Cleanliness and Hygiene for Walls, Tiles and Machines

Bright tiles and stainless steel characterise the appearance of commercial kitchens. To clean the tiles at the end of a working day, pressure washers can be used in combination with foam nozzles or cup foam lances. With the aid of the appropriate foam cleaning detergents (alkaline/neutral/acidic) and air, which is added at the nozzle, the tools generate foam with the high-pressure jet. The foam is applied from a distance of about three to six feet, working from bottom to top, to make use of the large ejection width. The great thing about this system is that first, you can see where the cleaning detergent has been applied and second, the foam stays in place for longer than a normal cleaning detergent, so the time it has to take effect is increased. However, it is important to use only as much foam as comes into direct contact with the surface you wish to clean. This allows you to work efficiently and avoids the problem of excess foam sliding down the surface due to its own weight, which would cancel out the benefit of the increased time the foam has to take effect. The cleaning process is subsequently carried out from top to bottom.

Alternating between acidic and alkaline foam cleaning products is important in order to reliably eliminate the breeding grounds of microorganisms. The only thing to note when using acidic cleaning agents is that the tile joints must first be rinsed with water. This prevents the acid from soaking in and attacking the grouting.

Cleaning tilting skillets requires pressure washers which allow the user to control the water pressure and quantity via the pressure washer gun. This makes it possible to always work with the appropriate combination, without the dirt splashing back onto the user. Furthermore, as with all electrical fittings, the work must be carried out carefully, with reduced pressure, to protect sensitive electrical equipment from damage.

You can also make machines and kitchen utensils reach the required hygiene levels using steam cleaners. The steam exits the nozzle in very fine droplets at a temperature of 212 °F and a pressure of 45-60 psi, with an acceleration of approximately 105 mph. This means that the steam gets into every crevice and rubber fold that a brush or cloth would struggle to reach. This allows thorough and hygienic cleaning of the edges of dishwasher front panels, as well as the on and off switches on cookers and grooved surfaces. Freezers can be defrosted in considerably less time by introducing steam between the ice and the inside wall. For heavy soiling, industrial steam cleaners also provide the option of using chemicals to pretreat the area before vacuuming the dirty residue back up using the reverse suction function. Furthermore, steam cleaners are equipped with self-rinsing capabilities for the suction hose and suction tube to remove dirt residue.

The floor of a commercial kitchen is a unique challenge. A very high level of surefootedness is required in order to prevent work accidents. If a normal floor offers an anti-slip value of R9, a commercial kitchen must have a value of R11 to R13. The structured tiles also have displacement nubs so that water does not create a risk of slipping. Grease and food residue deposited throughout the working day gets caught between these nubs.

Surface cleaners with a rotating nozzle bar, to which power nozzles are attached in a slightly offset position, apply water to the floor at high pressure and very effectively remove the dirt. The bristle rink prevents the water from spraying onto walls and fittings. Depending on the floor structure, the dirty water either runs toward the drain or is pushed toward the drainage channel using a rubber scraper.

Alongside the surface cleaner, floor scrubbers in the single-disc or roller variety are suitable for floor cleaning. On rough floors, single-disc machines require a high degree of effort as the disc drifts to the right and the user has to continually steer against this. However, roller machines work with counter-rotating rollers; they therefore have neutral movement and are significantly easier to guide. This prevents damage to door frames or edges of built-in cupboards as it is easier to avoid bumping into objects.

Furthermore, their small contact face means that they have high contact pressure and the roller shape of the brush enables excellent deep cleaning, allowing structures and joints to be effortlessly cleaned to the desired level. The rollers clean themselves thanks to their high rotational speed, so the dirt doesn't stick. Walk-behind compact floor scrubbers also have a suction function which reabsorbs the dirty water. The floor dries and can be walked on again immediately.