• EHEDG Worldwide
Air Handling

Dr. Thomas Caesar
Freudenberg Filtration Technologies KG, Germany
E-Mail: thomas.caesarProtected mail-address@freudenberg-filter.com
Phone: +49 62 01 80 25 96

Published Guidelines:
Doc. 30 - Guidelines on Air Handling in the Food Industry (2005). Note: Document was withdrawn in September 2016. Doc. 30 was integrated into Doc. 47.

Doc. 47 - Guidelines on Air Handling Systems in the Food Industry - Air Quality Control for Building Ventilation(2016)

Bakery Equipment

Dr. Gerhard Hauser
E-Mail: gerhardwrhauserProtected mail-address@yahoo.de
Phone: +49 89 3 19 12 67

The experts team is working on a new guideline draft.

Building Design

Dr. John Holah
Holchem Laboratories Ltd, United Kingdom
E-Mail: john.holahProtected mail-address@holchem.co.uk
三级小说Phone: +44 1706 23856

Published Guideline:
三级小说Doc. 44 - Hygienic Design Principles for Food Factories (2014)


Andy Timperley
Timperley Consulting, United Kingdom
E-Mail: AndyTProtected mail-address@TimperleyConsulting.co.uk
Phone: +44 1789 49 00 81

The members of this Working Group are mainly the EHEDG authorized test institutes, representatives from the industry such as equipment manufacturers of food processing machinery and food producers as well as the representatives from related authorities.

The main task of this Working Group is the monitoring, update and further development of the EHEDG test methods. For further information please see Certification.

Published Guidelines
Doc. 2 - A method for assessing the in-place cleanability of food processing equipment (2007)
Doc. 5 - A method for the assessment of in-line sterilisability of food processing equipment (2004)
Doc. 7 - A method for the assessment of bacteria-tightness of food processing equipment (2004)
Doc. 16 - Hygienic pipe couplings (1997)
Doc. 19 - A method for assessing the bacterial impermeability of hydrophobic membrane filters (2012)

Cleaning & Disinfection

Dirk Nikoleiski
Commercial Food Sanitation L.L.C., Germany
E-Mail: dirk.nikoleiskiProtected mail-address@cf-san.com
Phone: +49 8025 4099902

The experts team is currently working on a new guideline draft.

Cleaning in Place

Hein Timmerman
Diversey, Belgium
E-Mail: hein.timmermanProtected mail-address@diversey.com
三级小说Phone: +32 495 59 17 81

The experts team is currently working on a new guideline draft.

Cleaning Validation

Hui Zhang
Unilever, The Netherlands
E-Mail: hui.zhangProtected mail-address@unilever.com
Phone: +31 10 4 60 63 05

Published Guideline:
Doc. 45 - Cleaning Validation in the Food Industry – General Principles (2016)

Conveyor Systems

Jon Kold
JK Innovation, Denmark
E-Mail: jon.koldProtected mail-address@jk-innovation.dk
三级小说Phone: +45 40 57 13 46

Published Guideline:
EHEDG Doc. 43 - Hygienic Design of Belt Conveyors for the Food Industry (2016)

Design Principles

Dr. Jürgen Hofmann
Ingenieurbüro Hofmann, Germany
E-Mail: jhProtected mail-address@hd-experte.de
Phone: +49 8161 8 76 87 99

Published Guidelines:
EHEDG Doc. 8 - Hygienic Design Principles (2018)
EHEDG Doc. 10 - Hygienic Design of Closed Equipment for the Processing of Liquid Food (2007)
EHEDG Doc. 13 - Hygienic Design of Equipment for Open Processing (2004)
EHEDG Doc. 18 - Chemical Treatment of Stainless Steel Surfaces (2014)
EHEDG Doc. 39 - Design Principles for Equipment and Process Areas for Aseptic Food Manufacturing (2009)

Dry Materials Handling

Gabrie Meesters
TU Delft
The Netherlands
E-Mail: g.m.h.meestersProtected mail-address@tudelft.nl
Phone: +31 15 278 5503

When EHEDG started in 1989 there most of the knowledge available was about liquid handling and liquid processing equipment. Also the design principles were known but not written down as practical guidance documents for engineers in the food industry. In addition, there were no standard test methods to establish the cleanability, pasteurisability and sterilisability of equipment. In the following years a couple of documents about test methods and design principles where published.

In the area of dry particulate materials (powders) there was a need for similar documents: design principles and guidance for hygienic engineering for the safe processing of dry particulate materials.

三级小说The Working Group started in 1998 and has published several documents since then.

Published Guidelines:
Doc. 22 - General hygienic design criteria for the safe processing of dry particulate materials (2014)
Doc. 26 - Hygienic engineering of plants for the processing of dry particulate materials. NOTE: Document was withdrawn in March 2016. Doc. 26 has been integrated into Doc. 44.
Doc. 31 - Hygienic engineering of fluid bed and spray dryer plants (2005)
Doc. 33 - Hygienic engineering of discharging systems for dry particulate materials (2005)
Doc. 36 - Hygienic engineering of transfer systems for dry particulate materials (2007)
Doc. 38 - Hygienic engineering of rotary valves in process lines for dry particulate materials (2017)
Doc. 40 - Hygienic engineering of valves in process lines for dry particulate materials (2010)
三级小说Doc. 41 - Hygienic engineering of diverter valves in process lines for dry particulate materials (2011)

Fish Processing Equipment

Dr. Sanja Vidacek
University of Zagreb, Croatia
E-Mail: svidacekProtected mail-address@pbf.hr
Phone: +385 14 60 51 26

Published Guidelines:
Doc. 49 on Hygienic Design Requirements for Processing of Fresh Fish (2017)

Food Refrigeration

Kostadin Fikiin
Technical University of Sofia, Bulgaria
E-Mail: agfProtected mail-address@tu-sofia.bg
三级小说Phone: +359 2 965 33 22

Foreign Bodies

Olivier Rondouin
DOCEOR, France
E-Mail: rondouinolivierProtected mail-address@yahoo.fr
Phone: +33 782 64 21 69

The experts team is currently working on a new guideline draft.

Heat Treatment

Bengt Eliasson
Tetra Pak Packaging Solutions AB, Sweden
E-Mail: bengt.eliassonProtected mail-address@tetrapak.com
Phone: +46 46 36 55 68

Published Guidelines:
Doc. 1 - Continuous Pasteurization of Liquid Food (2017)
Doc. 6 - Continuous UHT Sterilization of Liquid Food (2017)
Doc. 12 - The continuous or semi-continuous flow thermal treatment of particulate foods (1994)


Hygienic Integration Systems

Dr. Roland Cocker
Cocker Consulting, Ireland
E-Mail: r.cockerProtected mail-address@gmail.com
Phone: +353 21 2 34 82 12

Published Guideline:
Doc. 34 - Integration of Hygienic and Aseptic Systems (2006)


Taco Mets
Van Meeuwen Lubrication BV
E-Mail: t.metsProtected mail-address@vanmeeuwen.com
Phone: +31 622 52 89 52

Published Guidelines:

Doc. 23, Part 1 - Use of H1 & HT1 Registered Lubricants (2018)
三级小说Doc. 23, Part 2 - Production of H1 & HT1 Food Grade Registered Lubricants (2018)

Materials of Construction

Eric Partington
Nickel Institute, United Kingdom
E-Mail: ericProtected mail-address@effex.co.uk
Phone: +44 1285 61 00 14

Published Guideline:
Doc. 32 - Materials of construction for equipment in contact with food (2005)

Meat Processing

Marija Zunabovic
Universität für Bodenkultur Wien, Austria
E-Mail: marija.zunabovicProtected mail-address@boku.ac.at
三级小说Phone: +43 1 47654 75447

The experts team is currently working on a new guideline draft.

Mechanical Seals


Susanne Berezin
Huhnseal AB, Sweden
E-Mail: susanne.berezinProtected mail-address@huhnseal.com
Phone: +46 418 44 99 40

Thomas Böhm
EagleBurgmann Germany GmbH & Co. KG, Germany
E-Mail: thomas.boehmProtected mail-address@eagleburgmann.com
三级小说Phone: +49 8171 23 10 48

Published Guideline
三级小说Doc. 25 - Design of mechanical seals for hygienic and aseptic applications (description, design features and layout (2002)

The Working Group is currently updating Doc. 25.

Packaging Machines

Dr. Peter Golz
VDMA, Germany
E-Mail: peter.golzProtected mail-address@vdma.org
Phone: +49 69 66031656

Published Guidelines:
Doc. 3 - Microbiologically safe aseptic packing of food products (1993). NOTE: Document was withdrawn in April 2018. Doc. 21 has been integrated into Doc. 46.
Doc. 11 - Hygienic packing of food products (1993). NOTE: Document was withdrawn in April 2018. Doc. 21 has been integrated into Doc. 46.
Doc. 21 - Challenge tests for the evaluation of the hygienic characteristics of packing machines for liquid and semi-liquid products (2000). NOTE: Document was withdrawn in April 2018. Doc. 21 has been integrated into Doc. 46.
Doc. 29 - Hygienic design of packing systems for solid foodstuffs (2004)
Doc. 46 - Aseptic and Hygienic Filling Machines - Planning, Installation, Qualification and Operation (2018)

Pumps, Homogenizers and Dampening Devices

Ralf Stahlkopf
GEA Tuchenhagen GmbH, Germany
E-Mail: ralf.stahlkopfProtected mail-address@gea.com
三级小说Phone: +49 4155 49 25 78

Published Guidelines
Doc. 17 - Hygienic design of pumps, homogenizers and dampening devices (2013)


Angelika Ruhm
Freudenberg Process Seals GmbH & Co. KG, Germany
E-Mail: angelika.ruhmProtected mail-address@fst.com
三级小说Phone: +49 6201 80 8919 11

The experts team is currently working on a new guideline draft.


Holger Schmidt
HS Consulting
E-Mail: kontaktProtected mail-address@holgerschmidtconsulting.com

Published Guidelines
Doc. 37 - Hygienic Design and Application of Sensors (2007)

The Working Group is currently updating Doc. 37.


Reinhard Moss
GEA Westfalia Separator GmbH, Germany
E-Mail: reinhard.mossProtected mail-address@gea.com
三级小说Phone: +49 2522 77 25 71

Published Guidelines
三级小说Doc. 42 - Disc Stack Centrifuges - Design and Cleanability (2013)

Tank Cleaning

Bo Boye Busk Jensen

Alfa Laval Tank Equipment A/S, Denmark
E-Mail: bobb.jensenProtected mail-address@alfalaval.com
三级小说Phone: +45 43 55 86 88

The experts team is currently working on a new guideline draft.

Training & Education

Marc Mauermann
Fraunhofer IVV Dresden, Germany
E-Mail: marc.mauermann@ivv-dresden.fraunhofer.de
Tel.: +49 351 4 36 14-38

The members of the EHEDG Training & Education Working Group commit themselves to developing high-quality and practically-oriented training material based on the EHEDG guidelines. The group is a team of experts mainly from the user industries, academia, educational institutes and consultancy with a profound and long-term EHEDG background. The EHEDG WG Training & Education members are the only persons authorized to teach and impart know-how based on the EHEDG guideline portfolio. Their responsibility and tasks are to

  • develop and maintain training modules based on EHEDG guideline criteria
  • develop and maintain quality and process control of the content and format of the training modules
  • develop and maintain required minimum qualifications and skills for the designation of the authorized EHEDG trainers
  • assist with training upon request and when available.

Ulf Thiessen
E-Mail: ulf@thiessen-web.de
三级小说Phone: +49 4542 985 3668

Published Guidelines
Doc. 14 - Hygienic Requirements of Valves for Food Processing (2004)
Doc. 20 - Hygienic Design and safe use of Double-Seat Mixproof Valves (2000)

三级小说The Working Group is currently working on the update of Doc. 14 and 20.

Water Management

Dr. Anett Winkler
Cargill, Germany
E-Mail: anett_winkler@cargill.com
三级小说Phone: +31 20 5 00 60 00

Published Guidelines
Doc. 24 - The prevention and control of legionella spp. (including legionnaires' desease) in food factories (2002). NOTE: Document was withdrawn in March 2018. Doc. 24 has been integrated into Doc. 28.
Doc. 27 - Safe storage and distribution of water in food factories (2004). NOTE: Document was withdrawn in March 2018. Doc. 24 has been integrated into Doc. 28.
Doc. 28 - Safe and Hygienic Treatment, Storage and Distribution of Water in Food and Beverage Factories (2018)


Peter Merhof
GEA Tuchenhagen GmbH, Germany
E-Mail: peter.merhofProtected mail-address@gea.com
三级小说Tel. +49 4155 49 24 02

Published Guidelines
Doc. 9 - Welding Stainless Steel to meet Hygienic Requirements (1993)
Doc. 35 - Hygienic Welding of Stainless Steel Tubing in the Food Processing Industry (2006)

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