What type of food are you trying to culture? Typically, for example, worms that are home cultured can be considered safer than those purchased from outside sources. In home cultures you have the ability to: control the culture media; control the type of food that is fed to the prospective 'newt food' you are culturing; provide a pesticide free environment, etc.hiyai hav 3 chinese fire belied newts and i heard that u hav 2 quarintine home cultured food before you feed them 2 youre newt