Knavas have introduced wine, fish, honey, meat, alchohol, and preparations of rice and sesame seeds. The use of these is not sanctioned in the Vedas.
सुरा मत्स्या मधु मासंमासवं कृसरौदनम्। धूर्तेः प्रवर्तितं ह्येतन्नैतद् वेदेषु कल्पितम्॥