Soil Lab
Compost recipe & timeline
Tune nutrient ratio, moisture, and target temperature. The timeline adapts to your settings.
Presets
Carbon : Nitrogen
30:1
10:1ideal 25–35:160:1
Moisture
55%
20%ideal 50–65%90%
Target temperature
65°C
20°Cideal 55–70°C80°C
Recipe health
100%
C:N ratio in ideal band
Moisture in ideal band
Target temperature optimal
Composting timeline
Days from start → finished humus
Estimated duration
60 days
Day
1
Layering & soak
Build alternating browns/greens layers. Water to wring-out-sponge feel.
Day
3
Microbial bloom
Bacteria multiply. Pile heats to 40°C. Turn if smelly.
Day
7
Thermophilic peak
Pile hits 65°C — kills pathogens & weed seeds.
Day
14
First turn
Aerate to feed aerobes. Add water if drying out.
Day
28
Cooling phase
Pile drops to 35°C. Fungi & actinomycetes take over.
Day
42
Curing
Stop turning. Earthworms move in. Coarse compost done.
Day
60
Mature humus
Crumbly, sweet smell. Sift and apply 2 cm to beds.
Volume reduction
60%
Final pH
6.8
Yield
~120 kg