...and the Waitrose site shows it as 342g! So no agreement at all, but all around 350g/L.

Has this changed, or does it differ between amrkets? The official US site says 15.2g per 1.5 oz, which would be around 340g/L, and the Swedish government Systembolaget site shows it as 376g/L and Norway's shows it as 360 g/L, all of which are significantly higher.

The description in the book has an editing error. It refers to it as being created by "Emily Gosling of Black rum (e.g. Goslings)"

According to this study, alcohol *does* kill salmonella, at least in a pisco sour, and it takes several minutes. https://www.sciencedirect.com/science/article/pii/S0023643819309508?via%3Dihub