Is it fardh or Sunnah to cover the hair whilst eating?
Do you get sin for not covering your hair whilst eating?
In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
It is neither Fardh nor Sunnah to cover the hair of the head whilst eating.
There is therefore no sin in leaving the hair of the head uncovered whilst eating.
However, it is Mustahab (commendable) to cover the head while eating. Covering the head is also a mark of respect.
And Allah Ta’āla Knows Best
Mufti Ebrahim Desai;
 آب كي مسائل اور ان كا حل، ج 8، ص 39، مكتبة لدهيانوي