The difference between Spa Red and Blue
For those who are not familiar with Spa mineral water ...
In Europe ordering a "Spa" means asking for a mineral water (it mostly has nothing to do with th brand). The waiter then might ask whether you want Blue or Red, which actually means if you want with or without gas. So, let me repeat for all who didn;t know already:
Spa Red = mineral water with gas,
Spa Blue = mineral water without gas!
Furthermore there are many Spa's with tastes, like Spa Lemon, Spa Orange etc. or special Spa mineral waters with some extra minerals.