Prasad is the grace of God , with this attitude we should take prasad from pure devotees for spiritual improvement. 1. Remember , Krishna and Krishnaprasad are identical. To remember that, the body is abidyajala , prayer must be uttered. 2. You need to use your right hand to eat or drink. 3. You have to think that Krishna has tasted this Prasad. (We have to think of the grace that Krishna has bestowed on us , but we can also remember the reception of **** Krishna and Sri Chaitanya Mahaprabhu's palace.) Nothing should be said except chanting the praises of **** Krishna and His grace. 5. Don't throw away the offerings. Prasad should not set foot. . Hands , feet and face should be washed before and after receiving prasad . . Drink a glass of water 1 hour before meals , or after meals , do not drink during meals, you can drink something hot if absolutely necessary. . Srila Prabhupada says- Fill your stomach with 1/4 part water , 1/2 bug with food , and the remaining 1/4 part with air. Can't eat too much.