Hohenstein Hygienically Clean independently verifies your laundry to the highest standards.

Our certification is unique because quality and hygiene are checked year-round, using standards far higher than other certifications. 

To guarantee that our certification standards are up to date, we partner with experts and use the latest methods to constantly develop and improve technical and hygienic processes.

11 Critical Control Points.

Where there is risk of contamination or improper cleaning

On-site auditing and lab testing addresses disinfection efficiency (time + temperature + chemicals + water), hygiene checks (hands + surfaces + rinsing water) and risk identification and mitigation strategies.

Certificates are issued for one year.


For customers of certified laundry

  • Truly independent, third-party auditing of your service provider
  • Proven disinfection efficiency
  • Micro-biological testing of processing surfaces to verify proper disinfection
  • Laboratory validated wash chemistry performance
  • Control on-site (no sending of "golden" samples)
  • Quarterly textile testing

For industrial laundries

  • Risk identification & mitigation strategies
  • In-plant confirmation of Hygienically Clean with review of processes
  • Control of process efficiency with standard living bacteria
  • Control of environment
  • Verification of  >7 log10 reduction
  • Validation of HACCP plan

It doesn't take much bacteria to cause infection.

Validation of 7 Log reduction ensures elimination of pathogens and prevention of infection transmission.

When textiles are heavily contaminated with potentially infective body substances (e.g., blood, stool, urine), they can contain 1 x 10^4 to 1 x 10^6 colony-forming units of bacteria per square centimeter of fabric.

7 Decimal Log Steps in Pictures.


Laundry Team USA

Start with product development.

Hohenstein offers customized testing that is specific to your application's requirements.

Ben Mead
Managing Director
Hohenstein Institute America