For soft treatment, put the quilt, spoon, bowls and chopsticks in boiling water, then take them out and gently wipe them off, and the colloid will fall off naturally
Hard treatment , use a dishwashing steel ball to wipe off the colloid, but it may damage the gloss of the tableware
After the wallpaper is removed, it is normal for the colloid to exist. Repaint the wall, or replace the wallpaper with a new one. The wall needs to be polished as a whole, and the colloid will naturally be polished away during polishing