Cleaninf old demijohns

[meadman77]

Hi everyone,
I've managed to pick up 2 full size demijohns (54L). They have stored outside by the looks of it and have dirt and mould inside. What is the best thing to clean really dirty demijohns - warm bleach and a nylon scourer on the end of a piece of dowel?

 

[sour_grapes]

I'd go with PBW (Powdered Brewery Wash) and oxiclean, and see how you make out.

There is a tool available, similar to the one you describe, for cleaning carboys.