Question

自制葡萄酒，味道有点酸

Answer 1

自酿的葡萄酒变酸了有两种原因：
1，发酵时间太长，没有及时终止发酵，没有及时倒桶，俗话说叫发酵过了，酒变成了醋。
2，另一种原因是酒液被醋酸菌污染，酒液变质，变酸，这种情况是不能饮用的。
自酿葡萄酒的方法如下：
材料：新鲜的葡萄，白糖，容器。
第一步，去市场购买新鲜的葡萄，把坏掉的葡萄挑出来。
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第二步，洗干净葡萄然后泡半小时淡盐水，再冲洗一遍。
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第三步，冲洗完成后放在外面干净的地方晾干，不要让葡萄把多余的水分带进去。
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第四步，把晾干的葡萄捏碎后放入容器内，按照6斤葡萄1斤白糖的比例来放入白糖，然后搅拌均匀把盖子密封好。
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第五步，夏季发酵一周就可以了，秋季温度低的话要半个月的时间发酵。
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第六步，发酵完后，用滤网过滤出来葡萄酒，可以多过滤几遍再装进酒瓶中。
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Answer 2

酒精发酵是要无氧呼吸的
变酸有两个可能
1
已经发酵过头了
2
发酵时进入氧气了
下次记得要把瓶子密封好哦