Coffee bags are packaging containers specifically designed for coffee beans/ground coffee, with the core objectives of preserving freshness and preventing oxidation, releasing the continuous carbon dioxide produced after roasting, protecting against light and moisture, and facilitating retail and transportation; packaging is a crucial aspect in determining the retention of flavor. Roasted beans will continuously release CO₂, and without an exhaust design, the bag body is prone to bulging or even bursting; at the same time, it is necessary to prevent the intrusion of oxygen, moisture, and light to avoid the oxidation of coffee oils and the loss of aroma.

The eight-sided sealed bag is the mainstream structure of high-end self-standing zipper bags, consisting of 8 sealed edges: front, back, left and right sides, and bottom. The bag body is cubic, standing stably with a flat display surface, making it a high-end packaging form for industries such as food (including coffee, tea, snacks), pet food, and daily chemical products.

The eight-sided sealed bag is the mainstream structure of high-end self-standing zipper bags, consisting of 8 sealed edges: front, back, left and right sides, and bottom. The bag body is cubic, standing stably with a flat display surface, making it a high-end packaging form for industries such as food (including coffee, tea, snacks), pet food, and daily chemical products.

Yellow kraft paper bags, also known as natural-colored kraft paper bags, exhibit a yellowish-brown hue overall. This color gives the kraft paper bag a more natural and environmentally friendly feel. Due to their inherent yellow color, yellow kraft paper bags sometimes struggle to highlight printed colors and are more suitable for printing simple patterns.