PROBLEM TO BE SOLVED: To provide a functional gel which contains a large quantity of gas inside of the gel.SOLUTION: Water or a solution of low viscosity is poured into a container 1, and a gas is poured into the water or the solution of low viscosity to produce bubbles 5. After some microbubbles 5a in the produced bubbles 5 are broken by a liquid pressure to disappear without reaching the water surface, a gelling agent is added to the water or the solution of low viscosity to generate gelled water or solution of low viscosity.COPYRIGHT: (C)2012,JPO&INPIT【課題】 内部に大量の気体を保持した機能性ジェルを提供する。【解決手段】容器1内に水または低粘性の溶液を入れ、この水または低粘性の溶液中にガスを送り込んで気泡5を発生させ、発生した気泡5のうち微細な気泡5aの一部が水面まで到達せずに液圧によって圧潰して消失するのを待って、前記水または低粘性の溶液にゲル化剤を添加し、前記水または低粘性の溶液をゲル化せしめる。【選択図】 図1