PROBLEM TO BE SOLVED: To provide a storage tank enabling efficient deodorization, and to provide a deodorization system and a deodorization method.SOLUTION: A storage tank 3 is provided in a liquid sterilization system for manufacturing liquid products in containers, used to store the liquid product filling the containers, and includes: an air supply port 13 located at one position of its side part and used to supply steam into the storage tank 3 an upper discharge port (an air supply/discharge port 12) located at its upper part and used to discharge the steam supplied to the storage tank 3 and a lower discharge port (a liquid discharge port 11) which is located at its lower part and used to discharge the steam supplied to the storage tank 3.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2017,JPO&INPIT【課題】効率的な脱臭が可能な貯留タンク、脱臭システム及び脱臭方法を提供する。【解決手段】容器入りの液体製品を製造する液体殺菌システムに備えられ、容器に充填される液体製品を貯留しておく貯留タンク3は、その側部の一箇所に当該貯留タンク3内に蒸気を給気するための給気口13を備え、その上部に当該貯留タンク3に供給された蒸気を排気するための上側排気口(給排気口12)を備え、その下部に当該貯留タンク3に供給された蒸気を排気するための下側排気口(排液口11)を備えている。【選択図】図3