After bright grates have been thoroughly cleaned, they should be
dusted over with unslacked lime, and thus left until wanted. Coils of
piano wires, thus sprinkled, will keep from rust for many years.
Table-knives which are not in constant use ought to be put in a case
in which sifted quicklime is placed, about eight inches deep. They
should be plunged to the top of the blades, but the lime should not
touch the handles.