene protocols and proper SOP execution.
Combine cleaning with preventive maintenance to save downtime.
Use color-coded brushes and tools to avoid cross-contamination.
Schedule cleaning during production breaks to minimize impact.
Following a structured cleaning SOP ensures compliance with international standards:
HACCP (Hazard Analysis and Critical Control Points)
ISO22000 Food Safety Management Systems
FDA and EU food-grade material standards
These certifications not only guarantee food safety but also enhance customer trust and brand credibility.
Using excessive water on electrical components
Skipping hard-to-reach areas in rollers and ovens
Not drying equipment properly, leading to rust and mold
Ignoring oil mist buildup in sprayers and exhaust systems
Inconsistent documentation of cleaning activities
A well-implemented daily cleaning SOP for biscuit production lines is essential for maintaining hygiene, ensuring food safety, and extending equipment lifespan. By following structured steps and committing to regular inspections, biscuit manufacturers can avoid costly downtime, improve product quality, and meet international safety standards.
1. What cleaning chemicals should be used for biscuit production lines?
Only food-grade cleaning solutions approved by international safety standards should be used.
2. How often should tunnel ovens be cleaned?
Crumbs should be removed daily, while deep cleaning with degreasers should be done weekly.
3. Can high-pressure water be used for cleaning biscuit machines?
No, as it may damage electrical components and increase rust risk. Use low-pressure cleaning methods.
4.How can oil mist from sprayers be controlled?
By using machines with integrated oil mist recovery and filtration systems.
5. Why is documentation of cleaning important?
It ensures accountability, supports food safety audits, and helps track maintenance schedules.
