Okay, who reheats their coffee in a microwave oven?
Heathen! (per the coffee experts)
But IF you do, do it at A LOW heat level.  
It won’t taste AS bad. (yes it will…prob worse)

What about a re-roast and repost of a podcast? 
Let’s be bitter like day-old coffee…about crazy coffee drinkers, Street Curb Curiosity – The Podcast

A fresh (okay re-brewed) podcast here: APPLE PODCASTS