Hops & Hop Products – Best Before Date
Hop products are produced from a naturally grown organic material, which is liable to variable rates of deterioration after harvest and/or processing. Although processing of raw hops helps to preserve their important constituents, it is strongly
recommended that hop products are:
1. Stored correctly (according to Product Specification Sheets)
2. Used within a short period of time after opening the package
3. Used within the recommended ‘best before date’ to guarantee best results.
Hop products that are past the ‘best before date’ may still be suitable for use but might provide a slightly altered brewing value. ...
Source
Simon H. Steiner, Hopfen, GmbH, Mainburg, Germany