Table 6.
Sensory evaluation of grape seed teas.

Sample 2) Sensory evaluation 1)
Color Burnt Smell Sweetness Bitterness & Astringency Total preference
Unroasted 1.00±0.00c3) 1.00±0.00c 2.33±0.62a 1.47±0.52b 1.47±0.52c
150°C 2.00±0.53b 1.47±0.52bc 1.87±0.52a 2.87±0.74ab 2.33±0.48bc
160°C 3.27±0.59ab 2.20±0.56b 1.93±0.59a 2.80±0.56ab 2.67±0.48b
170°C 4.13±0.52a 2.93±0.70ab 2.13±0.64a 2.60±0.51ab 3.67±0.48a
180°C 3.93±0.46ab 2.60±0.50ab 1.80±0.41a 3.60±0.74a 3.67±0.82ab
190°C 3.26±0.46ab 3.20±0.41a 1.60±0.51a 3.13±0.52ab 2.67±0.72ab
Sensory scale is 5; Very good,very strong↔1; very weak,very poor.
Sample is 4% (w/w), roasting for 30 min, extraction for 1h.
Means in the same column bearing different superscripts are significantly different (p < 0.05).