1. Introduction
Thank you for choosing the Progressive ProKeeper+ Grain Storage Container Set. This set is designed to keep your grains, such as rice, beans, quinoa, and oatmeal, fresh for longer periods. The containers feature an airtight silicone seal, a hinged lid for easy access, and convenient measurement markings. This manual provides essential information for the proper use and care of your new storage containers.
2. Package Contents
- 2 x ProKeeper+ Grain Storage Containers (2.5-Quart capacity each)
- 2 x 1/2-cup Scoops

Image: The ProKeeper+ Grain Storage Container Set, including two containers and two scoops.
3. Setup
- Unpacking: Carefully remove all components from the packaging. Inspect for any damage.
- Initial Cleaning: Before first use, wash the containers and scoops with warm, soapy water or place them in the dishwasher. Rinse thoroughly and allow to air dry completely.
4. Operating Instructions
4.1 Opening and Closing the Lid
- To open, unlatch the metal clasp on the front of the lid and lift the hinged lid upwards.
- To close, press the lid down firmly until the silicone seal engages, then secure the metal clasp. Ensure the clasp clicks into place to maintain an airtight seal.
4.2 Filling the Container
- Fill the container with your desired dry goods, such as rice, beans, or oatmeal.
- The clear plastic allows for easy visibility of contents and remaining quantity.
- Measurement markings on the side of the container indicate volume for convenient tracking.
4.3 Using the Included Scoop
- Each container includes a 1/2-cup scoop for easy portioning.
- The scoop can be stored inside the container for convenience.

Image: Demonstrating the use of the 1/2-cup scoop with green peas.

Image: Demonstrating the use of the 1/2-cup scoop with mixed grains.

Image: The 1/2-cup scoop conveniently stored inside the container.
5. Maintenance and Care
- Cleaning: The ProKeeper+ containers and scoops are dishwasher safe. For best results, place them on the top rack of your dishwasher.
- Hand Washing: If hand washing, use warm, soapy water and a soft sponge or cloth. Avoid abrasive cleaners or scouring pads, which can scratch the plastic.
- Drying: Ensure all parts are completely dry before reassembling and storing food to prevent moisture buildup.
- Microwave Use: These containers are not microwave safe. Do not use them in a microwave oven.
- Temperature: Avoid exposing the containers to extreme temperatures.
6. Troubleshooting
- Lid not sealing properly: Ensure the silicone seal is correctly seated in the lid and free from any food debris. Check that the metal clasp is fully engaged.
- Difficulty opening the lid: The airtight seal can create a strong vacuum. Place a finger on the lip area and gently lift the lid with your other hand to break the seal.
- Container appears cloudy after washing: This can sometimes occur with plastic in dishwashers. Ensure proper rinse aid is used in your dishwasher, or hand wash with warm, soapy water.
7. Specifications
| Model | PKS-2 Grain Container |
| Capacity | 2.5 Quarts per container (Set of 2) |
| Material | Plastic, Silicone |
| Special Features | Airtight, Shatterproof, Dishwasher Safe |
| Included Components | Airtight Lid, 1/2-cup Scoop |
| Microwave Safe | No |
| Product Dimensions (Approximate, per container) | Refer to product packaging for precise dimensions. |
8. Warranty and Support
For warranty information or customer support, please refer to the product packaging or contact Progressive International customer service directly. Keep your purchase receipt for any warranty claims.