Of course it is Not a sin. Enjoying a drink made from the fruits of the earth given to us by God such as : barley, juniper berries, molasses or grapes is a pleasureable activity. There is nothing better or more health giving than a glass of red wine with dinner. Notice I said one glass. As with all things we consume, moderation is the key. Having a drink does not make you a drunkard - eating a meal does not make you a gluten. Something taken in excess, ie. over-indulgence which affects the lives of others can be termed a sin. Why anyone should assume that a person does not have any willpower and is incapable to controlling their intake of drink or food for that matter I have no idea. It doesn't say much for our opinion of our fellow man. No the occasional drink of say wine, brandy or even a beer for that matter is not a sin it can be pleasing to taste and have medicinal properties.