Question Summary:
Can a man and woman eat, drink and cook when they slept together and need a ghusl?

Question Detail:

Can a man and woman eat, drink and cook when they slept together and need a ghusl?

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
It is permissible to eat, drink and cook after having intimate relations prior to taking a ghusl (ritual bath).  However, it will be better if somebody washes his mouth and hands prior to consuming anything.[i] 

It will not be permissible for a person in janābah (ritual impurity) to[ii]:
1)     Perform salāh
2)     Recite an āyah of the Qur῾ān
3)     Touch the Qur῾ān
4)     Enter the masjid
5)     Perfrom tawāf  (circumambulation of the ka῾bah)
And Allah Ta’āla Knows Best
Mawlana Faraz Ibn Adam,
Student Darul Iftaa
UK
 
Checked and Approved by,
Mufti Husain Kadodia.
www.daruliftaa.net