Alcohole is a poison to the body. Which is why when imbibed it makes ones head get funny. And if consumed to sufficient excess will kill one. It is a waste bypoduct.
I am just a uneducated layperson but to my limited understanding poisions may be utilized for specific purpose in some very rare tantric rituals. Such peoples (as has been said by others perhaps) are people who have attained such a degree of equanimity that they can eat piss and crap the same as the finest foods.
Other than that....to what purpose alcohol?
I personally won't consume a poision as others are used to doing so.
Alcohole is used in some specific practices as a offering to my personal knowledge.
Now consider a story(which may be a Buddhist story I don't know), of a king who received a foretelling by one of his oracles. Anyone drinking water from a well in the village (which was the primary well in the kingdom) would soon go quite mad. He thusly avoided this well. All else consumed the water and went as predicted quite mad. He was found quite strange and subject to all manner of concern as result by these same peoples. He was sane but they all were quite mad,(drinking poisions and eating bodies of those like them and doing all sorts of things of that sort, quite mad actually). He was considered odd, quite mad actually, by those gone mad, as he did not those things.
He thusly observed this. To remain as king, ruler of those peoples he had to be in some fashion as them, and considered not mad.. So he did consume the water to become mad like them, so he may continue to rule them as king...
Are we to be like that king?
Myself, I will abstain that drink.
"This order considers that progress can be achieved more rapidly during a single month of self-transformation through terrifying conditions in rough terrain and in "the abode of harmful forces" than through meditating for a period of three years in towns and monasteries"....Takpo Tashi Namgyal.