Dishes sanitization

Dishes sanitization

Some definitions about hygiene

  • CLEANING: The removal of soil particles from surfaces by mechanical, manual or chemical methods
  • SANITIZING: Treatment of a cleaned surface with a chemical or physical agent to destroy disease/spoilage causing organisms. Reduces total vegetative cell population to a safe level
  • DISINFECTING: Destruction of all vegetative state organisms
  • STERILIZING: The complete destruction of all organisms, including spores
  • DIRTY: A surface that is not clean

The sanitation procedures are usually evaluated as a purely visual perception of dirt, in fact there are no scientific standards to measure the effectiveness of the sanitation in relation to the real capacity of the environment to cause, directly or indirectly, pathologies for the users of the sanitized products.

SANITIZATION: second phase of the sanitation process, consisting in the sterilization of a plant or a product of the food industry by means of specific bactericidal substances

For this reason it is necessary to equip oneself with tools that allow to keep the production process under control and to evaluate the final result, deciding whether or not it satisfies the established standards. In this sense, it is necessary to use process indicators for the evaluation of the production process and microbiological result indicators to define the final result of sanitation, that is the hygienic quality of the surfaces tested.

Sanitization of dishes is an important issue, especially today in which the whole world also has to deal with the emergency resulting from the Coronavirus.

What is the coronavirus?

Coronaviruses are a large family of viruses that can cause various illnesses. Usually they cause mild respiratory and intestinal infections in humans. A newly identified coronavirus, SARS-CoV-2, has caused a worldwide pandemic of respiratory illness, called COVID-19.

COVID-19 symptoms include cough, fever or chills, shortness of breath or difficulty breathing, muscle or body aches, sore throat, new loss of taste or smell, diarrhea, headache, new fatigue, nausea or vomiting and congestion or runny nose. COVID-19 can be severe, and some cases have caused death. The new coronavirus can be spread from person to person. It is diagnosed with a laboratory test. It’s crucial to practice good hygiene, respiratory etiquette and physical distancing.

As with all coronaviruses, no particular thermal-resistance is known. It can be assumed that the novel coronavirus is already sensitive to temperatures from 60 °C to 70° C.


Elements of cleaning and sanitizing

The Sinner’s circle is a combination of four factors which contribute to the complete removal of dirt and to the best economic return. Temperature, chemistry, contact time and mechanical power are the factors determining the efficiency of the entire cleaning procedure.

  • Temperature – The effect of hot water (up to 50°C) determines the detergent procedure. Room and workplace temperature also influence the final outcome.
  • Contact time – The time that the chemical requires to work most efficiently on the dirt.
  • Chemistry – It depends on the chemical solution most suitable to the type of dirt to be removed.
  • Mechanical power – It comprises all manual and mechanical actions that remove the dirt.

When altering two or more factors, it is important to ensure the same high standards of performance.

Also water is relevant. Water is needed to dissolve chemicals, transfer heat and also plays an important role in applying mechanical power.

Hygiene and safety regulations

Different regulations depending on specific country are available:

  • DIN – Germany
  • EN – Europe

It happens anyway that, wherever a local regulation is not present, one of these could be required to guarantee an accurate level of hygiene.

The standard regulations are not enough to assure that Covid-19 can be removed according to their prescriptions.

There’s no evidence that Covid-19 is 100% inactivated simply because the coronavirus has a different impact than previous and known viruses. It is necessary to increase the evaluation parameters and find new solutions for hygiene and safety.

Electronic VE dishwashers

Elframo Electronic VE range includes models equipped with the atmospheric boiler (BA). These models integrate the sanitizing function of dishes.

Lavastoviglie BANNER D

It is sufficient to set this option from the control panel to activate the high temperature washing function with the set point of 75°C in the tank and 90°C in the boiler. The high washing and rinsing temperatures, combined with the washing mechanism, the customizable times for each washing cycle and the correct chemicals, contribute to fight viruses, germs and bacteria present on the dishes.

But there is no evidence that this “standard” sanitation cycle is effective in inactivating the Coronavirus. For this reason, Elframo has developed the new Hygiene Plus range.

Hygiene Plus range with “augmented” sanitization cycle – Why it is effective against the coronavirus

  1. Wash and rinse temperatures and contact times are considerated acceptable by DIN 10534. Wash and rinse temperatures are higher than those permitted by DIN 10534. Also the contact time is higher than that one permitted by DIN 10534. Hygiene Plus machines are compliant with German legislation.
  2. According to NFS/ANSI American regulations that are based on the calculation of the HUE (Heat Unit Equivalent) value, the minimum threshold achieved thanks to the “augmented” sanitization cycle is clearly higher than the minimum threshold. Hygiene Plus machines are compliant with American legislation.
  3. The thermo-disinfection process of the dishes associated with the “augmented” sanitization cycle was fully in line with EN 15883 Washing and disinfection equipment”, a reference standard in the medical, veterinary, dental, pharmaceutical markets and also valid in the field of washing and disinfecting dishes and cutlery intended for use, for example, by immunosuppressed patients.
  4. Hygiene Plus dishwashers guarantee 70 °C for 5 minutes on dishes (as per American medical study on Covid-19* – the only one accepted by WHO and national health institutes and organizations).

Hygiene Plus dishwashers are certified for their effectiveness against the SARS-CoV-2

Thanks to external laboratory tests, it has been certified that the new Elframo Hygiene Plus dishwashers ensure maximum effectiveness against viruses, germs and bacteria (included SARS-CoV-2).


Are you looking for more info? Contact us for further details

*Alex W. H. Chin et al. “Stability of SARS-CoV-2 in different environmental conditions“, April 2nd 2020, The Lancet