Just to be clear. Boiling away alcohol has the effect of......boiling away alcohol.
There is not any residual substance that is somehow concentrated. Ethyl Alcohol is the chemical name for "drinkable" alcohol and is completely miscable(mixable) with water.
Alcohol is made by a distillation process which seperates the alcohol (ethyl alcohol) from water and other raw ingredients such as grain (whisky) rye (bourbon) and hops (beer).
There is no carbohydrate in pure ethyl alcohol so your question is almost academic.
Other replies have already pointed out that alcohol, nevertheless does have an impact on weightloss. Because it is so readily absorbed into the blood stream it will take that as a form of energy before it will bother to go through the more laborious route of converting fat from the stored fat cells.
It is unlikely that 0.32 of an ounce of ethyl alcohol will have any noticeable effect on anything. Then again it depends how many you have
There are carbs in beer but not from the alcohol but from the residual ingredients. Distilled spirits such as whisky, gin and vodka do not rate as having any carbs.
The confusion may have arisen by the talk of "sugar alcohols"
The sugar alcohols commonly found in foods are sorbitol, mannitol, xylitol, isomalt and hydrogenated starch hydrolysates. Sugar alcohols come from plant products such as fruits and berries. The carbohydrate in these plant products is altered through a chemical process. These sugar substitutes provide somewhat fewer calories than table sugar (sucrose), mainly because they are not well absorbed and may even have a small laxative effect.
Many foods that are labeled "sugar free" or "no sugar added" in fact contain sugar alcohols. This is unfortunate because many people with diabetes MISTAKENLY think that foods labeled as "sugar free" or "no sugar added" will have no effect on their blood sugars. Foods containing these sugar alcohols need to have their carbohydrate contents accounted for in any LC diet, as it is carbohydrate that raises blood sugar levels.