Prepared coffee begins to lose its optimal taste moments after brewing, so only make as much coffee as you’ll drink. Otherwise, coffee can be poured into a warmed, insulated thermos to be consumed within an hour. Don’t worry – old coffee probably isn’t dangerous, just not very appealing.
Side Note:Try to enjoy your coffee as thoughtfully as it was prepared – take in the aroma, and notice the flavors in each sip. Many people have been instrumental in bringing it to your cup