Agar-agar is a Malaysian name with a Japanese origin. Chinese settlers in the east Indies introduced the use of Japanese agar as a food to the locals. To make the product more inviting to the population they called it “agaragar” which is a name used by the Malayans to indicate certain seaweeds and the jellies that were made from them.
In Japan, agar agar is known as kanten, meaning “cold sky.” This name refers to the fact that the seaweed used was prepared on cold winter days or high up in the mountains where it was always cold.
The Dutch and other Europeans living in Indonesia later learned to use this Japanese ingredient for making delicious fruit and vegetable jellies while introducing the art of jelly making to their friends and relatives in Europe.
In Japan, the agar-bearing seaweeds are gathered from rocks between mid- and low-tide marks. Divers also collect the seaweed.