Grape Seed Oil Presser

Grape seed oil extraction process. Grape seed oil is an emerging high-end oil in the oil market. Many people may not be familiar with it. Grape seed oil is extracted by pressing grape seeds through special grape seed oil extraction equipment. Since the grape seeds themselves are harmless, they are extracted the oil is basically suitable for use by all groups of people, and is favored by many consumers in the market. The oil is light green, and it is a real "green oil" in terms of color and composition.

The extraction process of grape seed oil is divided into seven steps: grape seed → impurity removal → crushing → softening of oil seeds - frying seeds → cake pressing → pressing → filtration.

① Remove impurities. Use the cleaning and screening machine to separate impurities such as grape pomace from grape seeds to obtain clean grape seed oil.

② Broken. The grape seeds are covered with a hard shell, and the grape seeds are crushed by a crusher. It is convenient to press the cake and improve the oil yield and work efficiency.

③ soften. Soak the crushed grape seeds in 14% soft water for 25-45 minutes, and the temperature should be controlled between 60-70°C to achieve the purpose of softening the grape seeds.

④ Stir fry. If there is too much water in the softening process, direct extraction will affect the quality of the oil. Use a frying machine to fry the ingredients, control the temperature and moisture, and increase the oil yield.

⑤Press cake. Immediately put the fried grape seeds into the cake ring to press the cake, which is thick in the middle and slightly thinner around, which is convenient for pressing.

⑥ Squeeze. Immediately put the grape seeds that have just been pressed into cakes into the press, and the oil temperature is high, and the pressing effect is good. If the temperature is too long, the temperature will reduce the difficulty of pressing, and reduce the oil yield.

⑦Filter. The squeezed grape seed oil can be filtered by wrapping the oil outlet with filter cloth, or by purchasing advanced oil filter equipment on the market, which can remove oil residue and oil foam to improve the quality of edible oil.

There are two common processes for extracting grape seed oil: pressing and leaching. The quality of the pressed grape seed oil is higher, and the grape seed oil produced by the pressing process has a higher degree of nutrient retention, especially the grape seed oil processed by the cold pressing process, which can more fully retain the nutrition of the grape seed oil. The equipment required for the pressing process is flexible in configuration and low in investment, but the residual oil rate in the pressing process is high, resulting in waste of resources, and is suitable for small-scale high-end grape seed oil processing.

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