It was not only the orcs 'milk wine that did not use distillation, but the humans' fruit wine did not use distillation either. This confused Zhao Hai. On the ark continent, most of the wine was fruit wine, while the orcs only used milk wine. There was no grain wine at all, which confused Zhao Hai.
The orcs loved wine, and this was related to their living environment. It was very cold in winter, and the other three seasons were not any better. They had to eat and sleep in the open every day to graze their livestock. The weather was constantly changing, and sometimes a bag of good wine could save their lives.
It was because of this that the orcs not only liked wine but also strong wine. However, there was no wine that was too strong on the continent, and they could make milk wine themselves without buying it, so they mainly used milk wine.
