自酿葡萄酒多长时间可以喝，

观点1：酿制葡萄酒，如果温度合适，一般十几天就能够充分发酵，发酵过程会有大量气泡产生，持续一周时间发酵现象就会逐渐减弱。如果气温低（低于三十度）可以多发酵几天。里面没有很多气泡再生成时，就需要及时过滤皮渣，过滤后的葡萄酒，暂时不能装瓶储存，还需要再经过二次发酵的过程，待酒液澄清后装瓶保存。
需要注意的是，发酵时间越长酒味越浓；葡萄酒酿好以后，放的时间越长，酒味越浓。葡萄酒酿好以后，要把葡萄籽，葡萄皮，还有发酵后残余的果肉都过滤掉。滤渣时用干净的纱布过滤就可以，滤渣的工具一定要严格消毒，不能用铁质、铜质等工具，不能接触不洁用具，避免带入细菌导致葡萄酒二次感染变质。; 观点2：需要发酵1个月，具体做法如下：
需要提前准备好的材料包括：紫葡萄2500克、白糖300克、盐10克、面粉100克。
1、买回来的葡萄先把有破损的挑选出来。
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2、把葡萄放进一个大些的盆子里加入清水和适量面粉，用手顺着一个方向搅拌清洗。
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3、洗净灰尘的葡萄再用淡盐水浸泡15分钟，清除表面残留农药。
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4、之后把葡萄放阴凉通风出晾干表面水分。
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5、葡萄倒入盆子里加入白糖搅匀用勺子压破。
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6、装入玻璃罐用保鲜膜封口。
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7、在25-30度的室温里发酵1个月。
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8、用干净消过毒的细纱布把葡萄酒过滤一下。
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9、倒出，完成。
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注意事项：
葡萄必须是红的发紫的才行，发青的做出的口感很差的，白糖比例看个人喜欢口感。; 观点3： 2个月左右

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