First thing first.

If you are in the business of making Rakia, you'll need to first produce a reasonable quantity of well riped plums. My recipe does not exactly specify neither the quantity nor the quality of the plums. One of my sources, though, claims that "there should be lots of material" (б.а. преведено от: "Трябва да има материал!"). Preferably, you are going to have a plum tree in your backyard. If not, you can buy plums from the local supermarket; most stores in the US sell them for about 4 dollars per kilogram.