Also known as the "one-pot" approach, the method is popular because it uses less pseudoephedrine - a common component in some cold and allergy pills. It also yields meth in minutes rather than hours, and it's cheaper and easier to conceal. Meth cooks can carry all the ingredients in a backpack and mix them in a bathroom stall or the seat of a car.
The improvised system first emerged several years ago, partly in response to attempts by many states to limit or forbid over-the-counter access to pseudoephedrine. Since then, the shake-and-bake recipe has spread to become the method of choice.
By 2010, about 80 percent of labs busted by the federal Drug Enforcement Administration were using shake-and-bake recipes, said Pat Johnakin, a DEA agent specializing in meth.
Newland note: The DEA is exceptionally good at maximizing harm.