Coffee beans’ greatest enemies are air, moisture, heat, and light. To preserve your beans’ fresh roasted flavor and taste of your coffee, store them in an opaque, air-tight container at room temperature. Keep your beans in a dark and cool location. Avoid places that are too warm.Our Stand Up Coffee Bag is ideal to keep your home roasted coffee fresh, keep in small pack, share with friends or preserve your bulk purchases frozen with this high barrier gusset stand up pouches. The one-way valve lets excess air get squeezed out, but doesn't allow it back in. Keeping air and moisture out to prolong your dried food. The thick foil and LLDPE layers provide UV protection for keeping everything fresh.