Freshly broken glass is one of the most dangerous things to keep around the house. If you want to smooth the edges to salvage a glass bottle, object or sheet, you will need a tool or substance that sands down the edge until it is smooth and opaque.
Purchase a multi-pack of emery cloth from a home improvement or hardware store. A multi-pack has coarse to fine grit cloths, which will aid in smoothing the edges. The emery cloth is preferred over sandpaper because it is easier to run around the edges. If you can’t find emery cloths, buy sanding blocks that are wider than the object.
Wrap the coarse-grit cloth around a sanding block or a piece of wood to begin. Wear gloves to minimize contact with your hands.
Place the glass in your non-dominant hand. Hold it steady.
Work the emery cloth up around the sharp edge. Work for about 10 to 20 seconds on each inch, and then move along the rest of the edge.
Repeat with a medium-grit emery cloth. Then, repeat with a fine-grit emery cloth.