Microgreen mats mold problem

When mold develops on hemp or coconut growing mats.
The mold mostly arises in the factories themselves and it is not on the mat. The spores are already on the seeds and then develop into mold under heat and moisture
 The spores of mold are everywhere around us and under greenhouse conditions, they
love to grow. As the hemp fibre is very fine, it hold a lot of moisture and this can be the
reason for it. Coir fibre is more coarse and does not hold the water at all so this can
be the reason why the mold on this pad does not appear.