An outbreak of botulism in Thailand was linked to the consumption of home-canned bamboo shoots. All thirteen cases had eaten bamboo shoots from one twenty liter can that had been produced and sold by a single home canner. The vendor had picked the shoots, cleaned them, and boiled them for one hour. While the bamboo shoots were boiled, the vendor sealed the container with lead. The canned bamboo shoots were stored at room temperature for 3-6 months until they were sold. One bamboo shoot specimen was positive for botulinum toxin type A by enzyme-linked immunosorbent assay and mouse antitoxin bioassay. Sale of home-canned food is a means of supplementing income in Thailand. The vendor had failed to follow governmental standards. It was likely that this failure led to the outbreak.