Short answer
CIP refers to the cleaning-in-place approach and SIP to sterilization-in-place. In addition to the production fluid, the hose and seals must also meet the chemical, temperature and duration conditions of these cycles. The name CIP or SIP on its own is not a standard recipe.
Technical explanation
Cleaning and sterilization cycles impose different loads on the material. Chemical composition, concentration, temperature, contact time and number of repetitions are assessed. Even among compounds in the same elastomer family there may be different resistances. Topics such as surface and connection design, drainage and dead volume also affect cleanability. A product found suitable by the manufacturer for a specific cycle should not be generalized as suitable for all CIP/SIP conditions.
Topic-specific checkpoints
| Item | Description |
|---|---|
| CIP inputs | Chemical, ratio, temperature, duration and flow condition. |
| SIP inputs | Sterilization medium, temperature, duration and pressure condition. |
| Material scope | Inner tube, seal, connection and bonding/layer construction. |
| Facility verification | Cleanability and process acceptance; separate from material resistance. |
How is it assessed in practice?
Transfer the facility cycle step by step into a data table: pre-rinse, chemical contact, rinse and, if any, sterilization are separate conditions. This table does not replace an operating instruction; it is input for the material assessment. For example, when the cleaning temperature is raised, it should not be considered only a change in an energy setting; the suitability of the hose and seal should also be reviewed. Product changes and cycle changes should be linked to a revision; an old approval should not be carried over automatically to a new condition.
Original editorial recommendation; not a clause of a standard.
Frequently asked questions
Is a steam-resistant hose automatically suitable for SIP?
No. Hygienic design, process conditions, contact documents and the assembly system used must also be assessed. Temperature resistance on its own does not validate the sterilization process.
Source coverage
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S037
CIP and SIP Trelleborg · accessed 2026-10-19 Aggressive chemicals; CIP facts; research results
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S052
Food contact materials legislation European Commission · accessed 2026-10-19 Framework, plastics and good manufacturing practice legislation