Keep them in a cupboard, away from any heat source.
The guns were kept in a locked cupboard in the study.
They're kept in a cupboard in my office.
Such things might be kept in a "livery cupboard".
These should be kept in a cool cupboard in a tightly closed jar.
All my possessions began to smell of smoke; even my better clothes which I kept in a closed cupboard under the bunk.
But did she really use a potty at night, keeping it in a cupboard by her bed?
Allegedly, the key to the safe was previously kept behind a bottle of cherryade in a cupboard.
The one remaining copy of Freud's works was kept in a locked cupboard referred to as the "poison cabinet".
So it was kept safe in a cupboard.