@grune said in Clean with 'alcohol'?:
I use 75% Ethanol, as this is proven to be the most effective against germs and spores (higher % evaporates too rapidly, lower % is useless).
This gets debated from time-to-time. But any concentration between 60%-90% is considered effective, with 70% considered the most effective.
I prefer Ethanol, for a few reasons: not toxic; acts instantly against spores;
Alcohols can kill many bacteria, fungi, and viruses. But they are generally not effective against spores.
And paradoxically, high concentrations of alcohols are less effective at killing these organisms, because water is needed for them to act. High-concentration alcohols are meant to be used as solvents, not as disinfectants. This appears to be what @grune is alluding to in the last paragraph of his original post. And I agree with him, that ethanol is considered safer to use than isopropyl alcohol.
I don't regularly use them myself. But alcohol-based agents can have a role in cleaning your horn. However, much of this may be moot. Because you won't get these organisms out of your horn, unless you first get all the "pizza" out of your horn. These organisms thrive in the organic material in your trumpet. This is why the best way to clean your horn is the tried-and-true method of dish washing liquid, a snake, and lots of warm water. Remove the organic material and wash it away, and you've gotten rid of these organisms more effectively than isopropyl alcohol or ethanol.
Mike