Mulch-compost is produced by a process of controlled aerobic composting (thermophilous fermentation). It is a mixture of agricultural and forester biomass with compostable waste. Its structure is fibrous even crumby with noticeable undegraded pieces of biomass (straw, wood chips, bark). Its colour is brown or brown-grey, at the production humidity it is loose it smells like mushrooms or humid forest. Certification of the product was done by CZ BIOM, Biomass Association, and Prague.

Chemical and physical characteristics 

Humidity in % 40-65
Combustible matters in the dried sample in % min. 20
Total nitrogen as N in the dried sample % min. 0,6
Rate C:N max. 30
Nondegradable ingredients over 5 mm in % max. 10
Size of fibrous particles mm max. 100
Volume of particles below 10 mm in % max. 15

Limit volume of risk matters in mg/kg of dry mass 

cadmium 2, lead 100, mercury 1, arsenic 10, chromium 100, molybdenum 5, nickel 50, copper 100, zinc 500