If your weed is too dry, you can rehydrate it by adding a small amount of moisture to the container. You can use a humidifier pack, a piece of citrus peel, a slice of bread, or a damp paper towel to do so. However, be careful not to add too much moisture or leave it for too long as it can cause mold or mildew to grow. Check your weed every few hours and remove the moisture source once it reaches the desired level of humidity.