Answered by: Alimah Siddiqa al-Farsiyyah
Question:
How should you wash dishes if a non-Muslim ate or drank in them?
بِسْمِ اللهِ الرَّحْمنِ الرَّحِيْم
In the name of Allah, the Beneficent, the Merciful
Answer:
If a non-Muslim eats/drinks from a dish, the dish can be washed as normal. There is no need for extra cleaning as the essence (physical body/saliva) of a non-Muslim is not haram by default. This is mainly regarding the dish and not their leftovers. Their leftovers would also be clean provided that their mouth was pure of impurities.[1]
Only Allāh Ta’ālā knows best
Written by Alimah Siddiqa al-Farsiyyah
Checked and approved by Mufti Mohammed Tosir Miah
Darul Iftā Birmingham
[1] Ascent to Felicity pg.65