My Humidifer Box is empty, there are only few granules of crystals. Is this OK?

That's a true classic question. Our GERMANUS absorb multiple hundred (!) times their initial size of liquid. Accordingly, the included quantitiy is calculated. That quantity may be lower than some users might think at first glance: More crystals would lift the lid or press themselves through the grille. The limited quantity is important and an actual quality factor of our product.

Please also see our videoSetup of a Humidor Humidifier Box with GERMANUS Crystals