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Chemical-free cleaning sounds a bit risky, doesn’t it? We’ve all grown used to powerful solvents, alkalies and acids being used for industrial cleaning. Yet they have so many associated health risks that you’d think that in this day and age of Health and Safety compliance they’d be gone!

The fact is, some things just can’t be cleaned without them, right? If this is how you’ve thought up until now, let me introduce you to a little secret called “Dry Ice Blasting”.

How Dry Ice Blasting works:

Image showing how dry ice blasting effectively removes soil from a surface

Image showing how dry ice blasting effectively removes soil from a surface.

Dry Ice pellets (frozen carbon dioxide pellets the size of grains of rice) are fired at the target soil via compressed air, similar to sand blasting. But unlike sandblasting, on impacting with the surface, the Dry Ice pellets instantly change from a solid into a gas (a process called sublimation) and disappear literally into thin air.

The soil and impurities are dislodged and fall to the floor but the cleaning agent simply disappears.

Too good to be true?  No it isn’t.  You’ve got to see it in action to believe it.  Watch a short video clip on this web page demonstrating Dry Ice cleaning


Many cleaning tasks that traditionally involved use of hazardous chemicals can be now cleaned using dry ice cleaning, eliminating the chemical hazards that have caused so many acute and chronic health issues over the years.

The cleaning agent (frozen carbon dioxide) is a naturally occurring gas, essential for plant life.  Apart from use in confined spaces, (where additional ventilation or breathing apparatus may be required,) CO2 cleaning is completely harm free.

No chemical clean up:





The other problem with cleaning using chemicals, is what to do with the waste?

Used chemical cleaning solutions can’t always just be tipped down the drain, they often need to be collected up and transported to an approved disposal site.  Any used cleaning cloths are contaminated and often end up in plastic bags in the trash, adding to the landfill problem.  And then the chemical containers themselves must be triple rinsed and taken to an approved waste facility.

Is any one actually calculating the cost of all this into their chemical cleaning program?

Dry Ice Blasting removes all of these problems and their associated costs.

No chemical residue:





So what about a surface that has been cleaned with chemicals?  Even with careful rinsing, how easy is it to achieve a 100% chemical-free surface again?

Chemical residue is a plague.  More and more we are learning about the long term effects of chemical residue on our bodies.

If you’re involved in the food and beverage industries, chemical residue is one of the #1 enemies.

Dry Ice Blasting effectively cleans soil from a surface and leaves zero residue.


The chemical-free sanitizing effect:






Due to it’s super cold temperature, (-79˚C,) dry ice cleaning has a sanitizing effect while it is cleaning a surface.  Bacteria, mould and fungi is killed upon impact.

And, because the cleaning process is totally dry, you further inhibit bacteria growth.

When you clean with Dry Ice Cleaning, you’re also sanitizing.

Read more about bacteria and pathogen control with Dry Ice Cleaning at Dry-ice blasting stops food pathogens cold By Jenni Spinner+, 06-Jun-2014


Go to the next level with your organization’s sustainability goals.  Don’t just reduce your reliance on hazardous chemicals, go chemical-free with Dry Ice Cleaning


About the Author.


Matthew Prestidge is an Industrial Hygiene and Clean Air consultant for Presco Environmental Services in New Zealand.  Having spent the last nine years creating more sustainable environments on industrial sites, Matthew has seen the good, the bad and the ugly and knows what is required to “clean up”.  

Do you have a cleaning challenge that Dry Ice Cleaning could solve?  Matthew offers a free consultation and professional advice on Dry Ice Cleaning for any industrial cleaning or hygiene issue.  Contact him at matthew@prescogroup.co.nz


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