Andhra Pradesh is set to start collecting cotton candy samples from public places next week to check for the banned dye Rhodamine B. This decision comes after delays due to difficulties in sample collection. Neighboring states like Tamil Nadu, Karnataka, and Puducherry banned cotton candy sales earlier this year because of health concerns. Despite this, cotton candy is still sold in places like Vijayawada, including at the recent Vijayawada Book Festival. "In 2024, the ban in neighboring States caused fear among sellers here, and for three to four months, they were out of sight, making it difficult for our officers to collect samples," said A.P. Joint Food Controller N. Purnachandra Rao. The food safety department plans to start sample collection in Guntur and Vijayawada. Most sellers come from other states and move frequently, making them hard to track. A ban cannot be enforced without lab confirmation of the banned dyes. Cotton candy often contains Rhodamine B, a dye used in textiles but banned in food. Another prohibited dye is Metanil Yellow. Some synthetic colors, like Tartrazine, are allowed in limited amounts for sweets and drinks but banned in hot foods. Mr. Rao also warned parents not to buy cotton candy, as it is made in unhygienic conditions.