How Teapot Materials and Tea Types Affect Flavor, Feelings, and Buying Behavior

Area of Science:

• Food Science
• Sensory Science
• Consumer Behavior

Background:

• Catechins, potent antioxidants in tea, are influenced by processing and brewing. Consumer perception of tea involves complex sensory and emotional responses.
• Understanding how brewing variables like teapot material affect tea composition and sensory profiles is crucial for the tea industry.

Purpose of the Study:

• To investigate the impact of different tea types (green, oolong, black) and teapot materials (glass, stainless steel, silica gel, earthenware, porcelain) on catechin content.
• To evaluate the effects of these variables on the sensory attributes and emotional responses (Pleasure-Arousal-Dominance) of tea consumers, including experts and novices.
• To provide practical insights for optimizing tea quality and consumer satisfaction.

Main Methods:

• Catechin concentrations were quantified using high-performance liquid chromatography (HPLC).
• Blind taste tests were conducted with 20 tea experts and 19 novice consumers.
• Participants completed the Pleasure-Arousal-Dominance (PAD) emotional questionnaire after tasting.

Main Results:

• Black tea exhibited the highest catechin content, followed by green and oolong teas. Food-grade silica gel teapots resulted in the highest catechin concentrations.
• Tea type was the primary driver of expert taste evaluations. Novices' umami perception was significantly influenced by teapot material, with earthenware yielding the best results.
• Both groups experienced pleasure from various tastes, with umami enhancing novices' energy and purchase intention. Oolong, black, and green tea were preferred in consistent order.

Conclusions:

• Tea type and teapot material are critical factors influencing both the chemical composition (catechins) and the sensory and emotional experiences of tea consumers.
• Findings offer valuable guidance for selecting optimal tea types and teapot materials to enhance catechin content, sensory appeal, and consumer satisfaction.
• This research contributes to informed product development and consumer choice within the global tea market.