PURPOSE: To obtain a packaged drink resistant to the coagulative precipitation of protein and having excellent quality and aging stability by packing a fermented milk, etc., in a gas-permeable container, etc., and sealing the container together with a deoxidation agent with a gas-barrier packaging material.

CONSTITUTION: This packaged material is provided with a packaging material having gas-barrierness, a fermented milk or lactic acid bacteria beverage packed in a gas-permeable container or a container processed to attain gas-permeability and sealed in the packaging material and a deoxidation agent sealed in the packaging material together with the fermented milk or lactic acid bacteria beverage packed in the gas-permeable container or the container processed to attain gas-permeability.