Why do some ice creams develop ice crystals and lose their creaminess?
The formation of ice crystals in ice cream is a common problem in professional settings such as ice-cream parlours, restaurants and other venues in the HORECA sector. As well as affecting the texture, it also compromises the perceived quality of the product and the consumer experience.
This phenomenon is directly linked to temperature fluctuations and to the way in which products are stored and preserved.
What causes ice crystals to form?
Ice crystals form when there is instability in the storage temperature. Small fluctuations cause some of the water in the ice cream to refreeze, resulting in visible crystals.
The most common causes include:
- Temperature fluctuations in refrigeration equipment
- Frequent opening of doors
- Inappropriate or prolonged storage
- Freezing and partial defrosting of the product
The impact on the quality of the ice cream
The presence of ice crystals significantly alters the texture of the product, making it less creamy and more grainy.
Consequences:
- Loss of creaminess and softness
- Change to the original texture
- A decline in the perception of quality
- Lower end-customer satisfaction
The role of temperature in conservation
Temperature stability is the most critical factor in maintaining the quality of ice cream. Even slight fluctuations can compromise the product’s structure.
In professional settings, factors such as:
- Overloaded equipment
- Inadequate ventilation
- Inadequate maintenance
- Intensive use whilst on duty
may contribute to temperature variations.
How to prevent ice crystals from forming
To maintain the quality of the ice cream, it is essential to ensure stable storage conditions:
- Maintain a constant temperature in the equipment
- Avoid opening doors unnecessarily
- Ensure that storage is organised correctly
- Carry out regular preventive maintenance
These practices help to preserve the product’s original texture and quality over time.
The formation of ice crystals in ice cream is, in most cases, the result of thermal instability and inappropriate storage practices. Ensuring a stable, controlled temperature is essential for maintaining the creaminess and quality of the product.
At JIMO, we develop professional refrigeration solutions that ensure thermal stability, efficiency and performance in highly demanding HORECA environments.
