Dry Ice Blasting for Ovens, Dryers, Conveyors & Food Lines
In a dry-processing zone, water is the problem. It is the pathway for listeria and mold, it forces long drying cycles, and it turns a sanitation shift into a two-shift event. Dry ice blasting removes baked-on product residue without introducing a drop of it.
Ovens, spiral freezers, proofers, dryers, fryers, conveyors, mixers, extruders, and packaging equipment accumulate carbonized product, grease, sugar, flour paste, protein film, and allergen residue in exactly the places a scraper cannot reach. Hot water and caustic do reach them, but they also leave moisture inside a food-contact environment and lengthen the sanitation window.
CO₂ pellets are food-safe, leave no residue, and sublimate to gas on contact. Sanitation crews can clean bake bands, chain, belting, hoods, ducting, seals, and framing in place, without disassembly and without a rinse step. When the crew is finished, the line is dry and the released soil has been vacuumed away.
The practical outcome is a shorter sanitation window and a cleaner risk profile. Many plants schedule dry ice cleaning against their master sanitation schedule, allergen changeovers, and pre-audit prep specifically because it avoids adding water to zones that are supposed to stay dry.
What We Remove
- Carbonized product and bake-on residue
- Grease, oil, and protein film
- Sugar, flour paste, and dough buildup
- Allergen residue at changeover
- Mold and biofilm on framing and ducting
- Packaging adhesive and label residue
What You Get
- No water introduced into dry-processing zones
- Shorter sanitation windows and faster line restarts
- Cleaning in place with no disassembly
- No chemical residue or rinse validation burden
- Documentation support for audits and changeovers
How a food equipment cleaning Job Runs
- 01Coordinate with your QA and sanitation leads on zone, allergen, and documentation requirements
- 02Confirm LOTO, guarding, and ventilation with CO₂ monitoring for enclosed equipment
- 03Protect sensors, load cells, and any surface excluded from scope
- 04Blast in place, working top-down with continuous vacuum recovery
- 05Turn the line over dry, with before/after documentation for your records
Also Called CO₂ Cleaning
Maintenance teams search for this work as food equipment cleaning, dry ice blasting, CO₂ cleaning, CO₂ blasting, dry ice blast cleaning, carbon dioxide blasting, and cryogenic cleaning. They all describe the same process — solid CO₂ pellets in compressed air, with no water, chemicals, or abrasive media, and no spent media to dispose of afterward.
How a food equipment cleaning Project Runs
Every project follows the same disciplined sequence — scoped to your facility, your safety program, and your shutdown window.
1. Site Walkdown & Scope
A specialist reviews your equipment, contaminants, access constraints, shutdown window, and safety requirements — by phone, video, or on-site walkdown.
2. Plan, Quote & Schedule
You receive a written scope of work and quote. We coordinate JSAs, lockout/tagout, hot work, confined space, and any plant-specific safety paperwork before mobilization.
3. Mobilization
Our crew arrives with diesel air compressors, blasting equipment, hose, PPE, CO₂ pellets, and supporting tools. Most projects are fully self-contained — no plant utilities required.
4. Cleaning & QC
Trained operators clean in place using non-abrasive dry ice. We work in shifts to match outage windows and document progress as we go.
5. Walkthrough & Turnover
A final walkthrough confirms results with your team. We leave the work area clean — no grit, no media, no slurry to dispose of.
Why Facilities Choose This Method
Dry — No Water
CO₂ pellets sublimate on impact. No water intrusion into bearings, electrical components, or insulation; no drying time before restart.
Non-Abrasive
Helps protect tooling, fins, gaskets, and finished surfaces that grit blasting would profile or pit.
Non-Conductive
Suited for cleaning around electrical components when paired with proper LOTO, PPE, and clearance procedures.
No Secondary Waste
Only the removed contaminant needs to be collected. No spent blast media, no slurry, no chemical wash water.
In-Place Cleaning
Most equipment can be cleaned without disassembly — reducing labor, downtime, and re-commissioning risk.
FDA-GRAS CO₂
CO₂ is recognized by the FDA as Generally Recognized as Safe under cGMP, supporting use on food-zone equipment by trained operators.
Equipment & Surfaces We Commonly Clean
- Conveyors, augers, and rollers
- Motors, pumps, gearboxes
- Robotic cells and end-of-arm tooling
- Injection and compression molds
- Heat exchangers and tube bundles
- Switchgear, MCCs, transformers
- Generators, rotors, stators
- Turbines and inlet houses
- Bakery ovens, mixers, fillers
- Tanks, vessels, and structural steel
Frequently Asked Questions
Is dry ice food-safe?
Solid CO₂ is food-grade and leaves no residue — it becomes gas. That is precisely why the method is accepted in food and beverage plants where leftover media on a contact surface would create a cleaning and validation problem.
Can you clean during production?
Not on running food-contact equipment. Work is scheduled into sanitation windows, changeovers, or planned downtime, with the equipment locked out and the zone controlled to your plant's standards.
Does this replace our chemical sanitation?
No. Dry ice blasting is a soil-removal step, not a sanitizer. It removes the baked-on and bonded residue that chemical sanitation cannot address efficiently, which usually makes the chemical step faster and more effective.
How does this help with listeria control?
By not adding water. Moisture in dry-processing zones is a recognized driver of listeria harborage, so removing residue without water eliminates a control problem rather than trading one for another.
Does dry ice blasting damage equipment?
Dry ice blasting is non-abrasive. Solid CO₂ pellets are much softer than sand, walnut shell, or soda media. The cleaning action comes from thermal shock and the kinetic effect of sublimating pellets — not abrasion. When operated correctly it removes contaminants while leaving the underlying substrate intact.
Can equipment stay in place during cleaning?
Yes. The dry, non-conductive process allows most equipment to be cleaned in place — including production lines, motors, robotics, switchgear, and turbines — provided proper lockout/tagout and clearance procedures are followed.
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Talk to a specialist about your equipment and your window.