Extended Foster Roll-In Blast Chiller and Freezer Cabinet FAQs
A flash freeze typically uses cryogenic methods like liquid nitrogen to instantly freeze items. In contrast, a blast freeze uses high-velocity cold air (around -30°C to -40°C) to rapidly lower food temperature. Blast freezing is ideal for commercial kitchens aiming to preserve quality and safety. Roll in freezers are used for large volumes of food, reach in cabinet chillers are used for relatively small volumes large volumes.
Yes, food is safe in a blast freezer. Rapid cooling moves food quickly through the “danger zone” (5°C–60°C), reducing the risk of bacterial growth and ensuring compliance with food safety standards like HACCP.
The blast freezer method involves placing food in a high-powered freezer where cold air rapidly circulates, quickly reducing core temperature. This prevents bacterial growth, maintains texture, and locks in flavour and nutrients.
- Chill hot food from 70°C to 3°C in 90 minutes. Better blast chiller like Foster, do it from 90 degrees C
- Avoid overloading
- Use shallow containers for faster cooling
- Ensure proper air circulation
- Regularly monitor and record temperatures for compliance
- Higher upfront equipment cost
- Requires dedicated space
- Needs regular cleaning
- Staff must be trained on proper use
Most blast chillers reduce food temperature from 70°C to 3°C in 90 minutes or less, depending on food type and volume.
No. Freeze drying involves freezing and removing moisture via vacuum sublimation—a completely different process. Blast chillers are designed for rapid cooling or freezing, not moisture removal.
Yes. Clean blast chillers after every use to prevent cross-contamination and maintain hygiene, especially in commercial environments.