Rules regarding eating on German public transport vary significantly depending on the type of service and the specific transit authority. On long-distance high-speed trains like the ICE (Intercity-Express), eating is not only allowed but encouraged, as these trains often feature a restaurant car or bistro service. On regional trains (RE/RB), eating is generally tolerated as long as you are tidy and avoid foods with strong odors. However, many local city networks, such as the U-Bahn and S-Bahn in Berlin, Munich, or Hamburg, strictly prohibit eating and drinking (especially alcohol) to maintain cleanliness and hygiene. While many locals can be seen grabbing a quick snack, doing so can technically result in a fine if an inspector chooses to enforce the rules. In 2026, many cities have increased signage and enforcement of these bans to reduce litter and spills. The general rule of thumb is that the longer the journey, the more acceptable eating becomes, but always check for local stickers or icons near the doors for specific prohibitions.