WHAT IS VAISHVADEVA HOMAM?

Married brahmanas should do it to get rid of sins done by cooking…..as we kill grains ,veg.,etc by knife,fire etc……. eating food without doing it is equal to eating of worms according to shastras.. one should not eat without doing vaishvadevam…….it should be done in noon & night before eating….balis r given for various devathas……….to satisfy them………if we dont do it ,it is the greatest of sins………..all pancha maha yagyas come under vaishvadevam.