The Smoked Salmon Sampler gift set includes salmon, creme fraiche and blinis. The refrigeration times are listed below.
-Smoked salmon can be refrigerated, unopened, for 2-3 weeks
-Creme fraiche, unopened, can be refrigerated for up to one month.
-Blinis, unopened, can be refrigerated for up to one month.
See:  https://www.gourmetfoodstore.com/storingserving-smoked-salmon-15156