The Challenges of Industrial Freezing in Light of COP30 Goals
In a global context where climate action is gaining increasing prominence — as demonstrated by COP30 in Brazil — the industrial freezing sector faces a dual challenge: on one hand, maintaining productivity, product quality, and versatility; and on the other, aligning with decarbonization, energy efficiency, and the reduction of high-impact refrigerants.
In this scenario, Palinox strengthens its commitment to optimized engineering and comprehensive solutions that help clients progress without compromising competitiveness.
Key Industry Challenges
High Energy Consumption
Energy use in freezing processes is driven by several key factors:
Extreme thermal difference
To freeze food, the system must extract large amounts of heat to reach temperatures between –18 °C and –40 °C. The greater the temperature difference between the product and the evaporator, the more energy is required to maintain the process.
Compressor power demand
Compressors are the heart of the refrigeration system and account for most of its electrical consumption. They must compress the refrigerant gas to high pressures so that it can release heat — a highly energy-intensive process.
Defrost cycles
In freezing tunnels and chambers, frost formation on the evaporators reduces heat-exchange efficiency. Regular defrost cycles consume additional (electric or thermal) energy.
Cold losses due to poor insulation or frequent openings
Every time a door is opened, product is loaded, or insulation is sub-optimal, warm and humid air enters the system. This forces the equipment to work harder to restore the set temperature.
Fan and airflow inefficiency
In freezing tunnels, powerful fans are required to circulate large volumes of cold air. If not properly dimensioned or controlled, they can represent a significant energy load.
Outdated design and control systems
Old or poorly designed units, lacking variable control systems, tend to operate at full load even when not necessary, increasing overall energy expenditure.
Compared with continuous freezing tunnels, traditional systems require large volumes of electrical (or thermal) energy to maintain the cold chain, rapidly reduce food temperature, sustain it, and recover after loading/unloading operations — all resulting in a significant carbon footprint.
At Palinox, through an optimized engineering approach, we design lines that minimize thermal losses, optimize the cycle, and guarantee maximum performance per kWh consumed.
Use of High-Impact Refrigerants
Many conventional refrigeration and freezing systems still rely on fluids with high Global Warming Potential (GWP) — such as HFCs (hydrofluorocarbons) — whose leakage or emission has a notable climate impact.
International regulations are increasingly strict, while alternatives such as CO₂ (a “natural” refrigerant with GWP = 1) are gaining ground.
However, the shift to these new technologies introduces challenges in system design, operation, safety, pressure management, and cost. For example, while CO₂ is environmentally attractive, it requires systems adapted to high pressures.
Thus, refrigerant transition remains a key challenge for industrial freezing systems seeking to meet decarbonization and environmental-impact reduction commitments.
Food Waste and Chain Efficiency
A significant portion of food is lost or wasted after harvest due to inefficient logistics, storage, and processing. This waste not only represents product loss but also unnecessary emissions. In freezing lines — such as seafood, fruit, or vegetable processing — proper technologies like IQF freezing enhance quality while preventing losses.
For industrial freezing to align with climate goals, this waste challenge must be addressed through freezing tunnel optimization, yield improvement, and better logistics management.
Adaptation to Stricter Regulations and Standards
With the progress of international agreements (e.g., the Kigali Amendment on HFCs, EU F-gas regulations) and new COP30 targets, the industrial freezing industry must adapt more quickly. This involves compliance with new energy-efficiency standards, emission tracking, refrigerant transition, equipment upgrades, and environmental audits.
For companies in the food and processing sector, anticipation is essential: reaction is no longer enough — a clear technological transition roadmap is required.
Palinox Solutions to Technological and Environmental Challenges
Eco-friendly Refrigerants and Adapted Systems
Palinox designs lines that integrate low-impact refrigerants, building freezing tunnels and refrigeration plants ready for the transition to natural or low-GWP gases. Thanks to its in-house refrigeration engineering department, the company delivers turnkey solutions designed to fit demanding environments while meeting COP30 decarbonization goals.
IQF Freezers and Optimized Freezing Tunnels
Individual Quick Freezing (IQF) and new-generation freezing tunnels represent a qualitative leap in process efficiency. Palinox models — Cyclone, Tornado, Breeze, and Spiroblow — reflect a commitment to compact design, high performance, smart airflow management, robust materials, and ergonomic operation.
Thus, Palinox ensures maximum performance in frozen tons per hour, energy consumption, and product quality — aligning operation with sustainability objectives.
Digitalization, Monitoring, and Customer Service
As part of its philosophy of customer-centered service, Palinox integrates advanced control systems, easy-maintenance design, globally standard components (ensuring replacement anywhere in the world), and customer training for efficient operation.
Additionally, Palinox offers consulting for freezing tunnel optimization, system selection by product type (fish, seafood, meat, vegetables), and post-sale support. The company also integrates remote sensors and control systems that allow diagnostics and maintenance recommendations for equipment, motors, and refrigeration plants — without the need for on-site intervention.
Global Adaptability and Versatility
With a presence in more than 35 countries and over 40 years of experience, Palinox demonstrates that its model is designed to fit diverse geographic, industrial, and regulatory contexts. Its ability to adapt industrial freezing lines, freezing tunnels, and refrigeration systems to local requirements allows clients to operate with global sustainability standards — without losing competitiveness.
Do you want to reduce energy consumption, optimize performance, and move towards more sustainable production?
Let’s talk. At Palinox, we design industrial freezing solutions tailored to your efficiency and decarbonization goals.
Contact our team to start your technological transition today.
