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- Verticales: they form and they fill the package vertically.
- Horizontales: they form and they fill the package horizontally.
- Mixtas: they form the package in vertical and they fill it in horizontal.
Types of packaging
The challenge is in packaging the coffee so that the aroma of the coffee just toasted stays.
*En atmosphere: the air is not modified that surrounds to the product, therefore will be presence of oxygen and water steam, with the consequent risk of oxidation of fats and humidificación. If the complex material takes valve, eviteramos that the water oxygen and steam renew (the single valve allow the gas passage from the interior to the outside of the package).
*Envases to the emptiness for coffee.
The air of the interior of the package is eliminated.It is very important to consider the existing relation between the pressure of internal CO2 and the made depression, because if the depression is not sufficient the internal CO2 can lead to the softening of the package.So that this does not happen has to pay attention a time of degassing of the coffee before being packaged, obtaining a balance between the degassing and the losses of aroma.
*En modified atmosphere:the air is sustituído by an inert gas (nitrogen).With this, with the election of a good envelope and with a unidirectional degassing valve, we will be able to for a long period maintain the characteristics of a time coffee.
The valves can be internal or external and in any case they go welded to the structure multilayer that forms the package.They consist of:
- A cellulose filter
- A plate with two orifices
- A rubber disc
- An external cover together with the rubber disc by a silicone point. Some companies have the solution of a special valve which evacuates gases of toasts of the package. Thus, the coffee can be packaged right after being toasted maintaining all its aroma. The valve simultaneously avoids the consequent oxygen entrance and the lost one of aroma. The valve can be used for whole grains and worn out coffee and can be located so much inside the package, as in the outer part. In this way, the package to the emptiness stays signs and the coffee also can be packaged in soft packages maintaining all its aroma.
- An external cover together with the rubber disc by a silicone point. Some companies have the solution of a special valve which evacuates gases of toasts of the package. Thus, the coffee can be packaged right after being toasted maintaining all its aroma. The valve simultaneously avoids the consequent oxygen entrance and the lost one of aroma. The valve can be used for whole grains and worn out coffee and can be located so much inside the package, as in the outer part. In this way, the package to the emptiness stays signs and the coffee also can be packaged in soft packages maintaining all its aroma.
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