3 of 3 people found the following review helpful
5.0 out of 5 stars
Perfect for descaling steam ovens and showerheads, 1 April 2013
This is the magnificently named 2-hydroxypropane-1,2,3-tricarboxylic acid. And some companies sell it as a descaling agent for around £5 for one descale. Here you get 500 doses for less than a tenner. I did not do an assay on it, but it is approved as a food product so it must be as pure as it needs to be. Truly a no-brainer.