I recently watched my grandmother make bread in her clay oven, a technique passed down through generations in our family.

Archaeologists have used new techniques to study the ancient equivalents of modern kitchen tools used by Native Americans thousands of years ago. Today, we have the mortar, pestle and cutting board.

From social media-driven reinventions of classic dishes to immersive dining experiences in the wilderness, food traditions are being rewritten before our eyes. Culinary heritage isn’t being preserved ...