Pitaya acid beer and preparation method thereof

The invention discloses pitaya acid beer and a preparation method thereof, and belongs to the technical field of beer preparation. The preparation method of the pitaya acid beer comprises the following steps: S1, boiling first wort prepared from malt, and adding humulus lupulus and clarificant tablets before boiling to obtain second wort; s2, adding acid-increasing yeast into the second wort, and fermenting until the pH value is 3.5-3.8, so as to obtain fermentation liquor; and S3, adding wheat yeast into the fermentation liquor, fermenting for 3-4 days, then adding the boiled and cooled red pitaya grains, and continuously fermenting for 7-8 days to obtain the pitaya acid beer. The invention further provides the pitaya acid beer that is prepared by the preparation method. The pitaya acid beer is high in nutritional value and sour and refreshing in taste. 本发明公开了一种火龙果酸啤酒及其制备方法，属于啤酒制备技术领域。该火龙果酸啤酒的制备方法，包括以下步骤：S1、将由麦芽制得的第一麦汁煮沸，并在煮沸前加入啤酒花和澄清片，得到第二麦汁；S2、向所述第二麦汁中加入增酸酵母发酵至pH为3.5-3.8，得到发酵液；S3、向所述发酵液中加入小麦酵母发酵3-4天，之后加入煮沸