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What makes them unique in an era of mass-produced goods and easy access to big-name brands you can find online?

This signature material dates to 19th century America, when it emerged as a mass-produced, middle-class design element to compete with unique, aristocratic plaster ceilings.

Small batch EVOOs made from olives that come from a single location picked at the same time tend to be more robust than mass-produced bottles, which typically blend oils of varying quality.

Or should the city bring in home builders who could mass-produce homes, which would be cheaper and faster?

The safety of mass-produced food has improved dramatically in recent decades, but listeria, a common type of bacterium, presents unique hurdles.