Cola Processing Raw Materials

The blue-skinned person told me how to make cola sweeter. The raw material is a blue cube. After processing, it becomes a green volatile liquid that the blue-skinned person calls cola concentrate. This liquid is corrosive and cannot be drunk directly, but after simple processing, it can become the best-tasting cola in the world. It's not overly sweet, but it's addictive. This cola would definitely sell very well. However, the method of obtaining these blue cubes is a bit...