What alcohol have the highest volume?

It's not possible to say which alcohol has the "highest volume" without more context. Do you mean:

* Highest *alcohol* volume? This refers to the percentage of alcohol by volume (ABV). In this case, pure ethanol would be the highest, at 100% ABV. However, it's not commercially available as a drink.

* Highest *serving* volume? This refers to the amount of liquid in a single serving. In this case, there are many contenders, like a bottle of wine or a keg of beer.

* Highest *total* volume produced? This would depend on the type of alcohol and the specific country or region.

Please clarify your question to get a more specific answer.