Pink slime is a common problem in commercial dishwashers and glasswashers that tends to arise due to improper cleaning and maintenance. Thankfully, it can be easily resolved by implementing some simple measures to ensure the machine is clean and well looked after. Not only will this improve wash results, will also enhance the performance of your machine and help to extend its lifespan.
In this article, we explain what pink slime is and how it forms and provide instruction on how to tackle it and prevent it from returning in the future.
Understanding Pink Slime
What is Pink Slime?
Pink slime, also known as biofilm, is a slimy, pink deposit that can form inside your commercial dishwasher or glasswasher. It's formed from microorganisms including bacteria, fungi, algae, that thrive in warm and moist environments, making glass and dishwashers a perfect breeding ground.
Causes of Pink Slime Formation
Why Does Pink Slime Form?
- Warm and Moist Environment: Glass and dishwasher use high temperatures that create an ideal environment for microorganisms to thrive.
- Leftover Organic Matter: Residual food particles, soap residues, and other organic substances act as a food source for the microorganisms, promoting growth.
- Stagnant Water: Inactive periods or low usage can lead to stagnant water, creating a breeding ground for pink slime.
- Water Quality: Hard water with high mineral content can lead to mineral build up, providing additional surfaces for biofilm attachment.
- Inadequate Cleaning and Maintenance: Neglecting regular cleaning and maintenance allows pink slime to accumulate and persist.
Dealing with Pink Slime: Solutions
Regular Cleaning Routine
- Clean your machine daily, paying particular attention to wash and rinse arms, jets, nozzles, and filters.
- Read our guides on commercial dishwasher and commercial glasswasher cleaning for instructions.
- Clean the inside of the machine with a non-foaming cleaner, such as our Sanitiser & Degreaser.
- Remove visible debris and organic matter to discourage pink slime growth.
Sanitisation is Key
- Wipe the inside of the machine with a non-foaming surface cleaner, such as our Sanitiser & Degreaser.
- Use a high-quality cabinet glasswasher detergent with the right dosing equipment as per the manufacturer's recommendations.
- Proper sanitisation kills harmful microorganisms and helps remove existing pink slime.
Deep Cleaning
- Perform a thorough deep clean at least once a week, focusing on hidden areas where pink slime can accumulate.
- Take apart removable components and clean them thoroughly with a non-foaming cleaning agent, such as our Sanitiser & Degreaser.
Prevent Stagnation
- Avoid extended periods of inactivity by running your glass washer regularly.
- If the machine hasn't been used for a while, flush the water lines and components before use.
Control Temperature and Humidity
- Monitor the temperature and humidity of the room the machine is located in to discourage microbial growth.
- Configure your machine to the right temperatures:
- 52°C to 55°C wash temperature and a 70°C to 75°C rinse temperature for glasswashers.
- 60°C to 65°C wash temperature and 80°C to 85°C rinse temperature for commercial dishwashers.
Proper Drying
- After you have cleaned and turned the machine off at the end of service, leave the door open so it can dry overnight.
- Leaving the door closed will create a moist, humid environment perfect for bacteria growth.
Preventative Measures for a Slime-Free Glasswasher
Daily Cleaning Routine
- Make it a habit to clean both the inside and outside of your glasswasher daily.
- Refer to the daily maintenance guide for detailed instructions.
Weekly Maintenance
- Set aside time each week for a more thorough cleaning, focusing on hard-to-reach areas.
Sanitisation Schedule
- Regularly sanitise your machine to keep it free from harmful microorganisms.
Proper Training
- Ensure your staff members are trained in correct cleaning and maintenance procedures.
Professional Servicing
- Schedule regular professional servicing to address potential issues and maintain peak performance.
Read our Complete Guide to Cleaning and Commercial Glasswashers for detailed step-by-step instructions on how to look after your glasswasher to maximise performance and lifespan.
By following these instructions and staying consistent with your cleaning and maintenance efforts, you can effectively prevent pink slime formation and ensure a clean, efficient, and reliable commercial glasswasher for your business. Enjoy sparkling glassware that impresses your customers and reflects your commitment to top-notch hygiene and service. Happy washing!