Jun 26, Coffee beans last as long as the condition are right. Find out what it means Let's be frank: Until it stops tasting good. Let's break down what. Aug 5, The longer you keep a pot of drip coffee hot, the greater the denigration of the Quora User is right though: ~30 minutes or so is about how long it tastes fresh. . Can one make as good of a coffee concentrate using instant coffee as one can. Apr 21, Answers related to sell and use by dates, how to store coffee and how to tell if coffee is How long is Coffee good for when prepared in a dish?.