Spicing up science

This year’s National Chemistry Week (NCW) invites us to look closer at something surprisingly powerful: the contents of our spice racks. With the 2025 theme, “The Hidden Life of Spices,” we’re turning up the heat on a world of chemistry that isn’t distant or abstract; it’s rich with aroma, packed with flavor, and deeply connected to everyday life.Too often, chemistry can be seen as something that lives only in textbooks or behind laboratory doors, seemingly complicated, abstract, and detached from daily life. But chemistry becomes meaningful when it’s rooted in relevance, when someone sees it, tastes it, and feels it. And what better gateway than spices?Spices engage all our senses. A sprinkle of cinnamon can transform a piece of bread and ignite a discussion about cinnamaldehyde and thermoreceptors. A single chili pepper doesn’t just bring the heat; it fires up the connection between capsaicin and neurobiology. Clove’s eugenol seasoned with science offers insight into molecular structure and a molecule’s pain-relieving properties. These are opportunities to showcase how chemistry shapes experience.When outreach connects with what people already know and love, be it curry, cookies, or a hot or cold Chai tea, it creates a connection. Science stops being intimidating and becomes familiar. Learning that the turmeric in your family’s dinner is also being researched for its medicinal properties can be transformative. And perhaps most powerfully, spices are universal. Every culture uses them. Every cuisine depends on them. They carry traditions, stories, and identities. That makes spice chemistry not just a teaching