Table 1.

CPP water extraction conditions

Level	Factor
	Time (T/min)	Temperature (°C)	Solid–liquid ratio (g/mL)	Particle size (μm)
1	10	40	8	420
2	20	50	10	250
3	30	60	12	180
4	40	70	14
5	50	80	16
6	60
7	70
8	80