Tonic water
Energy: ~30–35 kcal / 100 ml (typical) (planning figure — the product label is the final reference)
Shelf life: Sealed: long, per label. Opened: flat within about a day even refrigerated — small bottles win.
Storage: Chilled for service; FIFO on the stock.
- Espresso tonic — tonic over ice first, the shot floated on top
- Citrus tonic mocktails
- Build it like sparkling: tonic goes in last, one gentle lift
Not a zero mixer: it carries real sugar plus quinine (the bitter note). Count it toward added sugar like any soft drink — WHO guidance keeps added sugar under 10% of daily energy, ideally under 5%. Quinine itself is something a few guests avoid; the label lists it.