Difference Between Seltzer and Tonic Water
Fact #1: Tonic water glows under blacklight. No joke. Quinine is fluorescent. So your gin and tonic might look like a science experiment at a rave. Seltzer? Boring. Just bubbles.
Fact #2: Seltzer can go flat in 10 minutes if you leave the cap off. Tonic holds its fizz longer because sugar stabilizes the carbonation. So tonic is a survivor. Seltzer is a drama queen—it dies fast.
Fact #3: The word “tonic” literally means “to tone” or “invigorate.” That’s because early tonic water was marketed as a health drink. Spoiler: it’s not. It’s soda with a fancy backstory.
Fact #4: Seltzer is sometimes called “club soda” when it has added minerals like sodium bicarbonate. But read the label: plain seltzer has zero additives. Club soda is seltzer’s slightly smarter cousin.