One lb. vacuum packed instant yeast which works more conveniently than the kind needing proofing, this purchase says "made in 2016."  The label says "good until 2018," but it can be put into an airtight container in the freezer and it will last even longer.  Although Amazon does not have the best price, this is often an economical buy, especially helpful for busy bakers.  This is considered a quality yeast.  Recommended.