AHT EXPERT TALKS

Defrosting is an essential part of commercial refrigeration — but how does it actually work, and why does it matter for energy efficiency, system performance, and food safety?

In this episode of AHT Expert Talk, we explore the science behind defrosting and explain how different defrosting methods influence the performance of refrigeration equipment in food retail.

What you'll learn:

• Why frost forms and how it affects refrigeration performance

• How different defrosting technologies work

• The differences between electric, hot-gas, and off-cycle defrosting

• How defrost cycles influence energy consumption and product temperatures

• Why choosing the right defrosting strategy matters for long-term efficiency

Whether you're a food retailer, refrigeration technician, installer, or industry professional, this session provides practical insights into an often-overlooked aspect of commercial refrigeration.

Smarter defrosting means smarter refrigeration

What are superheat and subcooling – and why do they matter in commercial refrigeration?

Both are fundamental parameters in the refrigeration cycle and can have a significant impact on system performance, energy efficiency and reliability. But what exactly happens when superheat is too high or too low? Why is subcooling important? And what can these values tell us about how well a refrigeration system is operating?

In this episode of the AHT Expert Talk, we break down the technical principles in an easy-to-understand way and connect them to real-life commercial refrigeration.

We cover:

• What superheat and subcooling actually mean
• Where they occur in the refrigeration cycle
• How they are measured and calculated
• Why the correct values matter for system efficiency
• What happens when superheat or subcooling is too high or too low
• How these parameters can help identify refrigeration system problems
• Their impact on compressor operation, energy consumption and system reliability

Whether you work in food retail, refrigeration planning, installation or service, this episode will help you better understand two of the most important parameters used to evaluate refrigeration system performance.

🎧 AHT Expert Talk – practical refrigeration knowledge explained by industry experts.

#AHTExpertTalk #CommercialRefrigeration #Refrigeration #Superheat #Subcooling #FoodRetail #EnergyEfficiency #HVACR

In this episode of AHT EXPERT TALK, we look at ambient temperature and its growing relevance for commercial refrigeration.

We discuss how ambient temperatures have evolved over the last years, why they matter for refrigeration performance, and how they can influence energy consumption, system load, temperature stability, and reliability in food retail environments.

A practical episode for retailers, technical managers, service technicians, installers, and everyone who wants to better understand how real store conditions affect modern refrigeration technology.

In this episode of AHT EXPERT TALK, we take a closer look at remote CO₂ refrigeration systems and explain how they work in a practical and easy-to-understand way.

Together with our experts, we discuss the basic system concept, the role of CO₂ as a natural refrigerant, and the key advantages for food retail applications. We also look at the current state of development, typical use cases, and the types of stores where remote CO₂ systems can be a suitable solution.

The episode is especially relevant for retailers, technical managers, store planners, service technicians, installers, and everyone who wants to better understand modern commercial refrigeration.

Topics covered in this episode include:

• How a remote CO₂ system works

• Key benefits for food retail stores

• Current developments in CO₂ refrigeration technology
• Which store formats can benefit from this solution
• What retailers and service technicians should know before planning, installing, or operating such systems

With this episode, we continue our goal of sharing practical refrigeration knowledge with the market and supporting better-informed decisions in commercial refrigeration.

In this episode we cover the long lasting question if you should add doors to your commercial refrigeration unit. We will explore the purchasing behavior of your customers, the impact on energy efficiency and more.

After that episode you will be able to decide whether

you would like to install doors and what are the positive and negative sides of it.