You can buy the unit separately or as a kit of various things which have a motor unit a whisk attachment and the mill. Don’t know how much they are but guess around £20. The whisk is Ok for omelets etc. so it’s not a one off thing
Departmental stores are worth a visit; personal or internet.
I wonder if the dissolving thing has anything to do with ornithine’s requirement of water. If it takes up water easily then it may require a very dry atmosphere to cap them.
Just a thought. Anyway, have fun!