Why does my own wine get moldy?

That many winemakers make their wine at home. Sometimes our wines start to mold themselves after sitting for a while. This is a common question. Why does my wine get moldy? Come check it out with the micetbrewing engineers!

Why does homemade wine get moldy?

1.The grape skins are in contact with the air for a long time, and the bacteria grow too fast, resulting in mold.
   Treatment method: remove the moldy skin grapes, and be careful not to contact the wine, after cleaning, stir 1-2 words every day to keep the skin moist.

2.The mold that may have come into contact with oil during the brewing process or caused by an unclean container.
   Treatment method: remove the mold and remove the upper layer of wine.

3.The grapes were not fermented at all, and the sugar content was too high, leading to mold.
    Processing method: add live yeast.

Fermentation utensils for home-brewed wine should be cleaned, disinfected, and drained with hot water or edible alcohol before use. During fermentation, the temperature should be controlled between 15~25°C and avoid higher than 30°C. Since there are many types of microbes on the skin of grape raw materials, it is recommended to add an appropriate amount of active dry yeast for brewing before fermentation to achieve the purpose of inhibiting the reproduction of miscellaneous bacteria.