The desiccant is used to dehumidify the powder in the MPRINT+ and MPURE.
The color changes from orange to dark green when it has absorbed the maximum amount of moisture.
After that you have to replace it or regenerate it in the oven/microwave at approx. 110° and you can use it again as often as you like.
1kg = approx. 1.25 liters of silica gel
Grain size: 2-5 mm
Packed airtight in a resealable bucket.