Benefits of Counter Pressure Filling Craft Beverages using a Micro Canning System
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Dissolved Oxygen in beverages can shorten beverage shelf life. Counter Pressure Filling is the best solution to getting lower Dissolved Oxygen because the beverage is kept in solution and filled under pressure with limited exposure to atmosphere. With a Gravity Fill, oxygen is being en-trained into the beverage throughout the filling process.
Oxygen trapped in the package contributes to flavor degradation in beverages. The greater the amount of oxygen, the greater the flavor degradation. The oxygen content of a package can be measured to determine if the origin of the oxygen is from the headspace, or from the filling operation.
Oxygen is introduced into the package in two places: during filling or in the headspace through incomplete fobbing. Filler oxygen can come from air already in the beverage or from air trapped in the can or filler tubes during filling. Headspace oxygen comes from air trapped in the headspace after the end is applied. Because the partial pressures of gases in the headspace and the liquid are not at equilibrium immediately after packaging, all packages should be shaken before measuring dissolved O2
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