Grenade in a potato shipment

A German grenade from World War I was destroyed by Hong Kong police recently after it turned up in a shipment of potatoes at a chip factory. Police had to use a “high-pressure water firing technique” to detonate the grenade safely. The grenade, which was caked in dirt, came in a shipment from France, along with the potatoes. A military historian, Dave Macri, believes the weapon was most likely dug up by potato harvesters in France.