K&N Filter Cleaner

[Frosties]

This is what i was thinking, maybe a bucket of hot water with Fairy Liquid or the like must give similar or even much better results than simply spraying the K&N magic formula on the filter?
Something not too harsh like an oven degreaser maybe?

For what it's worth, I've cleaned the K&N's on all my performance cars (carbed, injected and turbo ones) with washing up liquid for years (all we're doing is removing dirt grabbed by the filter oil)...then used silicone lube spray to charge it. No issues. Just my 2p.