Dry ice cleaning in the pharmaceutical and medical sectors: GMP-compliant, validatable, residue-free
GMP-compliant dry ice cleaning for pharmaceutical and medical technology. Residue-free, validatable, with no chemical contamination. Cleanroom-compatible to ISO 14644.
Pharmaceutical & medical: dry ice blasting
In pharmaceutical production, cleaning processes are part of product quality. Any residue, whether a chemical trace, a particle or cross-contamination between batches, can render an entire batch unusable and have regulatory consequences.
Dry ice cleaning is the only process that, by definition, leaves no residue. The CO₂ sublimates completely into gas on impact: no moisture, no solvent residue, no particles. This property makes dry ice unique for GMP-regulated environments: the cleaning itself cannot cause contamination.
Since the update of EU GMP Annex 1 (August 2023), manufacturers of sterile medicinal products must demonstrate a Contamination Control Strategy (CCS). Dry ice blasting directly addresses the requirement to remove disinfectant residues effectively, a point at which many conventional processes fail. The process is fully validatable within the IQ/OQ/PQ framework.
Typical applications:
Pharmaceutical & medical
Dry ice blasting solves industry-specific cleaning tasks where conventional methods reach their limits.
Tablet presses & capsule fillers
Product changeovers in under 30 minutes instead of several hours. Powder residue, binders and traces of active ingredients are removed without residue, demonstrably below PDE limits.
Filling lines & sealing stations
Adhesives, film remnants and product deposits on filling and sealing lines are removed without dismantling. Ideal for batch changeovers in parenteral manufacturing.
Cleanroom surfaces
Walls, floors, ceilings and doors in cleanrooms are freed of disinfectant residue and biofilm, without introducing additional moisture into the controlled environment.
Granulators & coaters
Polymer residue and sugar and wax coatings in coating drums and fluid bed systems are removed efficiently, with no soaking time and no solvents.
Medical device manufacturing
Injection moulds for catheters, stents and implants are cleaned with up to 75% less cleaning time. Silicone residue, burr particles and release agents are removed without residue.
Pharmaceutical & medical: why dry ice?
Pharmaceutical & medical: these industry-specific benefits make dry ice blasting the most efficient cleaning solution.
No chemical residues, by definition
CO₂ sublimates completely into gas. There is physically no way for the cleaning medium itself to leave residues. This eliminates the risk of solvent carryover between batches, a critical point in FDA and EMA inspections.
Validatable within the IQ/OQ/PQ framework
All blasting parameters (pressure, pellet size, flow rate, distance, angle) are reproducible and documentable. Cleaning can be validated with swab and rinse samples. Acceptance criteria on a PDE basis (EMA guideline since 2015) are met.
Faster batch changeovers
Tablet presses can be changed over to a new product in under 30 minutes, instead of 4 to 6 hours with conventional wet cleaning. This means more production capacity and shorter lead times on multi-product lines.
Cleanroom-compatible to ISO 14644
Dry ice blasting introduces no particles, no moisture and no chemicals into the cleanroom. With suitable extraction and CO₂ monitoring, the process can be used in ISO Class 5 to 8 cleanrooms.
Addresses the EU GMP Annex 1 CCS requirement
The updated Annex 1 (2023) requires a Contamination Control Strategy, including the removal of disinfectant residues. Dry ice removes these residues without leaving new ones itself, a documentable contribution to the CCS.
Before and after from real projects
This is how plants and components look before and after dry ice cleaning. Click on an image pair to open the enlarged view.
Dry ice vs. alternatives
Pharmaceutical & medical: a direct comparison shows why companies are switching to dry ice blasting.
| Criterion | Dry ice | Wet cleaning | Wipe disinfection |
|---|---|---|---|
| Residues | None: sublimates completely | Water + chemical residues | Disinfectant residues |
| Validatability | IQ/OQ/PQ-ready | Validatable with effort | Difficult to reproduce |
| Batch changeover | < 30 minutes | 4 to 6 hours | 1 to 2 hours |
| Cleanroom suitability | ISO 5 to 8 (with extraction) | Moisture problem | Yes, but manual |
| Annex 1 CCS | Directly addressed | Creates residues itself | Partly |
Pharmaceutical & medical: FAQ on dry ice cleaning
Pharmaceutical & medical: answers to the most frequently asked questions about dry ice cleaning.
Can’t find your question?0800 0010982 · Mon to Fri, 7:00 to 18:00Yes. By definition, the process leaves no residue, and it is reproducible and documentable. It directly addresses the requirements of EU GMP Annex 1, in particular the Contamination Control Strategy and the removal of disinfectant residues.
Yes, with suitable extraction and CO₂ monitoring. Dry ice introduces no particles and no moisture. The process can be used in ISO Class 5 to 8 cleanrooms. Safety note: CO₂ is heavier than air and collects at floor level, so gas detectors to DIN EN 45544 are mandatory.
Through the standard IQ/OQ/PQ framework: installation qualification (documenting parameters), operational qualification (verifying that the cleaning result is reproducible) and performance qualification (validating under production conditions). Acceptance criteria are defined on a PDE basis in line with the EMA guideline.
Yes. Because the process leaves no residue, no active ingredient is carried over from batch A to batch B. Tablet presses can be changed over to a new product in under 30 minutes, instead of 4 to 6 hours with wet cleaning.
CO₂ monitoring is mandatory (occupational exposure limit, AGW, of 0.5% by volume; gas detectors to DIN EN 45544). In cleanrooms: extraction, ESD earthing of the blasting lance and PPE (hearing protection, safety goggles, gloves). We bring all the safety equipment with us and draw up a site-specific safety plan.
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