This is 1 of the most searched for "papaya and milk" queries. Papaya milk is a traditional Taiwanese street drink, and can also be found in Korea, Singapore, Malaysia and Hong Kong so many people have been consuming papaya and milk together without side effects. However, do note that some people may have allergies, especially those sensitive to latex. If you're uncertain whether you can mix papaya and milk, substitute with a plant-based milk instead.