no, i don't think so. i wrote a post about it and "alcool" is pretty much in the "materials" category (like most liquids and food) which must take an article.
made a little test on Google to prove myself:
- "ho alcool" - 1 430 hits
- "ho l'alcool" - 3 490 000 hits
quite a difference :D
If you include the quotations marks in your google search, you'll find correspondences for the exact sentence, and you'll realize that the first sentence actually gets more results than the second one, with the article. Anyway, I never suggest to blindly trust the number you get from google; you should always inspect the result of the research (at least a few records) to realize if it's exactly searching the kind of expression you meant to look for. A lot of times, I would have got misleading results, if I hadn't looked into the results of the search.
Anyway, both the expressions are correct, but actually I feel they probably mean something slightly different. That's why I told you that I would or wouldn't use the article based on the context.