If the video is a tutorial for home projects, the "paper" it refers to is likely made from recycled scraps:
: The paper is smoothed (calendered), coated if necessary, and wound into large reels. DIY Recycled Paper Craft 1_4900441527345480175.mp4
: The pulp is beaten to improve fiber bonding and then diluted with water to create a slurry. If the video is a tutorial for home
: Raw wood material is broken down into cellulose fibers using chemical or mechanical methods. coated if necessary
: Blend scrap paper with water in a blender until it becomes a thick pulp.