H₂O: Granular H₂O ice can be produced by crushing solid blocks into smaller pieces (in the millimeter-size range), or by dispersing liquid H₂O with different techniques: pressurized air and nozzle (mean particle radius:  μm), ultrasonic-bath (mean particle radius:  μm), or vibrating mesh (mean particle radius:  μm). Core-mantle particles can be produced by spraying a suspension of H₂O and dust (organic, or silicate). Due to the production process of the H₂O-ice samples, the structure of the material will be crystalline.

CO₂: Solid and coarse CO₂ ice can be purchased in various sizes and shapes, ranging from slices with several decimeters in size to millimeter-sized CO₂-ice particles. In order to obtain smaller, fine-grained CO₂-ice particles, we will spray pressurized liquid CO₂ through a nozzle (Snow Station from Linde Gas; this setup is available in the laboratory). Adiabatic expansion causes the particles to freeze. First tests with this device have shown that typical size of the produced CO₂-ice particles is in the range of several micrometers.

Tholins: tholins are produced in the gas phase within reactors, or within ices by several groups in the world (the production of tholins will be performed in collaboration with N. Carrasco and C. Szopa, LATMOS, Paris). Unfortunately, the low production rate of these materials currently precludes their use for large experiments.