What is the ideal time to consume the Coffee Concentrate? Does it start to taste different after a set time? P&R Team November 12, 2020 04:02 Updated Ambient: 3 months Once opened, best consumed within 2 weeks. Related articles Why Pioneer? I like Porter St. I love the Pioneer blend but is the taste of the Pioneer coffee concentrate similar to the beans? What are the ingredients of the coffee concentrate? Is Coffee Concentrate still safe to drink/use if it's more than 8 weeks? Comments 0 comments Please sign in to leave a comment.