To provide an extract or other substance that can impart not only bitterness and aroma but also taste elements such as koku and robustness without increasing astringency or harshness, and to provide a beverage having superior koku and robustness. Increasing hop-derived polyphenols, particularly trimeric proanthocyanidin makes it possible to provide beverages with koku and robustness without increasing astringency or lingering aftertaste.
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