It depends on the sect. The New Order Amish are the most conservative and tend to be against all forms of alcohol consumption. But other sects of Amish will drink wine or beer especially on special occasions although over consumption and drunkenness is not acceptable.
http://www.amish365.com/alcohol-and-the-amish/
http://amishamerica.com/do_the_amish_dr/
Some Amish make and drink homemade wine and beer (they are German after all) and some Amish in Lancaster County also grow tobacco as it is a lucrative crop and a few also smoke tobacco, but in pipes rather than cigarettes. For some reason they think that cigarettes are “worldly” while smoking pipes, not so much.
http://amishamerica.com/do-amish-smoke/
I was at a shopping center near where I worked in Manheim, PA (Lancaster County) where there is a lot of Amish and saw a young Amish guy coming out of the Wine & Spirits store with two boxes of boxed wine and going back to his horse drawn buggy. This shopping center BTW had designated parking spots and hitching posts for their Amish customers. I came across both Amish and Mennonites shopping at the Weis Markets grocery store and at the hardware store.
Another day coming out the grocery store I saw an Amish buggy parked and in the back of the buggy was two bright red gasoline cans. It could have been for kerosene however.
I love riding my motorcycle around Lancaster county.
You never know what you’ll see.
A big 1356 International tractor with steel wheels with solid rubber pads.
A gas engine powered round baler pulled by a team of horses.
Amish women using gas engined weed whackers.(They love ‘em).
Kids on scooters zooming down hills in front of the family carriage.
I had a repair done at an Amish metal working shop (inexpensive!). They sold just about every kind of chaw and dip in the world.