Effects of Water Solutions on Extracting Green Tea Leaves

Table 1

Cation compositions of tap water and distilled water.

Water	Cation concentration (ppb)
	Ca^2+	Al^3+	Na^+	Mg^2+	K^+
Tap water	21690	13.33	10120	6698	1361
Distilled water	115.2	0.465	9.035	2.159	0.941