This [peer-reviewed article](https://onlinelibrary.wiley.com/doi/full/10.1002/anie.201410356) goes into more detail, but I don't have time to read it. In the Wikipedia page you cited it also mentions that some people believed it to be junk science or alchemy.

south_korea_ln

Yeah, I have a hard time wrapping my head around it.

My guess is that, even though they might be able to create a target crystal in a clean room, as soon as it starts being distributed around to customers, it can suffer from contamination from a single seed in the environment that triggers the transformation from the whole target crystal into the patented more stable crystal.

science

Crystal structures that won't form anymore, even though they did few decades ago

zuspotirko

Yeah, I have a hard time wrapping my head around it. 

My guess is that, even though they might be able to create a target crystal in a clean room, as soon as it starts being distributed around to customers, it can suffer from contamination from a single seed in the environment that triggers the transformation from the whole target crystal into the patented more stable crystal.