I love Swiggy as they delivered food on time . They always deliver a proper fresh, hygiene , healthier and tastier food with proper packing. I ordered food every week, till now I have not seen any food related issues. believe me. One can even call them and can ask how much time it will take to deliver our food and can ask for to deliver fresh food.
Sometimes issue occurs about the cancelled orders but the money always be refunded by them on time. So for this situation one needs not to be Panik and Angry but can reorder whatever they want. So, I believe that it is safe.