A method for deodorizing collagen peptide by removing the caprylic odor of the peptide. A collagen peptide solution undergoes an initial preliminary heating and a second primary heating, after which the solution is depressurized and cooled. The resulting deodorized collagen can be used in foods, beverages, or other compositions.本發明之課題係提供減低膠原臭味之膠原胜肽之脫臭方法及使用其之飲食品及組成物。解決方法係將經低分子化之膠原胜肽溶液加溫，較佳為再進行減壓，而發現具有減低膠原特有臭味之明顯的脫臭效果，簡單即可完全脫臭化，且具備膠原胜肽品質的安定化及藉由省略殺菌步驟而製造之效率化之膠原胜肽之脫臭方法及含有其之飲食品或組成物。
