Inspector's Silverware
This array of polished magic silverware typically comes in sets of three pieces of cutlery: a knife, a spoon, and a fork. Each piece of cutlery has 1 charge. When a piece of cutlery that has a charge comes into contact with a food or drink that's poisonous (either naturally or magically), it loses its charge and immediately begins to tarnish and corrode. A piece of tarnished cutlery regains its expended charge and becomes polished again when a creature holding it is targeted by a lesser restoration spell or similar magic. If a creature is holding multiple pieces of this cutlery when targeted by the spell, only one of them regains an expended charge.
Her ladyship would go on expeditions, as she called them. Survivalist forays into the wilderness. She did, of course, still take various luxuries from home. Some were at the behest of her staff, while others were of her own accord. Eating a meal, as she put it, that hadn't been disturbed or tested by her praegustator was one of her favorite such luxuries.