I might be the last person to be clued in on this, but I did not know you shouldn’t use soap to clean a wine decanter. The soap can affect the taste of the wine (oops sorry Nick)! A family friend informed me that to clean one, fill it about a 1/4 way with warm water, pour in about a tbsp of salt, swirl it around and that should do the trick. Good to know, thanks Maria!
Photo: Better Living Through Design