Quick Answer
Humanure compost is ready when it reaches 131°F (55°C) and has a consistency similar to humus, usually after 30-40 days of active composting. The pile should be well-aerated, with no strong odors, and have an earthy aroma. The compost should also crumble when pressed.
Initial Composting Phase
Humanure composting starts with an initial pile composition of 2/3 “brown” materials (dried leaves, shredded newspaper, or wood shavings) and 1/3 “green” materials (human waste, food scraps, and manure). The pile should be at least 3 feet tall and 3 feet wide to maintain a consistent temperature. It’s essential to maintain a C:N ratio of 20:1 to 30:1 to ensure optimal decomposition.
Monitoring Temperature and Odors
Check the compost pile’s temperature daily, aiming for a minimum of 131°F (55°C) for 3-5 consecutive days. This is a critical milestone, as it signifies that the composting process has reached the thermophilic stage. Regularly monitor the pile’s odors; if they become too strong or pungent, turn the pile to maintain aeration. A healthy humus-like smell is a sign of a well-balanced composting process.
Harvesting and Curing
Once the compost has reached the desired consistency and temperature, it’s time to harvest. Use a pitchfork to mix the pile, then transfer the compost to a separate curing area. This final stage of composting, also known as maturation, allows the compost to stabilize and break down any remaining pathogens. After 1-3 months, the compost is ready for use as a nutrient-rich fertilizer.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.