Q 2: Could you explain in detail
how Zakah (obligatory charity) should be paid on groceries
after one year?
To pay Zakah on groceries, you have to evaluate the commodities that you have in the grocery store after the passage of one complete Hawl (one lunar year calculated from the time a property reaches the minimum amount upon which Zakah is due). And Allah knows best.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.