Cockroaches in the restaurant kitchen: Immediate measures and effective control

Quick overview

In a restaurant kitchen, even a single cockroach usually indicates a hidden nest near heat sources or food residues. First, open food must be secured and affected areas thoroughly cleaned. Sprays should not be used as they can spread the animals and worsen the infestation. Control is usually carried out using bait gel in combination with monitoring traps to determine the infestation. If animals are visible during the day or appear in several areas, a severe infestation is to be assumed and professional treatment is required.

Detect infestation

Cockroaches hide during the day and are usually only discovered late. The type of sighting already provides clues about the severity of the infestation.

Signs Meaning
Animals at night Early infestation
Animals during the day severe infestation
Droppings on devices Near the nest
molting remains Population present
Sweetish odor advanced infestation

Immediate measures

If cockroach infestation is suspected, organizational measures should be taken immediately:

  • Seal food airtight

  • Empty and clean trash containers

  • Remove sources of grease and water

  • Move devices away from walls

  • Mark infestation areas

  • Do not use cleaning chemicals in monitoring areas

Suitable control method

Cockroaches live in colonies within cracks, engine compartments, or wall cavities. Killing individual animals does not eliminate the infestation. Only indirect control is effective, where workers carry the active ingredient into the nest and pass it on within the population. Therefore, bait systems are mainly used in kitchens, placed specifically along the pathways.

Unsuitable methods

The following measures often lead to spreading rather than control:

  • Aerosol sprays

  • Home remedies like vinegar or baking powder

  • Single traps without a system

  • Continuous disinfection without treating the cause

These methods only drive away animals and often cause the infestation to spread to other kitchen areas.

Decision aid

Situation Measure
Single animals at night Monitoring + bait gel
Multiple animals at night Apply bait system over a wide area
Animals during the day professional intervention required
Infestation in multiple rooms Professional company required
Re-infestation after 2–3 weeks Carry out follow-up treatment

When a pest control professional is necessary

Professional treatment is required in cases of:

  • Sightings during the day

  • Infestation in the dining area

  • multiple affected rooms

  • announced hygiene inspections

  • recurring infestation after treatment

Prevention in gastronomy

Continuous control significantly reduces the risk of re-infestation:

  • Check incoming goods

  • Seal gaps and cable entries

  • Use night monitoring

  • Regularly clean floor drains

  • Store food separately

  • Regularly move and clean devices

Suitable product types

Different systems are combined in commercial kitchens:

Bait gel
used for nest control, as active ingredients are carried into the population

Monitoring or sticky traps
enable infestation detection and success monitoring

Sprays
only suitable for targeted applications by professionals

The best products against cockroaches in restaurant kitchens:
Advion Cockroach Gel
NK Cockroach Gel Pro
Catchmaster 100i
Cockroach set small

Data sheets Cockroaches