refreshing lemonade

In the summer there is nothing more refreshing than a mccafe lemonade. It is not too sweet and not too tart,just right. i do not usually like lemonade but certainly like this one.

I bought this ona hot spring day thinking it would be refreshing but I was very disappointed ! The lemonda is so bitter and sour you can't even drink it ! It gave me pretty bad stomach acid , I only had a few sips and ended up throwing it out . It's missing a lot of sugar . I'm sure with some tweaking it would have great potential