Milk storage tanks are typically made of stainless steel-a corrosion-resistant, easy-to-clean material that meets food safety standards. The tank features a double-walled design with insulation material in the intervening space to minimize the impact of temperature fluctuations on milk quality.

The top is fitted with a sealed lid to prevent external contamination, while the bottom is equipped with a discharge valve for easy dispensing or transfer. Some tanks also include an agitation system to prevent fat separation during storage.