Patty

You know, I don't know now. I don't drink seltzer water any more just plain water. Actually the bubbles in the plain seltzer water were the only thing that cut right thru the mucous and held it in suspension so I could spit out both the mucous and seltzer water. Don't know if I could have swallowed it as despite going through almost a case a day of the cans (cheapest generic store brand in cans), I very rarely drank it. Just swish, spit and rinse.
Funny, it was the Magic mouthwash that burned my mouth despite two reforulations.