Bob Eager wrote:

We have a quantity of hardened soap powder (at least, I assume that's
what it is) in the soap powder tray, and in the recess it fits into.
This is an old Hotpoint.

It's causing problems moving the tray; it's very hard to scrape off. Any
useful tips on removing it?

Many powders use fillers like chalk as bulking agents. Hence you may
find a descaler or some other mild acid will help remove it. Especially
if you can let it soak for a bit.

--
Cheers,

John.

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