"eclectic" wrote in
:

Why would anyone want to add muriatic acid (hydrochloric acid) to
coffee grounds??! What benefit would this acidic paste have for
plants? I've used muriatic acid to etch concrete and had to wear
rubber gloves so that my fingers wouldn't dissolve. I wouldn't
brush my teeth with it. If you add an acid to baking soda, it reacts
instantly. Is this a sick joke?

every now and then you'll get a reply to a question that involves
muriatic acid. do a search for rec.gardens and muriatic acid. probably
the same person every time.