The Langnau Jazz Nights offer various food options:

Lunch on the Viehmarktplatz (12:00 – 13:15)
Buffet on the Viehmarktplatz with changing menu
Participants 18 years and older CHF 12.00
Participants up to 18 years old CHF 8.00
 
Dinner (18:00 – 22:00)
Viehmarktplatz: A variety of food stands offer a wide range of international dishes for every budget
Kupferschmiede: Restaurant Kupfergabel