Harmonizing Drying Time, Layer Thickness, and Drier Zones for Drying Kinetics: Quality and Safety of Solar Tunnel-Dried Wet-Processed Parchment Coffee (Coffea arabica L.)

Table 2

Influence of drier zones and layer thicknesses on the drying hours of parchment coffee.

Dryer zones	Layer thickness (cm)	Hours of drying	Percent decrease in drying time for specific layer thickness as compared to open sun
Open sun	2	^d	0
	4	^c	0
	6	^a	0
Zone 1	2	^f	22.6
	4	^e	22.9
	6	^b	16.4
Zone 2	2	^g	36.7
	4	^g	42.8
	6	^d	31.9
Zone 3	2	^i	57.2
	4	^h	52.9
	6	^e	39.8
CV%		1.35	—

Values expressed are mean values of three error. All mean scores, bearing different superscript letters in columns, differ significantly ().