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Shelves of vintage mustard tins in the museum collection
Mustard Day & the competition

We paint the town yellow.

“Each year on the first Saturday in August, we paint the town yellow.” National Mustard Day began in 1991 in Mount Horeb, in “about three parking stalls.”

There’s more behind the glass

National Mustard Day · 2024

Mustard Tasting with
Red Hot Horn Dawgs

Watch on YouTube ↗
National Mustard Day

The first Saturday in August.

The 2026 festival ran on Saturday, August 1, from 10 AM to 4 PM. The museum’s own page says: “Join us next year on Saturday, August 7!”

On film: “Mustard Tasting with Red Hot Horn Dawgs”, National Mustard Day 2024. Nothing plays until you press play. Watch on YouTube ↗

The World-Wide Mustard Competition, since 1995

Judged blind: “each mustard presented only as a numbered sample.” Overseen by Barry Levenson.

Pommery Dijon Mustard

2026 Grand Champion

Mustard Mosaic

A summer of mustard on local menus.

From July to August 2026, local partners served mustard dishes in the run-up to Mustard Day.