Hygiene cleaning vs. maintenance cleaning

Optical cleanliness and microbiological hygiene are two different states. This difference is obvious in the pharmaceutical industry and medical technology – but it is systematically underestimated in commercial enterprises, offices, and administrative buildings. With measurable consequences: misclassified cleaning needs, lack of documentation, and incomplete proof chains in case of damage.

Eric Makiesse Eduardo, building cleaning master and certified disinfectant, has been supporting the implementation of hygiene processes in highly sensitive environments for over 20 years. His observation: many companies rely on standard maintenance cleaning in their controlled gray zones, even though regulatory requirements (IfSG, TRBA) and the risk of cross-contamination strictly demand professional disinfection.

What maintenance cleaning provides – and what it does not

Maintenance cleaning has a clearly defined task: it removes visible dirt, dust, and coarse contaminants. The standard is optical cleanliness. The cleaning agents used are commercially available and not intended for germ reduction – nor do they need to be, provided the cleaned surfaces do not require increased hygiene standards.

The problem arises when maintenance cleaning is used in areas that require microbiological hygiene. In sanitary areas, canteens, medical-related rooms, or after contamination events, removing visible dirt is not enough. Pathogenic germs – bacteria, fungi, enveloped viruses – remain active on surfaces even if they appear visually flawless.

“We regularly see objects where maintenance cleaning has been billed as hygiene cleaning for years. The client only notices when a health authority inspects or a damage case occurs.”
Eric Makiesse Eduardo, building cleaning master & certified disinfectant, EME Building Cleaning Stuttgart

Hygiene cleaning: definition, requirements, proof obligation

Hygiene cleaning aims at the demonstrable reduction of pathogenic germs on surfaces and in the room air. It is not an optional addition to maintenance cleaning but an independent service with specific requirements for agents, personnel, and documentation.

The central criterion is the choice of disinfectant. Only preparations listed in the VAH disinfectant list or the RKI list are considered professionally suitable for use. These lists verify products for proven effectiveness against bacteria, yeasts, fungi, and viruses – with defined contact times and concentrations that must be strictly adhered to.

Which areas require hygiene cleaning

The classification of an area as requiring hygiene measures depends not on the size or industry but on the actual contamination risk and the applicable legal regulations.

Areas with increased hygiene needs in commercial properties:

– Sanitary areas and changing rooms – regardless of company size
– Canteens, break rooms, and all areas with food contact
– Medical-related facilities: doctor’s offices, care facilities, pharmacies
– Areas after contamination with bodily fluids or infection events
– Childcare facilities and schools
– Production areas with hygienic requirements (food, pharmaceuticals, medical)

Standard offices are not automatically excluded. High-contact surfaces such as keyboards, door handles, elevator buttons, and communal areas show germ loads that, after illness events or on the order of the occupational health doctor, require targeted hygiene cleaning.

Cross-contamination: the underestimated risk in daily cleaning

Cross-contamination refers to the unintentional transfer of germs from one surface to another – via cleaning tools that are not used area-specifically. In practice, this is the most common mistake in commercial cleaning processes. An optically clean surface can thus become a bridge for germ load, which can cause problems in the next audit or, worse, in the cleanroom batch.

“A cleaning cloth that first cleans the toilet and then the kitchen transmits fecal germs – regardless of whether both surfaces appear visually clean afterwards. Without a color-coding system and clear zone rules, cross-contamination is everyday in almost every facility.”
Eric Makiesse Eduardo, building cleaning master & certified disinfectant, EME Building Cleaning Stuttgart

Effective prevention requires structural measures in the cleaning process:

– Color-coded cleaning cloths per zone (at least three colors: sanitary / kitchen / office)
– Disposable cloths in risk areas – no reuse after contact with contaminated surfaces
– Mopping mop change after each room in hygiene-sensitive areas
– Glove change between zones with different contamination risks
– Written zone plans in the cleaning protocol

Documentation: why it’s crucial in case of doubt

Hygiene cleaning without verifiable documentation is legally worthless. Neither health authorities, courts, nor insurance companies accept oral statements as proof of proper disinfection.

This is not a theoretical risk. Companies in sectors with legal documentation requirements – gastronomy, care, food processing, childcare – must be able to immediately prove during inspections that hygiene cleaning was performed professionally and with listed agents. Without this proof, fines, operational bans, or civil liability threaten.

Minimum content of verifiable hygiene documentation:

– Date, time, and duration of the procedure
– Name and qualification proof of the disinfectant operator
– Used disinfectant with batch number and delivery note
– Concentration and contact time according to VAH / RKI specifications
– Treated surfaces and room areas in square meters
– Signature of the responsible disinfectant operator

Case study: what happens when the boundary is ignored

The following scenarios can be exemplified based on a typical damage case from operational practice – similar to what repeatedly occurs in commercial canteens.

Case study: Canteen of a Stuttgart machinery manufacturing company

Initial situation

A medium-sized machinery manufacturing company with around 120 employees in Stuttgart-Zuffenhausen commissioned an external cleaning service provider for daily cleaning over the years – including explicitly the company canteen. The contract simply mentioned daily cleaning without differentiating between maintenance and hygiene cleaning.

The trigger

In autumn 2023, within three days, 14 employees fell ill with identical symptoms: nausea, vomiting, diarrhea. The Stuttgart health department initiated a routine inspection. Swab samples from the canteen work surfaces showed a germ load well above permissible limits – including coliform bacteria on the cutting board and coffee machine.

What the inspection uncovered

The cleaning service used common all-purpose cleaners – not a single VAH-listed disinfectant was used. No cleaning documentation existed. The cleaning staff used the same cloths for toilet areas and kitchen work surfaces – without a color-coding system or training. The scope of work was simply maintenance cleaning – in an area that legally required hygiene cleaning.

The consequences

The health department ordered an immediate closure of the canteen for four working days. The company had to hire a professional hygiene cleaning firm to disinfect all surfaces and submit a new cleaning concept with verified documentation. The economic damage – operational interruption, emergency service, regulatory requirements – amounted to over 8,000 euros according to internal estimates. Additionally, there was damage to reputation within the workforce.

What was changed afterwards

The company completely revised the cleaning contract. The canteen was explicitly designated as a hygiene area. Since then, only VAH-listed disinfectants are used, with a color-coding system with three zones (kitchen / sanitary / office) and comprehensive hygiene documentation with the signature of the disinfectant operator. The five control questions at the end of this article – had the company asked them before the incident, the damage could have been avoided.

Five self-assessment questions for commercial enterprises

The following checklist helps facility managers and operations managers assess their own cleaning standards:

– Are hygiene-sensitive areas explicitly designated as hygiene cleaning – not maintenance cleaning – in the cleaning contract?
– Does the service provider demonstrably work with VAH- or RKI-listed disinfectants?
– Is there verifiable documentation of each hygiene cleaning that can be immediately presented during inspections?
– Are color-coding systems, zone plans, and cross-contamination prevention written into the cleaning protocol?
– Does the service provider have verifiable qualifications – for example, as a certified disinfectant operator?

Anyone answering “No” to even one of these questions should review the existing cleaning contract before the health department or a liability case does so.

Further sources

VAH disinfectant list: https://www.vah-online.de/vah/listen-und-berichte/desinfektionsmittelliste
RKI – disinfectants: https://www.rki.de/DE/Content/Infekt/Krankenhaushygiene/Desinfektionsmittel/desinfektionsmittel_node.html

About the author: 

Eric Makiesse Eduardo manages EME Building Cleaning in Stuttgart. As a certified disinfectant and building cleaning master, he has been involved in hygiene projects in commercial properties, property management, and medical facilities for over 20 years. His focus is on implementing verifiable hygiene processes and advising facility managers on documentation obligations and disinfection standards.