How to measure the effectiveness of IBC cleaning?

We re-use some of our IBC`s and want to be better at checking the washed IBC`s. As for now we wash the IBC`s with 80 ^oC hot water, places the cap by the end of the outlet. We run a 5 min washing program by sprayhead.

After the 5 min we check if the water in the cap are clean and not foaming. If OK the IBC-wash is finished if no 1 min wash until rinsewater is clear and not foaming.

I want suggestions to quick controls other than this visual control, please.

I thought measuring pH may be a suggestion...

Hi Conny T,

As always, it depends on what you're cleaning out. We store fruit juices. We have a rinse, caustic, rinse, PAA and then rinse cycle. Completion is by litmus and swab validation. Works for us.

You`re right BrummyJim :spoton:

We are cleaning out soaps, creams and Desinfection gels. Some gels form harddissolved jelly structures which are very hard to see at the visual control we are using now. The problem also is that some of the products have the same pH as water so a quick pH teststrip is not the solution I have found out.

Now I think conductivity....?