producing delightful aftertaste?

[Licha]

English Language Tests, Intermediate level

ESL/EFL Test #155 "Compound words: 'aftermath', 'afterthought', 'afterbirth'", question 6

The fruity tones of this mild, balanced brew produce a delightful ..........

(a) afterthought
(b) afternoon
(c) aftertaste
(d) afterlife

English Language Tests, Intermediate level

ESL/EFL Test #155 "Compound words: 'aftermath', 'afterthought', 'afterbirth'", answer 6

The fruity tones of this mild, balanced brew produce a delightful aftertaste.

Correct answer: (c) aftertaste

Your answer was: correct
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I didn't quite understand this sentence,could you explain it please.
thank you verry much for your help.

[Kitosdad]

Good morning Licha, it means that after drinking the tea, it leaves a nice taste in your mouth, long after you have finished drinking it.
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Englishman living in Germany.