How to fold the filter paper before putting it into the funnel (round filter paper)? It's better to have a schematic.

Generally, a circular filter paper is folded twice to form a fan shape, just like the above, so that there are three layers on one side and 1 layer on the other side.

If you want to put it in the funnel, you should trim the filter paper. Cut it flat.

Because it is usually used for filtering.

Therefore, glass rods are also used, and glass rods are used for drainage.

It should be noted that the place where the glass rod contacts is where the filter paper is stacked three times.

I don't know if you understand what I said.

I can't open the map. ...