This is a topic I've thought about and examined in the Scriptures. So be warned, long post incoming.
First, some background. I come from pretty much a teetotaler family. Bible believing Christians who generally drink no alcohol and don't have it in the home. There are some family remedies involving alcohol but that's something that only was broken out the last few years as my grandparents and now my parents are aging. And no one in my immediate family consumes alcohol regularly. The churches I grew up in typically took a very anti-alcohol stance. One actually required people to sign a statement saying they would consume NO alcohol in order to be members. But that church was very hypocritical in enforcement. People in positions of influence in the church were regular drinkers, and the pastoral staff simply turned a blind eye. Not good. The pastor of the Tennessee church I am looking to attend also says that Christians should not drink at all.
I disagree with the idea that Christians cannot drink. Here are my Scriptural reasons why.
Firstly, in the Old Testament, there was something called a Nazarite vow, which involved someone taking a vow of service to God and it involved things like not cutting hair, touching dead bodies, or consuming alcohol. The fact that the vow involves a prohibition on alcohol shows that some consumption of it was going on in society at that time. See Numbers 6:3.
Secondly, the Bible actually gives some scenarios where consumption of alcohol (strong drink) is allowed. Here are some of those passages laid out.
Deu_14:26 And thou shalt bestow that money for whatsoever thy soul lusteth after, for oxen, or for sheep, or for wine, or for strong drink, or for whatsoever thy soul desireth: and thou shalt eat there before the LORD thy God, and thou shalt rejoice, thou, and thine household,
Pro_31:6 Give strong drink unto him that is ready to perish, and wine unto those that be of heavy hearts.
So we see that alcohol can be used as a painkiller, to raise the spirits/destress, or for pleasure/rejoicing/celebration.
Thirdly, there are passages in the Scriptures that don't make sense without the consideration of alcohol/fermentation. The parable of the wineskins is a good example. You don't put new wine into old bottles because as the wine ferments, the gases given off will burst the old wineskins, which have hardened over time. You put new wine into new bottles/wineskins, so as gases are given off during fermentation, the skins will swell and stretch and not burst.
There are certainly some guidelines and principles for consuming alcohol, however.
Alcohol should not be consumed by Levites performing service. See Leviticus 10:9.
Those who want to be more effective serving God should put aside alcohol. John the Baptist did not drink, the Nazarites, etc.
Proverbs 31:4 says that rulers or those who need to make serious decisions should not be given to alcohol.
Isaiah 5:11 says that habitual addictive drinking from morning until evening is a woeful state of being.
Proverbs 20:1 says that alcohol is associated with mockery and anger and it is unwise to over consume.
Ephesians 5:18 says not to drink to excess but to be controlled by the Spirit (and not by alcohol).
It seems clear to me that since the Bible does NOT simply say "Don't drink alcohol!" and gives us the above guidelines, that alcohol consumption is not completely prohibited.
I hardly ever drink. I eat a gluten free diet, so any wheat based liquor and beer are out anyways. I think the only drink I had in the last year was a family curative and it was awful. But I do take exception to those who tell others they cannot drink and that they are sinning if they do so.
CS Lewis and a great many other notable Christians of past days both drank AND smoked and probably did a variety of other "soft" drugs too.
Caffeine, anyone?