Introduction to macadamia：

  Macadamia nuts are suitable for growing in mild, humid, and low wind areas. The suitable temperature is 10℃-30℃, and the most suitable temperature is 15℃-30℃. If it is lower than 10℃ or over 30℃, it is not good for nut growth. Planting and growing in areas with annual rainfall of 1000-2000 mm, the results are better.

Macadamia processing steps：

1. Picking
The ripe macadamia nut just picked from the tree has a layer of green peel, the moisture content of the peel is as high as 45%, and the moisture content of the kernel is about 23-25%. It is best to spread the fruit by hand on the same day after harvesting to prevent the fruit pile from heating up, because when the unpeeled fruit is stored, heat will be generated due to respiration (the temperature can sometimes rise by as much as 10 ℃), and high temperature will cause the seed. Spoiled.
2. Peel off
There are two types of peeling: manual peeling and mechanical peeling. At present, due to the low output of nuts in my country and fear of damaging the nuts, manual peeling is used. Before manual peeling, it is best to put the nuts with the skin on the drying ground for 1-2 days to let the peel dry and dehydrate and crack, and then it is easy to peel it by hand. However, mechanical peeling requires high green moisture content in the peel, and peeling is performed when the kernel and shell are in a compact state.
3. Slit
Find a tool to "slit". If you want to make milky macadamia nuts, you must first open the seams. The function of the seams is to let the flavor blend into the nuts. If you want to make original macadamia nuts, you can sew them after making them.
4. Seasoning
The next step is the seasoning. If you want to make a creamy flavor, you can buy the ingredients, adjust the concentration, and soak the fruit.

Macadamia drying process：

  Drying is a very critical part of the macadamia processing process, which directly determines the shelf life of the fruit and the taste and quality of the final product. The just harvested macadamia nut contains up to 30% moisture, and the drying process can reduce the moisture content to 2-3%, the fruit will shrink to the inside of the shell and separate from the inner wall of the shell, so that the kernel will not be damaged when the fruit is broken.
The drying temperature and time generally used for shelled fruits are as follows: 30°C (2-3 days) -38°C (1-2 days) -45°C (1-2 days) -50°C (drying until required Water content). The drying time is affected by the following conditions: the initial humidity of the fruit, the relative humidity of the air, and the final moisture content required by the fruit after drying. If the initial humidity, relative air humidity, and the required moisture content are all high, the time required is longer, otherwise it is shorter, depending on the specific situation.
The initial drying temperature should be determined according to the moisture content of the kernel of the shelled fruit. If the moisture content of the kernel is 25-28%, the drying temperature should not exceed 30°C. When the moisture content of the nuts is 15-20%, the drying temperature should not exceed 38°C. When the moisture content of the nuts is 10-15%, the drying temperature should not exceed 45°C. When the moisture content of the nuts is 7-10%, the drying temperature should not exceed 50°C. Otherwise, the shell will break during the baking process and the kernel will brown, which will reduce the quality of the product.

Recommendation of macadamia dryer/drying machine

Commercial 100-3000kg/h large amount of dehydration wide application and easy operation

  Heat pump drying machine use the principle of inverse Carnot cycle. It absorbs low-temperature heat energy in the air, which becomes high-temperature heat energy after efficient heat collection and integration by the heat pump system, and is transported to the drying room for cyclic heating and drying of materials.It refers to exhausting the hot and humid air in the drying room directly to the outside of the drying room through dehumidification device, and then replenishing natural fresh air.

  Hot air circle drying machine belongs to high temperature heat pump unit. Its working principle is: the working fluid of the heat pump is compressed by the compressor, becomes high temperature and high pressure gas, enters the condenser, condenses and liquefies the heat, and is used for air heating in the drying room. The moisture in the material is vaporized and evaporated by the form of hot air, and the evaporated water vapor is discharged by the moisture discharge system, thereby achieving the purpose of drying the drying material.


Macadamia drying video：