Prevent bag breakage during sterilization

1. **Preventing Soft Can Bursting During Sterilization**

- **Pressure Sterilization and Pressurized Cooling**:

- Pressure is applied during sterilization to prevent bag rupture caused by internal pressure exceeding the bag's capacity.

- Pressurization typically begins at 90°C, balancing heating time and bag safety.

- Sterilization media include high-pressure hot water, steam, and steam-air mixtures, with steam-air mixtures being ideal for soft cans.

- Proper air-to-steam ratio is crucial: too much air reduces heat transfer, while too little air risks bag rupture.

- **Packaging Strength Testing**:

- Tests include split strength, peel strength, burst strength, external pressure strength, puncture strength, and drop strength.

- Seal strength is critical and depends on proper sealing conditions (temperature, pressure, and time) and the absence of contaminants in the seal area.

- Ensuring smooth and consistent seals requires proper bag alignment, sealing machine calibration, and appropriate content volume.