Pressure Cleaning for Food Production and Manufacturing: A Practical Guide

In food production, cleaning isn’t simply about making a facility look spotless. It’s about controlling contamination, protecting equipment and maintaining consistent hygiene standards without bringing production to a standstill.

From fats and proteins to sugars and biofilms, different food residues/soils require different cleaning approaches. The right pressure washer, water temperature, flow rate, cleaning chemicals and technique can make all the difference.

This guide explains how to approach pressure cleaning in food manufacturing environments and how to choose equipment suited to the job.

What Are You Actually Cleaning?

There’s no one-size-fits-all approach to food-factory cleaning. Different residues respond to different combinations of heat, pressure, water flow and chemicals.

• Fats and oils: Common in abattoirs, poultry plants, bakeries and frying lines. Thermal energy or heat assists in the removal of greasy residues when combined with an appropriate alkaline cleaner.
• Proteins: Found in meat, dairy, fish and egg processing. Excessive heat during the initial rinse can cause protein to coagulate and adhere more firmly to surfaces, so controlled-temperature rinsing is important.
• Sugars and carbohydrates: Common in bakeries, breweries, confectioneries and beverage plants. Warm water and good flow can help dissolve and remove sticky residues.
• Biofilms: Can develop around conveyors, drains and difficult-to-reach areas. These require effective physical cleaning followed by the appropriate chemical cleaning and sanitisation process.

The principle is simple: identify the soil first, then choose the cleaning method.

Choosing the Right Industrial Pressure Washer

The most powerful pressure washer isn’t automatically the best one for a food-processing environment. Equipment needs to match the cleaning task, production environment and hygiene process.

Hot water or cold water?

Cold-water pressure washers are useful for general cleaning, loose debris and applications where heat isn’t necessary.

Hot-water pressure washers add thermal energy, making them particularly useful for greasy and oily residues. However, heat isn’t always beneficial, particularly when dealing with protein soils during the initial rinse.

Explore Goscor Cleaning Equipment’s range of high-pressure washers for industrial cleaning applications.

Pressure vs flow

Bar measures pressure, while litres per minute measures water flow. Both matter.

High flow helps flush loosened soil away, while excessive pressure can damage seals, bearings and sensitive components. It can also increase splash and aerosol generation. The right combination depends on the surface, soil and equipment being cleaned.

Electric vs combustion-powered equipment

Electric pressure washers are generally better suited to enclosed production areas because they don’t produce combustion exhaust where food is being processed. Petrol or diesel equipment can be appropriate for external applications such as loading bays, yards, waste areas and fleet washdowns, provided site requirements are met.

Goscor Cleaning Equipment for Food and Manufacturing Cleaning

Industrial food-production cleaning demands equipment that can handle frequent use and demanding conditions. At Goscor Cleaning Equipment, we supply professional industrial pressure washers and a wide selection of models with features like ceramic pistons, low-speed motor pumps and Delayed Total Stop (DTS) systems designed to reduce pump operation when the trigger is released.

A 5-Step Food Factory Pressure Cleaning Process

Pressure washing should form part of a documented cleaning and sanitation procedure. Here is our recommended five step cleaning process:

1. Remove dry debris

Start by removing bones, packaging, food debris and other solid waste using suitable brushes, scrapers or industrial vacuums. Don’t use a high-pressure jet to push solid waste into drains.

2. Pre-rinse

Use controlled pressure and an appropriate water temperature to loosen surface soil. When cleaning protein-heavy areas, follow instructions as specified by the chemical manufacturer and site hygiene procedure of the particular site.

3. Apply cleaning chemicals

Use the appropriate food-industry detergent and application equipment. Allow sufficient dwell time for the chemical to break down the soil, following the manufacturer’s instructions.

4. Pressure wash

Use the pressure and flow combination appropriate for the surface and soil. Wide-angle fan nozzles can provide effective coverage while reducing the concentrated impact of narrow jets. Work systematically from cleaner, higher areas towards lower areas to minimise recontamination.

5. Sanitise and dry

After cleaning and rinsing, apply the appropriate approved sanitiser for the intended application according to the facility’s hygiene programme. Surfaces should be left in the condition specified by the site’s cleaning procedure, with unnecessary standing water avoided.

Managing Aerosols and Cross-Contamination

• High-pressure cleaning can move contamination as well as remove it. In food-production environments, that makes spray control and zoning particularly important.
• Avoid narrow, concentrated jets, or pencil jets, in food-contact areas. Wider fan patterns can provide more controlled cleaning, depending on the application. 
• Cleaning teams should also follow the facility’s zoning and colour-coding systems. 
• Keeping equipment and accessories separated between raw-product and finished-product areas helps reduce the risk of transferring contamination between zones.

Why Choose Goscor Cleaning Equipment?

We have been operating in South Africa since 1984 and form part of the Goscor Group. Our cleaning portfolio extends beyond pressure washers, with equipment from brands including Portotecnica, Tennant and Delfin. This allows our business to look at pressure cleaning alongside floor care and industrial vacuuming as part of a broader cleaning operation.

Local technical support, servicing, and access to parts are also important considerations for facilities where cleaning equipment is part of daily production. If you’re reviewing your cleaning operation or need equipment for a specific application, request a quote from us today.

Clean Smarter With the Right Equipment

Effective food-factory cleaning isn’t about using the highest pressure or hottest water available. It’s about matching the equipment and cleaning method to the soil, surface and hygiene process.

With the right approach, industrial pressure washers can become a powerful part of a structured cleaning programme, helping food and manufacturing facilities maintain demanding hygiene standards while protecting equipment and helping minimise cleaning-related downtime.

Contact us today for advice on the right cleaning programme including the best equipment for your needs.

FAQs

What pressure is recommended for food-processing equipment?

There isn’t one universal pressure setting. The correct pressure and flow depend on the soil, surface, equipment and cleaning procedure. Excessive pressure can damage components and increase splash or aerosol generation.

Why is hot water useful for some food soils but not others?

Heat can help loosen fats and oils, but excessive heat during the initial cleaning of protein soils can cause them to coagulate and adhere more firmly. Temperature should therefore be selected according to the soil and cleaning process.

Can standard outdoor pressure washers be used inside a food plant?

Not automatically. Equipment used indoors should be suitable for the environment, power supply, chemical exposure and hygiene requirements. Electric equipment is generally preferable in enclosed areas because it doesn’t produce combustion exhaust.

When should you hire rather than buy?

Hiring can make sense when equipment is needed temporarily for seasonal demand, planned shutdowns, deep cleaning or emergency requirements. 

How do pressure washers help with biofilms?

Pressure provides mechanical cleaning action that can help remove soil and disrupt biofilms. However, effective biofilm control requires a complete cleaning and sanitisation process, not pressure washing alone.

Why choose Goscor Cleaning Equipment for industrial high-pressure washers in South Africa?

We combine industrial cleaning equipment with local support and a wider cleaning portfolio. Our range includes Portotecnica pressure washers alongside Tennant and Delfin equipment, with options to purchase or hire depending on operational requirements.