Kraft paper is a strong, durable paper made from wood pulp through a process called the kraft process. This method involves cooking wood chips in a chemical solution, which breaks down the fibers and removes lignin, resulting in a thick, brown paper. It is commonly used for packaging, bags, and boxes due to its resilience and ability to hold weight. Kraft paper is often unbleached, giving it a natural brown color, but it can also be bleached for a lighter appearance. It is recyclable and biodegradable, making it an environmentally friendly choice for various applications, including crafts and wrapping.