The red and black in the bar, of course, refer to the two kinds of whiskey, Red Square and Black Square. The aging period of Black Square is longer than that of Red Square, so its quality is better.
Drinking Red Square and Black Square whiskey in a bar is similar to drinking other kinds of whiskey; it’s best enjoyed on the rocks. Red Square + sliced lemon + sugar cube (granulated sugar also works) is the most authentic and traditional way to enjoy it. Genuine Red Square whiskey has a slightly sour and astringent taste. Adding sugar can balance out the sourness, while the lemon gives the drink a fresh flavor. Of course, the sweetness and sourness can be adjusted according to personal preference for a pleasant taste. Red Square whiskey is best consumed at around 22 degrees Celsius, which provides a better experience than when it's chilled.
When Red Square whiskey entered the domestic market, to cater to local tastes, mixing Red Square with cola, Sprite, or Citrus-flavored carbonated beverages became a timeless trend. These sweet drinks not only help balance the sourness but also enhance visual appeal. Adding these beverages dilutes the alcohol flavor and changes the texture, making it especially suitable for female drinkers who prefer a lighter taste.