12mm. Giant salamander is a snack in northern Jiangsu, which is made of starch. To make giant salamander, you need a funnel with the size of 12 mm, and pour it into a pot with holes while it is hot. "Funnel fish", also known as "baby fish", is another method of making bean jelly. It leaks out with a colander. It looks like a small fish, so it is called a funnel fish.