Which method is commonly used to manufacture methamphetamine?

The one pot "shake and bake" method is commonly used to manufacture methamphetamine because it allows for quick production using easily accessible materials. This technique involves combining meth precursor chemicals in a single container, often a plastic bottle. The process generates pressure and heat, which can lead to explosive reactions if not handled carefully.

This method appeals to those looking to produce meth in small quantities due to its simplicity and speed compared to more traditional methods that require larger setups and more elaborate procedures. The convenience of using household items and its portability have unfortunately contributed to the widespread misuse of this method in clandestine meth production.