You’ve feasted your way through the first few days of Chinese New Year but no matter how much you think you ate, we’re sure you have some leftover goodies and kuehs piling up. Don’t hold on to them for too long because they do expire and you don’t want to get sick eating mouldy food! So, from bak kwa to love letters and mandarin oranges, here’s when you should throw out these tasty treats: Almond cookies and other nut cookies 1 month if kept in an airtight container at room temperature after they’re opened.