What are the differences in tonics?
Above all, there is not just one tonic, but now several varieties. Together, they and GIN create a distinctive flavour. So it may well be that your favourite GIN tastes completely different with a Mediterranean tonic, for example, than with a spicy tonic or even a fruity one. Due to the variety and different compositions of today's GINs, the "right" tonic can create a new explosion of flavour.
Which one ultimately suits it is a matter of taste, and I can only give you my own experience and taste, of course you have to test it yourself.
Classic tonic
In the "normal" tonic, the quinine flavour on which it is based is immediately to the fore. Depending on the manufacturer, citrus may also be added as a flavour note. This tonic is suitable for more classic, strong gins that form a unit together.
Strong (spicy) tonics
In this case, the bitter note is also present due to the chitin, but is only subordinate to the respective spices and/or herbs used. Here, the flavour is largely determined by the herbs and spices to create a different flavour. This tonic is suitable for more classic strong gins and also adds a spicy note.
Fruity tonic's
In addition to the typical bitter note and citrus, this tonic also contains fruit and or floral botanicals or flavourings, which are more prominent in this tonic and give the GIN a fruity note. This tonic is more suitable for dogmatic / purist GINs such as citrus, arancita or others.
Light tonic's
This category mainly includes many popular, well-known tonics that can be purchased in many markets. They are similar to the classic tonics, but are somewhat weaker. They also include various Mediterranean tonics. This is therefore suitable for light gins that should not be overshadowed by a classic tonic, for example.