To prevent mold on the seal, wipe down the shell with warm soapy water, dry thoroughly then leave it open till the next use.
Keeping the box closed without being completely dried will cause mold.
If your Bentgo begins to hold a smell, we have had some customers successfully put newspapers in the unit for a day or so to remove the smell.
If you have any further questions, please reach out to us by submitting a ticket or calling 1-657-275-3734 Monday through Friday 8 am PST to 5 pm PST.