Before opening
Keep the packaging in a cool, dry place away from light. Avoid the oven, radiators and damp areas. The date and instructions on the label are the reference for the product you bought.
After opening
Seal the bag well after use. If the closure is not airtight, use a clean, dry container with a lid. Serve what you need in a bowl and store the rest; keep wet utensils out of the packaging. Kernels need the same care, despite being convenient for cooking.
Organise your bags
The Green Beat 1 kg selection contains two 500 g bags. Finish one while keeping the other sealed. There is no universal storage time after opening: it depends on the product and storage conditions. If you notice mould, an unusual smell or a concerning change, do not eat it and contact the seller.
Keep exploring
Avoid moisture and temperature changes
Keep the bag away from cooking steam and direct sunlight. A clear jar is convenient, but store it inside a cupboard rather than on a sunny shelf. If the label recommends refrigeration, follow it and use a tightly closed container to limit moisture and odours from other foods. Keep the original label, including the date and allergen information, when moving pistachios into another container.
Choose a practical bag size
A smaller bag can leave fewer nuts open after a single recipe. If you cook with pistachios regularly, two separate bags let you keep one sealed while using the other. Mark the opening date on your container and retain the packaging instructions. Homemade pistachio paste is a different preparation: blending or adding ingredients changes how you should store it. Do not assume it will keep for the same time as the unopened bag.