In the restaurant, brandy is undoubtedly the mainstay of after-dinner drinks, people (especially gentlemen) will call for a glass of brandy after dinner, chatting and drinking --- but don't ask the guests if they want ice. Not only do they not add ice, but they have to heat the glass with warm water before pouring it to the guest.
But now there are more and more young people drinking brandy in the bar with ice and water and carbonated drinks, has gradually become a trend. If you are drinking Hennessy Richard or Hennessy Cup Mojang, as well as Golden King Martell and Louis XIII and so on, it is still highly recommended to drink it net!!!!