中学生の食生活における日本茶の飲用実態を明らかにし, 日本茶の重要性をその食事の栄養面と家族関係の両面から検討するために, 中学1・2学年を対象 (夏期360人, 冬期367人) に, 集団面接法による飲料調査を実施した。
飲料の種類として, 緑茶, コーヒー, 紅茶, ジュース, サイダー, コーラ, 牛乳, 乳酸飲料, 麦茶, 水, その他の11品目を取り上げた。
1) 日本茶を好むと回答した者の割合は, 全体の73%であった。しかし, 実際の飲用頻度では, 毎日1回以上飲む者は, 冬調査で40%, 夏調査で28%にすぎなかった。
2) 日本茶は他の飲料に比べ, (1) 夕食時 (59%) に自宅で90%と高く摂取され, しかも大人といっしょに飲む割合が90%と高く, (2) 団欒のイメージをもつ者の割合が58%で他の飲料より高く, かつ実際の団欒時に飲用する者の割合が80%で高かった。
3) 日本茶飲用頻度の高い者は朝食および団欒時に日本茶を選択する者の割合が高く, 団欒時に冷たく甘い飲料を選択する者の割合が低い傾向にあった。
4) 日本茶のある食事は, 主食が米飯である割合, 主食・主菜・副菜のそろう割合, ならびに3種以上の料理により構成される食事の割合が顕著に高かった。

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The study data were obtained from responses to a questionnaire by male and female students (n=100, 100) in 1996 on their favorite beverages, frequencies of using vending machines and green tea drinking habits. The statistical management was done by the SPSS.
The comparative results between the male and female students were as follows:
1. Both male and female students liked teas as such green tea, barley tea, oolong tea and black tea. The male students had a better liking for carbonated beverages, sports beverages, coffee, coffee drinks and fruit drinks than the female students. The beverages frequently bought from vending machines were found to be the students' favorite daily beverages.
2. Those who preferred Japanese-style food liked green tea while those who preferred Westem-style food liked all the coffee drinks. There was a correlation berween the types of preferred food and daily beverages.
3. Ninety percent of all the students liked green tea and there wasn't much difference between the male and female students in the degree of recognition on green tea's seven nutrients and its eight effects, the safeguard against cancer being one of them. The female students drank tea more frequently than the male students, and the former were found to be more aware of the significance of green tea and to cherish it as a representative beverage of Japan.

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  Drinking an infusion of green tea leaves brewed in a teapot (brewed green tea) is part of everyday Japanese culture and is connected with pleasure and hospitality. In recent years, however, the consumption of green tea has been decreasing, something which is especially noticeable in the younger generation. The purpose of this study is to consider the frequency and reasons for drinking brewed green tea taking into account the differences between generations and how they value green tea. A questionnaire was distributed in the Kanto region in 2012-2013 and 309 valid responses were obtained by mail. As a result of analysis, it was seen that the younger respondents drank brewed green tea rarely especially at mealtimes. Regarding reasons for drinking, the following five factors were identified: ‘adjustment of mentality’, ‘affinity with green tea’, ‘passive drinking’, ‘its affinity with food’ and ‘regulation of body temperature’. There were no age differences in factors which have emotional and cultural aspects such as ‘adjustment of mentality’ and ‘its affinity with food’. However, younger respondents had little ‘affinity with green tea’ and they do not drink it with regard to its emotional and cultural value. That affected their frequency of drinking. If people became more aware of brewed green tea and drank it regularly, it might lead to more composure in their daily lives.

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