Table 1. Comparison of water loss efficiency

Parameter	Direct drying	Indirect drying
Total water loss (g)	1,297	1,268
Area absorbent (cm)	5,858	4,952
Volume compartment (cm3)	191,760	109,722
Volume absorbent (cm3)		67,279
Area absorbent / volume compartment (cm2/cm3)	0.0305	0.0451
Area absorbent / volume absorbent (cm2/cm3)		0.0736
Volume compartment / volume bamboo	46.45	25.77
Water loss / area absorbent (g/cm2)	0.22	0.26
Water loss / volume compartment (g/cm3)	0.0068	0.0110