We only pack our briquettes after the moisture level has been brought down below 5% and the briquettes are at room temperature. The briquettes are packed in very well sealed plastic lined boxes which ensure they do not come into contact with moist air. We also place several desiccant bags inside the shipping containers so that the air within the container is kept dry during sea transit. You can rest assured that only well dried charcoal briquettes will be delivered to you!