Fire Protection Systems for the Food Industry

Omnifire provides specialized fire safety solutions for food factories, cold storage
warehouses, commercial kitchens and food processing facilities.

Fire Protection Systems for the Food Industry

Modern food industry projects combine multiple operational environments within a single production chain, and each area requires a different fire protection strategy based on its operating conditions, temperature, equipment, and fire risks.

Food Processing Workshops

Cold Storage Warehouses

Commercial / Central Kitchens

Packaging Areas

Frying Production Lines

Food Warehousing

Backed by decades of industrial project experience in China’s rapidly developing manufacturing sector, Omnifir has participated in various food industry fire protection projects covering production workshops, cold chain storage, kitchen facilities, packaging areas, and industrial warehousing environments.

 

The food processing industry typically includes multiple operational zones with very different fire safety requirements.


Application Area
 
Typical Fire Risks
 
Fire Protection Focus
Food Processing WorkshopsElectrical overload, machinery overheating, combustible dustWet sprinkler systems, smoke detection, electrical fire protection
Cold Storage Warehouses
 
Low temperatures, concealed fire spread, refrigeration system risks
 
Early smoke detection, dry pipe systems, anti-freezing protection
Commercial / Central Kitchens
 
Grease fires, cooking oil ignition, exhaust duct fire spread
 
Automatic kitchen suppression systems
Packaging Areas
 
Combustible packaging materials, conveyor systems
 
 
Automatic alarm and sprinkler protection
Frying Production Lines
 
 
High-temperature oil operations
 
 
Localized suppression and heat detection
Food Warehousing
 
 
High storage density, electrical equipment
 
 
Fire compartmentation and sprinkler coverage

Fire Protection Solutions

Data center fire protection systems consist of three core subsystems: detection, suppression, and system integration, ensuring full-process protection from early warning to rapid response.

1. Automatic Fire Alarm System

 

Food industry facilities require different fire detection technologies depending on environmental conditions.

 

Besides standard smoke and heat detectors used in conventional production areas, cold storage facilities often require aspirating smoke detection systems. These systems continuously sample air particles and maintain reliable sensitivity even under low-temperature conditions where conventional detectors may become less effective.

2. Fire Suppression Systems

 

Conventional sprinkler systems are widely used in food workshops and kitchen environments. However, refrigerated storage projects require additional anti-freezing protection and low-temperature engineering design.

Key considerations include:

 

    • Pipe insulation protection
    • Anti-freezing system design
    • Prevention of frozen pipelines
    • Protection against sprinkler head blockage or damage

 

These measures help ensure reliable system operation under cold storage conditions.

3. Fire Compartmentation Design

Fire compartmentation plays an important role in food facility fire safety.

 

Based on project experience within the food industry, Omnifir designs fire separation layouts according to operational zones and production risks. Through fire-rated walls and compartment barriers, fire and smoke can be physically contained within designated areas to reduce large-scale fire spread across the facility.

potato processing line cleanroom

Project Case -- Qingdao Food Processing Cold Storage Project

Project Overview

This food processing and cold chain storage project in Qingdao, China consists of five floors above and below ground level, with a total construction area exceeding 18,000m² and a Class II fire resistance rating.

The project included:

    • Fire water supply systems
    • Sprinkler systems
    • Pump room systems
    • Automatic fire alarm systems

One of the major engineering challenges involved the frozen storage rooms located on Levels 1 and 2, operating at temperatures as low as -38°C. The combination of extremely low temperatures and high moisture conditions created significant reliability challenges for conventional fire detection systems.

Solution

To address this issue, Omnifir designed and implemented an aspirating smoke detection system based on advanced optical and electronic sensing technology. The system continuously analyzes airborne particles in real time and can accurately distinguish fire smoke particles from dust and water vapor with similar particle sizes.

The Aspirating Smoke Detection System

Key Highlights

This solution enables very early fire warning before visible smoke accumulation occurs, while overcoming the reliability limitations of traditional smoke detectors in low-temperature environments. The system provided high sensitivity, strong operational reliability, and reduced maintenance requirements while fully complying with applicable fire safety standards and the client’s specialized operational requirements.

Project Value

By implementing an aspirating smoke detection system, the project achieved highly sensitive early fire warning while overcoming the reliability limitations of conventional detectors in refrigerated storage conditions.

Frequently Asked Questions

Common questions about fire protection for food processing, cold storage, and commercial kitchens

What fire protection systems are required for a food processing facility?
A food processing facility typically requires three integrated fire protection systems: automatic fire alarm and detection (smoke and heat detectors calibrated for cold, ambient, and hot environments), fire suppression systems (water-based sprinklers for warehouses, wet chemical systems for commercial kitchens and frying lines, and gas-based systems for electrical rooms), and fire compartmentation design (fire-rated walls, smoke isolation, and cable penetration sealing between processing zones). The specific configuration depends on the production layout, temperature environments (ambient, refrigerated, and freezing), and local fire code requirements.
How does cold storage fire protection differ from standard warehouse protection?
Cold storage and freezer warehouses present unique challenges because standard sprinkler pipes can freeze and smoke detectors operate unreliably at sub-zero temperatures. For cold storage, dry-pipe or pre-action sprinkler systems are typically used — these keep the pipes charged with compressed air instead of water, releasing water only when a fire is confirmed. Detection often uses air-sampling (aspirating) systems like VESDA, which draw air through piping to a centralized detector located outside the cold zone. Additionally, insulation materials used in cold storage panels must meet fire-rated specifications to prevent rapid flame spread.
What is the best fire suppression method for commercial kitchens?
Commercial kitchens — especially those with deep fryers, woks, and open-flame grills — require wet chemical fire suppression systems conforming to UL 300 / NFPA 17A. These systems are installed directly in the exhaust hood and discharge a fine potassium-based chemical mist that cools hot surfaces, saponifies burning grease into a non-flammable soap layer, and simultaneously cuts off the gas or electric supply to cooking equipment.

Warning: Water-based sprinklers are NOT appropriate for kitchen grease fires — water spreads burning oil and intensifies the fire.
Why is fire compartmentation important in food factories?
Food processing facilities often combine multiple environments — cold storage, ambient production, frying lines, and packaging — within a single connected building. Fire compartmentation (fire-rated walls, automatic fire shutters, and smoke isolation systems) prevents a fire in one zone from spreading to adjacent areas. This is especially critical for production lines with combustible materials (cooking oils, packaging films, cardboard stock) and for cold storage areas where evacuation may be delayed. Proper compartmentation allows other production zones to remain operational during a localized fire incident, protecting both life safety and business continuity.
What international standards apply to food industry fire protection?
Key international standards applicable to food processing fire protection include:

• NFPA 13 — sprinkler system design and installation
• NFPA 17A — wet chemical kitchen suppression systems
• NFPA 61 / NFPA 654 — dust explosion prevention in food processing
• NFPA 72 — fire alarm and detection systems
• NFPA 96 — commercial cooking ventilation and fire protection
• NFPA 101 — life safety and evacuation

In China, GB 50016 (Code for Fire Protection Design of Buildings) covers facility-level requirements, GB 50084 applies to automatic sprinkler systems, and GB 51309 covers emergency lighting. Cold storage facilities must consider additional requirements for insulation material fire ratings (FM Global 8-29) and low-temperature detection system reliability.
How often should fire protection systems in a food factory be inspected?
Fire protection systems in food processing environments should be inspected on a semi-annual basis at minimum. Specific schedules:

• Commercial kitchen suppression: monthly visual checks + semi-annual professional service
• Sprinkler systems: annual flow tests + internal pipe inspection every 5 years (NFPA 25)
• Cold storage detection: quarterly checks due to harsh sub-zero operating conditions
• Fire alarm panels and detectors: annual sensitivity calibration and functional testing

Omnifir provides maintenance programs covering all system types: alarm panel testing, detector sensitivity calibration, sprinkler valve function tests, suppression system agent condition checks, and emergency lighting battery inspections.