Matt B
1st March at 00:06
I dont have an expresso machine to try this, but why would you use hot expresso when you're shaking this with ice? Wouldn't all the water from the melted ice just turn the expresso in to room temperature coffee?
1st March at 08:28
It is counterintuitive to use hot fresh espresso, but espresso that has been allowed to cool is more acidic and lacks the flavour of freshly made espresso. With good ice, over dilution is not an issue. However, if you don’t have an espresso machine, then there are some purpose-made coffee concentrates available, e.g. https://www.diffordsguide.com/beer-wine-spirits/6790/solo-coffee-cold-brew-concentrate
5th November 2020 at 19:19
Optional addition of a pinch of salt when making espresso depending on taste, cancels out bitterness