Finally, the C-sink potential will most heavily rely upon the organic carbon content of the used biochar, 𝐹 (here equal to 0.74). The mean value of 0.76±0.06 (mean value for wood biochar pyrolyzed at different temperatures, from low to high) reported in would correspond to the C-sink with 𝐸 =-1.08 ± 0.10 kg CO 2 /kg of C-LWA pellets in their cured state. While wood pyrolyzed at high temperatures yields relatively high carbon content, lower C-sink will be often the case for other feedstocks. For a hypothetical case of biochar obtained from manure, with relatively low organic carbon content of 𝐹 0.39 , the C-sink would correspond to 𝐸 0.46 𝑘𝑔𝐶𝑂 /𝑘𝑔 of cured pellets.