Social networking sites also erupted when someone recently posted a video showing an ice cream of the Zhong Xue Gao brand remaining rock solid even after being left at room temperature (31 degrees Celsius) for an hour. Yet another video showed an ice cream of the same brand not melting even after being exposed to the flame of a lighter, triggering concerns about how safe it was for consumption. Therefore, more than 40 per cent of it is solid matter, 20 per cent higher than the national standard. Regarding carrageenan, the company reiterated what is common knowledge, that it is a natural extract from red algae and widely used as a thickening agent in ice creams and beverages. From the time it was established, China-based Zhong Xue Gao has been dubbed the "Hermes of ice cream" and holds a prime market position.