How Do They Keep The Ice Frozen In Hockey

1. Cooling systems: Hockey arenas use advanced cooling systems that circulate a mixture of glycol and water through a network of pipes embedded in the concrete slab beneath the ice surface. The system helps maintain a constant temperature and freezes the water into ice.

2. Chilling equipment: Refrigeration units are used to cool the glycol and water mixture before it is circulated through the pipes. These units are located outside the arena and are responsible for removing heat from the glycol mixture, ensuring the ice stays frozen.

3. Insulation: The concrete slab beneath the ice is typically insulated to prevent heat from escaping into the ground. This helps maintain the cold temperature required to keep the ice frozen during hockey games.

4. Air circulation: Powerful fans are strategically placed around the arena to maintain consistent airflow above the ice surface. This helps to cool the ice and remove any moisture or humidity that could compromise its quality.

5. Zambonis: During breaks in the game, Zambonis, ice resurfacing machines, are used to shave the surface of the ice and add a thin layer of water, which then freezes to create a smooth playing surface. This process helps repair any damage caused by the skates and maintains the ice’s integrity.


1. How cold does the ice need to be in a hockey rink?
The ice in a hockey rink is usually kept at a temperature of around 22-24 degrees Fahrenheit (-5 to -4 degrees Celsius).

2. What happens if the ice melts during a hockey game?
If the ice starts melting during a game, it greatly affects the players’ ability to skate and control the puck. The game would be paused until the ice is fixed or replaced.

3. How long does it take to freeze the ice in a hockey rink?
The initial process of freezing the ice in a hockey rink can take anywhere from 48 to 72 hours, depending on the size of the arena and the efficiency of the cooling system.

4. Can the ice surface be too cold for a hockey game?
No, the ice surface cannot be too cold for a hockey game. However, extremely cold temperatures can cause the ice to become brittle and affect its quality, making it more prone to cracking.

5. Why is it necessary to resurface the ice during breaks in the game?
Resurfacing the ice during breaks is necessary to ensure a smooth playing surface for the players. Skates and physical contact may cause scratches or damage to the ice, which can create uneven patches, affecting the game’s speed and players’ safety.

6. How often is the ice resurfaced during a hockey game?
Typically, the ice is resurfaced during every intermission period, which is usually every 20-30 minutes of gameplay. This allows for a fresh and smooth playing surface to be maintained throughout the game.

7. Why is the ice quality important in hockey?
The quality of ice affects the speed and performance of the players, as well as their safety. If the ice is not properly maintained, it can lead to uneven surfaces, resulting in unpredictable bounces and an increased risk of injuries.

BOTTOM LINE: Hockey arenas use advanced cooling systems, insulation, proper air circulation, chilling equipment, and regular ice resurfacing to keep the ice frozen during games. Maintaining a consistent temperature and quality of the ice is crucial for optimal gameplay and player safety.