What is the permitted preservative for biriyani paste? How much quantity of what should I add? My masala has ginger, garlic paste, onions, tomatoes, green chillies, spice powders, mint and coriander leaves, lemon juice, salt, gingely (sesame) oil, and ghee. I need it to have a shelf life of one week outside the refrigerator!
Am preparing this curry paste and packing in plastic airtight containers and freezing. After freezing I courier to whoever needs it. Hence for transportation purposes, I need a shelf life of one week.