Some fresh produce, particularly imported varieties, may be hydrated in the field or washed during processing with water contaminated with salmonella.

CNN: Salmonella infection

Thousands of plants, including many varieties which are imported from Europe during winter months, will be grown on a 23-acre site in Billingham.

BBC: NEWS | UK | England | Tees | Factory fuels year-round tomatoes

Caves and cellars are filled with wheels of cheese that range from stinky to imported and aged, plus varieties made in the hotels themselves.

FORBES: Cheese Caves Are The Newest Hot Hotel Amenity