Refrigerate after opening. Consume within 2-4 weeks.
These jams are very different from typical jams. They don't use pectin, thickeners, stabilizers or extra sugar to thicken the products (that's a good thing!). Therefore, the texture is less viscous than common brands. Keeping your jam refrigerated will make it thicker, and for baking applications, feel free to heat jam with a bit of cornstarch.