Introduction
Thank you for choosing the Borosil Blue Universal Glass Lunchbox. This set of borosilicate glass containers is designed for convenient storage, heating, and transport of your meals. Made from durable glass, these containers are a versatile solution for your daily food needs, whether at the office or on the go. This manual provides essential information for the safe and effective use and maintenance of your new lunchbox set.

Image: The complete Borosil Blue Universal Glass Lunchbox set, featuring four transparent glass containers with white lids and a blue insulated lunch bag.
Safety Information
- Handle with Care: Glass containers are fragile. Avoid dropping or subjecting them to sudden impacts, which may cause breakage.
- Temperature Extremes: While borosilicate glass is highly resistant to thermal shock, avoid extreme and sudden temperature changes (e.g., placing a hot container directly into cold water or vice-versa) to prevent cracking.
- Inspection: Before each use, inspect containers for any chips, cracks, or damage. Do not use damaged containers.
- Lid Usage: Lids are made of plastic and are not intended for use in conventional ovens. For microwave use, ensure the lid is not tightly sealed to allow steam to escape.
- Microwave/Oven Safety: The glass containers are safe for microwave and oven use. Always remove or loosen lids when heating food to prevent pressure buildup.
Setup
- Unpacking: Carefully remove all components from the packaging.
- Initial Cleaning: Before first use, wash all glass containers and lids with warm, soapy water. Rinse thoroughly and dry completely.
Operating Instructions
1. Packing Food
- The set includes four containers: two 320ml square containers and two 240ml round containers.
- Use the appropriate container size for your meal portions.
- Ensure food is cooled before sealing with lids to maintain freshness and prevent condensation.
2. Heating Food
- Microwave Safe: Glass containers are microwave safe. Loosen or remove the lid before placing in the microwave to allow steam to escape.
- Oven Safe: Glass containers are oven safe up to 350°C (662°F). Remove plastic lids before placing in a conventional oven.

Image: Visual guide demonstrating the versatility of the Borosil lunchbox set, including carrying the bag, reheating food in a microwave, eating directly from a container, and storing food in a refrigerator.
3. Storing Food
- Freezer Safe: Containers are freezer safe down to -40°C (-40°F). Ensure food is completely cooled before freezing.
- Leak-Resistant Lids: The lids feature a leak-resistant design to keep food fresh and prevent spills during transport.

Image: Demonstration of the leak-proof lid technology, showing a container tilted with liquid inside without spilling, alongside a 'BPA FREE' certification icon.
4. Carrying
- The included lunch bag is designed to comfortably carry all four containers.
- Arrange containers securely within the bag to prevent shifting.
Maintenance
- Dishwasher Safe: The glass containers are dishwasher safe. Place them on the top rack for best results.
- Lid Care: Hand wash lids with warm, soapy water to prolong their lifespan and maintain the seal. Avoid harsh abrasive cleaners.
- Drying: Ensure all parts are completely dry before storing to prevent mold or mildew.

Image: A Borosil glass container positioned in a dishwasher, illustrating its dishwasher-safe feature.
Troubleshooting
Lid difficult to open after heating hot food:
When hot food is sealed in the container, a vacuum can form upon cooling, making the lid difficult to open. To prevent this, always ensure the lid is not tightly sealed when heating food in the microwave. If a vacuum forms, try gently prying up one corner of the lid to release the pressure.
Specifications
| Feature | Detail |
|---|---|
| Material Type | Borosilicate Glass |
| Number of Containers | 4 |
| Container Capacity | 2 x 320ml, 2 x 240ml |
| Included Components | 4 Glass containers, 4 Lids, 1 Lunch Bag |
| Color | Bag: Blue, Container: Transparent |
| Special Features | Leak Resistant, Microwave Safe, Oven Safe, Freezer Safe, Dishwasher Safe |
| Capacity (Total) | 1080 Milliliters |
| Item Weight | 1176 Grams (2.59 pounds) |
| Product Dimensions | 10.63 x 5.51 x 6.81 inches |
| Model Number | ITSQ32RN24UEC |

Image: A graphic illustrating the precise dimensions of the insulated lunch bag and both the square (320ml) and round (240ml) glass containers.

Image: A series of icons highlighting the key features and safety aspects of the Borosil glass containers, including their material, temperature resistance, and cleaning compatibility.
Warranty
This product is covered by the manufacturer's standard warranty. Please refer to the product packaging or the manufacturer's official website for specific warranty terms and conditions.
Support
For any questions, concerns, or assistance with your Borosil Blue Universal Glass Lunchbox, please contact Borosil customer support through their official website or the contact information provided on the product packaging.