November 24, 2021

The Rolex of Cooling

Norway
Aquaculture
Onboard
Onshore
Other
Pelagic fish
Salmon
Whitefish 
Ice-free success with Mowi's sub-chilling system GIF

Mowy’s factory manager dubs the RoteX Sub-chilling system the Rolex of cooling in an interview with iLaks.no

Mowi, the world’s largest producer of Atlantic salmon, decided to invest in the innovative and iceless SUB-CHILLING™ system from KAPP Skaginn in May 2020. Less than a year later the system was up and running in Mowi’s facility in Herøy, Norway. The facility is the largest salmon slaughterhouse to date that uses the patented cooling technology to deliver quality, freshness, and sustainability to its customers around the globe.

Mowi Adopts KAPP Skaginn SUB-CHILLING™ System — the ‘Rolex of Cooling’


Making headlines

iLaks.no, Norway’s most read aquaculture-news site recently did a feature on Mowi’s new SUB-CHILLING™ system, where factory manager Gunnar Hamarsland declared his satisfaction with the system, describing the results as fantastic: “To put it metaphorically, the tank is a RoteX, but I have named it the Rolex,” he said to journalist Steve Hernes.


Iceless sub-zero chilling with a 100 cubic meter RoteX tank

The heart of the SUB-CHILLING™ system at Mowi’s facility is a 100 cubic meter RoteX tank designed to keep fish chilled, ice-free and fresh for longer without freezing the product. Utilizing saltwater that doesn’t freeze at 0° the system turns the fish itself into the cooling refrigerant. The fish stays cool for longer without the need for ice, maintaining better product quality and extending shelf life by up to 7 days.


Shipping more products in each trailer

The lack of ice not only contributes to improved product quality but also plays an important role in improving the sustainability of large and small operations and delivering significant savings in shipping. iLaks.no reports that the weight of ice in a single semi-trailer can be up to 4 to 5 tons. By removing the need for ice more products can be shipped for the same price.


Scaling success to reach 100% of production

So far, Mowi has delivered over 100 tons of fish using far less ice than before to customers in Europe and Asia as part of the system’s testing phase: “Our goal is to do this on a much larger scale. So far, we have run this as separate orders, where we do our tests and measurements here, while the customer reports the status of the fish on arrival,” said production manager Tom Leirvik to iLaks.no, noting that so far the feedback they have received has been very positive. “The experiments we have done since March have confirmed the theory itself, that it is fully possible [to ship fresh fish without ice]. We intend to run this on 100% of our production,” added Hamarsland.


Up and running after 3 weeks

The installation took around three weeks to complete and included extensive upgrades and improvements to existing systems at the facility. A system for mixing salt and water was installed with 700 meters of stainless-steel pipes and 125 remote-controlled valves. “We worked hard for three weeks to get the system up and running. This was an important milestone for us since Mowi is a large and forward-looking company seeking to reduce their carbon footprint and optimize their operations along the way, using our SUB-CHILLING™ technology,” explains Magni Veturliðason, General Manager of KAPP Skaginn AS, Norway.


Better quality with faster ROI

KAPP Skaginn’s SUB-CHILLING™ system is suitable for a range of applications both onboard and on-land and can be configured for a wide variety of species. Tried and tested by whitefish and salmon producers in Iceland and Norway, the system has proven to deliver quality, freshness, and a high return on investment. As the seafood industry in general and salmon in particular, continue to grow in the coming decades, SUB-CHILLING™ is set to play an important role in reducing transport costs, improving shelf life and preserving quality and leading the way to a more sustainable industry.

KAPP Stories

Clear all
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Clear all
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Seafood Expo North America 2026

March 15–17, 2026 · Boston, USA

Thomas M. Menino Convention & Exhibition Center

Where the Cold Chain Never Breaks

KAPP will be exhibiting at Seafood Expo North America & Seafood Processing North America, the leading seafood industry event in North America.

Thousands of seafood professionals gather in Boston each year to connect, exchange ideas, and explore the latest innovations in processing, packaging, and technology.

Join us to discover how KAPP’s chilling, freezing, and processing systems protect product quality and extend shelf life. From the moment seafood is harvested until it reaches the consumer.

Innovation That Protects Quality

KAPP designs and builds advanced systems that ensure precise temperature control and uncompromised product integrity.

Our solutions are trusted worldwide for their efficiency, reliability, and sustainability across seafood, aquaculture, and food-processing industries.

Discover our key technologies:

  • OptimICE® Liquid Ice System – Rapid, energy-efficient cooling that keeps seafood at −0.5 °C / 31.1 °F without freezing.
  • RoteX™ Sub-Chilling™ & Thawing – Patented systems for sub-zero, no-ice chilling (down to −1 °C / 30.2 °F) and precise low-temperature thawing.
  • KAPP Skaginn Freezing Solutions – IQF tunnel and plate freezers operating at −36 °C / −33 °F for maximum yield and product integrity.
  • Kami Tech Systems – Stainless-steel and aluminum food-processing equipment and vessel maintenance, built at Pier 90, Seattle.

Meet the KAPP Team

With headquarters in Iceland and production in Seattle, KAPP delivers chilling, freezing, and processing systems backed by 90 years of engineering excellence.

Our global team provides complete service and support — ensuring the cold chain never breaks from sea to store.

Booth: TBA

March 15–17, 2026

Thomas M. Menino Convention & Exhibition Center, Boston USA

Website: seafoodexpo.com/north-america

This page will be updated.

Date:
March 15, 2026
Region:
North America
Industry

Pacific Marine Expo 2025

November 20–22, 2025 · Seattle, USA

Lumen Field Event Center

www.pacificmarineexpo.com

Where the Cold Chain Never Breaks

KAPP will be exhibiting at Pacific Marine Expo 2025, the largest commercial marine trade event on the U.S. West Coast.

Join us in Seattle to explore how KAPP’s refrigeration and food-processing technologies are shaping a more sustainable and efficient future for the marine and seafood industries.

Together with our team at Pier 90, Seattle, we deliver advanced systems that maintain product quality, optimize energy use, and ensure the cold chain never breaks — from catch to consumer.

Innovation That Delivers Efficiency

Learn how KAPP’s combined expertise is driving cutting-edge solutions for the North American market.

Our portfolio integrates decades of engineering excellence from Iceland and Seattle, offering systems designed to improve yield, quality, and environmental performance.

Discover our technologies:

  • OptimICE® Liquid Ice System – Rapid, efficient cooling that keeps seafood at −0.5 °C / 31.1 °F without freezing.
  • RoteX™ Sub-Chilling™ & Thawing – Precise sub-zero chilling and controlled thawing that protect quality and extend shelf life.
  • IQF Tunnel & Plate Freezers – Compact, energy-efficient freezing systems for maximum yield and product integrity.
  • Kami Tech Solutions – Stainless-steel and aluminum processing equipment and vessel services from Pier 90, Seattle.

About Pacific Marine Expo

Each year, thousands of commercial mariners from across the West Coast and Alaska gather in Seattle to explore new technologies, gear, and innovations.

The expo features hundreds of exhibitors, a three-day education program, and networking events — bringing together the people who power the maritime and seafood industries.

Booth #639

November 20–22, 2025

Lumen Field Event Center, Seattle, WA

Date:
July 26, 2025
Region:
Seattle, Wasthington, United State
Industry
Clear all
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
A stainless-steel OptimICE® slurry ice machine displayed next to a teal banner reading “Data Doesn’t Lie: Why Fishermen Need to Rethink Chilling Systems – Performance Backed by Proof,” with the KAPP Skaginn Kami Tech logo.
A fishing vessel sailing on the ocean next to a teal banner that reads “Recent Research Reinforces: The Cold Chain Starts Onboard – Temperature Control from Deck to Dock,” with the KAPP Skaginn Kami Tech logo.
Slurry ice being poured into a tub filled with fish
Slurry ice chilling fish onboard with water flowing from a hose, alongside KAPP branding and the text “What’s Killing Your Catch Value? Science Says It’s Temperature. Smarter Chilling. Better Seafood.”
Picture of a tub handling system
Increased automation and production capacity GIF
Eskja pelagic plant to maximize its processing capacity GIF
Growing demand for IQF tunnel freezer GIF
Going the distance with the new ValuePump system GIF
Ice-free success with Mowi's sub-chilling system GIF
RoteX on-board bleeding and chilling system ensure supreme product handling GIF
constant Flexible processing deck that ensures product quality GIF
Sustainable and economical cooling solution
Ecofive Ship