The phenomenon you're describing, where ice cubes appear to "weld" or stick together in the freezer, is known as ice cube agglomeration. It can occur due to a few factors:
Moisture: Ice cubes contain a small amount of moisture. When exposed to the freezer's low temperature, this moisture can migrate between the cubes, causing them to stick together. This is more likely to happen if the ice cubes are not stored in an airtight container or if the freezer has significant temperature fluctuations.
Partial melting and refreezing: If the freezer temperature fluctuates or if the ice cubes are in contact with a warm surface, they may partially melt and then refreeze. When the melted ice refreezes, it can act as a "glue" between the cubes, causing them to stick together.
Frost accumulation: Freezers can accumulate frost over time, especially if the door is frequently opened or not sealed properly. Frost can create a thin layer of moisture on the ice cubes, leading to them sticking together.
To prevent ice cube agglomeration, you can try the following:
Store ice cubes in an airtight container or a freezer bag. This helps to minimize moisture exchange and reduces the likelihood of cubes sticking together.
Ensure that the freezer door is properly sealed to prevent warm air from entering, which can cause partial melting and refreezing.
Regularly defrost and clean your freezer to remove any frost buildup.
If you consistently experience this issue despite taking preventive measures, it's worth checking the temperature stability of your freezer. Fluctuating temperatures can contribute to ice cube agglomeration. If the problem persists or worsens, it might be advisable to have a technician inspect your freezer for any potential issues with its cooling system or thermostat.