Introduction
The Glasslock 18-Piece Assorted Oven Safe Container Set offers a versatile solution for food storage. These containers are designed for use across various kitchen appliances, including the microwave, freezer, dishwasher, and oven. Constructed from natural components like silica, soda ash, and limestone, Glasslock containers are eco-friendly, recyclable, BPA-free, and do not contain harmful environmental hormones. The easy-latching lids ensure an airtight and leak-proof seal, providing convenience for storing food while being odor-free and stain-proof.

Image: A comprehensive view of the Glasslock 18-Piece Assorted Oven Safe Container Set, showcasing various rectangular, square, and round containers with clear glass bodies and light-colored lids, some filled with fresh produce and pasta, arranged on a granite countertop.
Package Contents
This 18-piece set includes 9 glass containers and 9 matching lids, offering a variety of sizes and shapes to accommodate diverse storage needs:
- Rectangular Containers: 1 x 6.3 cup, 2 x 3.5 cup, 1 x 1.6 cup
- Square Containers: 1 x 3.3 cup, 1 x 1.5 cup
- Round Containers: 1 x 3.1 cup, 1 x 1.6 cup, 1 x 0.7 cup

Image: Several Glasslock containers, including rectangular and square shapes, stacked neatly on a kitchen counter. The clear glass allows visibility of the contents, and the blue-rimmed lids are securely latched.
Setup
Before first use, wash all glass containers and lids with warm, soapy water or place them in the dishwasher. Ensure all components are thoroughly dry before storing or using.
Operating Instructions
Sealing and Opening
To seal, align the lid with the container and press down firmly on all four latches until they click into place. This creates an airtight and leak-proof seal. To open, gently lift each of the four latches and then remove the lid.
Microwave Use
Glasslock containers are microwave safe. To heat food in the microwave, remove the lid before placing the glass container in the microwave. The lids are made of polypropylene and are not microwave safe.
Oven Use
The glass containers are oven safe. Remove the lid before placing the glass container in the oven. The lids are made of polypropylene and will melt if exposed to oven temperatures.
Freezer Use
Glasslock containers are freezer safe, allowing for convenient storage of frozen foods.

Image: An arrangement of Glasslock containers on a kitchen counter, showcasing different sizes and shapes filled with various foods such as pasta, cherry tomatoes, broccoli, and carrots, highlighting their utility for meal preparation and storage.
Maintenance and Care
Cleaning
All glass containers and lids are dishwasher safe. For best results and to ensure thorough cleaning, especially of the silicone seal, it is recommended to occasionally remove the silicone gasket from the lid. This allows for cleaning underneath the seal to prevent any residue buildup. The gasket can be reinserted easily after cleaning.
Stain and Odor Resistance
The glass construction of these containers makes them highly resistant to stains and odors, ensuring your food tastes fresh and containers remain clear over time.
Storage
The containers are designed for efficient storage. Similar shapes and sizes can be nested within each other when not in use, helping to save cabinet space. The lids can also be stacked separately or placed on top of nested containers.
Troubleshooting
Lids are difficult to close or open
If the lids are stiff or difficult to snap on, ensure the silicone gasket is properly seated in the lid. Over time, the silicone may become less flexible; gentle manipulation or warming slightly can help. If the issue persists, check for any food debris caught in the seal.
Leakage
If a container leaks, verify that the lid is correctly aligned and all four latches are securely fastened. Also, inspect the silicone gasket for any tears, damage, or improper seating, as this can compromise the seal.
Specifications
- Product Dimensions: 8.5"L x 6.5"W x 3.5"H
- Special Features: Microwave Safe, Airtight, Leak-Resistant
- Container Shape: Rectangular, Round, Square
- Closure Type: Snap
- Dishwasher Safe: Yes
- Material Type Free: BPA Free
- Item Weight: 10 Pounds (for the set)
- Product Care Instructions: Oven Safe (glass only)
- Item Volume: 1000 Milliliters (largest container)
- Microwaveable: Yes (glass only)
- Manufacturer: GLASSLOCK
- Number of Items: 18 (9 containers, 9 lids)
- Color: Clear
- Material: Glass (containers), Polypropylene (lids)
Safety Information
- Lid Safety: The lids are made of polypropylene and are NOT oven safe. They should be removed before placing glass containers in the oven or microwave.
- Temperature Changes: Avoid sudden and extreme temperature changes to prevent glass breakage. Do not place hot glass directly on a cold surface or vice-versa.
- Glass Durability: While durable, glass can break if dropped or subjected to strong impact. Handle with care.
Product Videos
Product Summary Video
Video: A concise overview of the Glasslock 18-Piece Assorted Oven Safe Container Set, demonstrating its features and various uses in a kitchen setting.
Warranty and Support
For warranty information or customer support, please refer to the manufacturer's official website or contact their customer service directly. Keep your purchase receipt for any warranty claims.