I intend to make a melomel based on a Polish trójniak with (sour) cherries. As we're in season, I will probably buy fresh fruit at my local grocery store or market. What I wonder about is how to best sanitise the cherries without stripping them of their flavour.
I was thinking about giving them a quick Starsan bath and/or spraying them with 70% ethanol before chopping and freezing. Is this a good idea? I am aware that freezing alone will kill off some, but not all of the bacteria and wild yeast that can be found on fresh fruit.
In case it's relevant, trójniak is one part honey and two parts water (by volume), resulting in an OG ~35°P (1.154). My mead yeast strain has 21% alcohol tolerance.