[Oyk]

Not sure but looks okay visually.

Some peepur wouldn't eat cai png for dinner in Singapore because some of the dishes were leftovers from lunch. 

By right, lunch leftovers should be discarded if the seller is ethical. It would of course be a loss to him, at cost or at potential sales revenue depending on how you want to see it.

Suppose it's not discarded, it should be of no cost to the seller, and every dollar earned is 100% profit.

Fish might be sold deep fried without any gravy or zhup. What's unsold would be braised in a dark sauce for sale the next day's lunch. There are many dishes which can be recycled by using strong seasoning to mask the mild rotting.

If your stomach is strong you can still digest the food and slaughter the bacteria without vomiting or diarrhea.