This research examined the influence of pyrolysis temperature on a large-size feedstock of coconut shell waste for producing biochar and liquid smoke using slow pyrolysis. The temperature used was varied between 250°C to 450°C at a constant heating rate of 10°C/min and at a holding time of about 120 minutes. Gravimetry, Spectro, and HPLC (High-Performance Liquid Chromatograph) methods are used to identify the liquid smoke for density, phenol, and acetic acid content respectively. The results indicated that increased pyrolysis temperatures caused a reduced biochar yield. However, the liquid smoke yield was found to increase with the temperature. The obtained liquid smoke has a density of 1.054 g/mL and a phenol content of about 4717,91 mg GAE/100 mg, and acetic acid of 11,36%. Results inferred that the liquid smoke can be generated from a large coconut shell through pyrolysis at medium temperature.