The Apostle of Allah(saws) then said: When one of you eats food, he should say: O Allah, bless us in it, and give us food (or nourishment) better than it.

Hadith - Abu Dawud, Narrated Abdullah ibn Abbas

Don’t lean on something while eating

Hadith - Sahih Bukhari 7:310, Narrated Abu Juhaifa

Allah’s Apostle(saws) said, “I do not take my meals while leaning (against something).”

Eating does not nullify wudu

Hadith - Sahih Bukhari 7.316, Narrated Ibn Abbas

The Prophet(saws) ate of the meat of a shoulder (by cutting the meat with his teeth), and then got up and offered the prayer without performing the ablution anew. Narrated Ibn ‘Abbas: The Prophet took out a bone with meat on it from a cooking pot and ate of it, and then offered the prayer without performing ablution anew.

Hadith - Sahih Bukhari 7.365, Narrated Suwaid bin An Numan

We went out with Allah’s Apostle(saws) to Khaibar, and when we reached As-Sahba’, the Prophet asked for food, and he was offered nothing but Sawiq. We ate, and then Allah’s Apostle(saws) stood up for the prayer. He rinsed his mouth with water, and we too, rinsed our mouths. Narrated Suwaid; We went out with Allah’s Apostle(saws) to Khaibar, and when we reached As-Sahba’, which (Yahya says) is one day’s journey from Khaibar, the Prophet asked for food, and he was offered nothing but Sawiq which we chewed and ate. Then the Prophet(saws) asked for water and rinsed his mouth, and we too, rinsed our mouths along with him. He then led us in the Maghrib prayer without performing ablution again.

Lick your fingers before wiping them

Hadith - Sahih Bukhari 7.366, Narrated Ibn Abbas

The Prophet(saws) said, “When you eat, do not wipe your hands till you have licked it, or had it licked by somebody else.”

Eating when it’s time for Salah

Hadith - Sahih Bukhari 7.374, Narrated ‘Aisha

The Prophet(saws) said, “If the Iqama for (’Isha’ prayer is proclaimed and supper is served, take your supper first.”

Silver or gold cups or plates

Hadith - Sahih Bukhari 7.337, Narrated Abdur Rahman bin Abi Laila

We were sitting in the company of Hudhaifa who asked for water and a Magian brought him water. But when he placed the cup in his hand, he threw it at him and said, “Had I not forbidden him to do so more than once or twice?” He wanted to say, “I would not have done so,” adding, “but I heard the Prophet(saws) saying, “Do not wear silk or Dibaja, and do not drink in silver or golden vessels, and do not eat in plates of such metals, for such things are for the unbelievers in this worldly life and for us in the Hereafter.”

Is okay to first ask what the food is first?

Hadith - Sahih Bukhari 7.303, Narrated Khalid bin Al Walid

That he went with Allah’s Apostle(saws) to the house of Maimuna, who was his and Ibn ‘Abbas’ aunt. He found with her a roasted mastigure which her sister Hufaida bint Al-Harith had brought from Najd. Maimuna presented the mastigure before Allah’s Apostle(saws) who rarely started eating any (unfamiliar) food before it was described and named for him. (But that time) Allah’s Apostle(saws) stretched his hand towards the (meat of the) mastigure whereupon a lady from among those who were present, said, “You should inform Allah’s Apostle of what you have presented to him. O Allah’s Apostle! It is the meat of a mastigure.” (On learning that) Allah’s Apostle(saws) withdrew his hand from the meat of the mastigure. Khalid bin Al-Walid said, “O Allah’s Apostle(saws)! Is this unlawful to eat?” Allah’s Apostle(saws) replied, “No, but it is not found in the land of my people, so I do not like it.” Khalid said, “Then I pulled the mastigure (meat) towards me and ate it while Allah’s Apostle(saws) was looking at me.”