As we enter the summer season, we want to remind our spray dryer customers of some safety basics:

Holiday Staffing: Vacation season is upon us. Now is the time to make sure all staff on all shifts are up-to-date on training and standard operating procedures. Read more about holiday staffing and spray dryer safety.

Explosion Protection: The dust created during the spray drying process comes with a risk for explosions. To minimize this risk make sure your system has adequate explosion venting and explosion suppression systems. Regular testing of these systems is a must in order to identify and correct deficiencies. You don’t want to learn about a failure of this system when you most need it to work.

Top Tip: Do NOT bolt shut over-pressure doors, which may be tempting due to CIP leakage. Likewise, DO NOT block panels or doors. There needs to be an escape route for pressure, otherwise, the only route for pressure venting will be back into your facility.

Fire Protection: Make sure your plant’s fire detection and fire suppression systems have been properly maintained and inspected. Testing and maintenance are vital. More information about fire protection and spray dryer safety is available here.

Gas Monitoring: We recommend the use of carbon monoxide detection. Learn more about making this a part of your dryer safety strategy here.

Process Monitoring and Control: These systems include temperature monitoring, pressure monitoring and emergency shutdown systems. Caloris can help you with the specifications and installation of these systems (or assessment of existing systems).

PPE: All personnel who operate and maintain the spray dryer should have access to proper personal protective equipment including goggles, gloves, masks, aprons and hearing protection.

Be sure to watch our Spray Dryer Safety webinar:

School Is In Session

If you need to brush up on your spray dryer knowledge, check out our “Summer School” session about spray dryers, including recommended reading, homework and extra credit assignments!

We Are Passionate About Spray Dryer Safety

Contact Caloris assistance with implementing and/or improving spray dryer safety systems. Call 410-822-6900 or send email to to be connected with a dryer specialist.

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About Caloris

Caloris transforms process systems design for the better with unexpected, future-focused solutions that solve real operational problems. We engineer efficient, dependable and productive solutions that also improve environmental sustainability where practical. Designed with the end user in mind to drive plant productivity. Caloris offers evaporation, membrane filtration and spray drying process systems for food and dairy industries, as well as for water reuse and wastewater treatment applications. Both Caloris’ custom and pre-engineered packaged systems are designed to meet our customers’ specific concentration/purification needs utilizing the most cost effective and energy efficient technologies available. Whether concentrating dairy, food or juice products at a high-volume production facility, or processing industrial wastewaters to reduce transportation and treatment costs and recover re-usable water, Caloris provides a range of options and technologies.