To clean a bamboo lid bento box, you can follow these general steps:

1. Remove any food remnants: Before cleaning, ensure that all leftover food is removed from the compartments and the lid. Discard any food waste properly.

2. Hand wash the bamboo lid: The bamboo lid should be hand washed to avoid damage. Use a mild dish soap and a soft cloth or sponge to gently clean the lid's surface. Avoid immersing the lid in water for an extended period or submerging it completely. Rinse it thoroughly and wipe it dry with a clean cloth.

3. Clean the compartments: Depending on the materials used for the compartments (such as stainless steel or plastic), they may be dishwasher-safe or require hand washing. If dishwasher-safe, separate the compartments and place them in the dishwasher according to the manufacturer's instructions. Otherwise, hand wash them using a mild dish soap and a soft sponge or brush. Rinse them thoroughly and allow them to air dry.

4. Dry thoroughly: After cleaning, ensure that all parts, including the bamboo lid and compartments, are completely dry before reassembling the bento box. Moisture trapped in the bamboo lid or compartments may lead to mold or deterioration.

5. Reassemble the bento box: Once all the components are dry, reassemble the bento box by placing the compartments back into the main container. Make sure they fit securely.

It's important to note that specific care instructions may vary based on the manufacturer's recommendations and the specific materials used in your bamboo lid bento box. Always refer to the provided instructions for the best cleaning practices and to ensure the longevity of your bento box.