Walnut Jute Sack Manufacturing Walnut jute sacks are made from natural jute fibers and are 100% biodegradable. They are strong and durable, making them perfect for storing and transporting walnuts. The manufacturing process begins by soaking the jute fibers in water for several hours. This makes them pliable and easier to work with. Next, the fibers are placed on a loom and woven into a fabric. Once the desired width and length is achieved, the fabric is cut to size and sewn into a sack. The final step is to add a drawstring or handles, so the sack can be closed and carried. Walnut jute sacks are a great eco-friendly alternative to plastic bags. They are reusable and will decompose naturally when disposed of.