Fish Drying Process

Dried fish is rich in protein and various nutrients, and has a longer shelf life than fresh fish and is more convenient to transport, so it is very popular among people. There are many types of dried fish, which are made by fully drying fresh fish. Both marine and freshwater fish can be made into dried fish. The processing of dried fish has a bright future in the food industry. Dried fish can be made into small snacks, pet food and other commodities. Its price is much higher than that of fresh fish. Dried fish increases its added value. If you want to join the drying fish business, then you need to understand the process of drying fish. Next, I will share with you the process of drying fish.

Fish drying process
The first step is to salvage mature fingerlings.
The second step is the laparotomy.
What should be paid attention to during laparotomy is to clean up the liver inside, and to ensure that it is clean and does not leave foreign bodies.
The third step is salting.
This step is more important. If this step is not handled properly, it will lead to the phenomenon that the following fish cannot be dried, and it will also cause the fish to stink.
The fourth step is to control the drying time.
The general drying time for fish is 22-28 hours. While controlling the time, it is necessary to control the temperature. The general temperature is divided into two stages to dry.
The first stage is control, the temperature is about 20 ℃, and the humidity is generally about 40%.
The temperature of the second stage is generally 35~40℃, and it is more appropriate to control the humidity between 15%.
These are the steps for drying most fish. Then, I will give you the details of the fish dryer you need to dry fish.
One is an all-in-one fish drying machine, and the other is a fish drying room. They all use closed-loop drying not only to not be affected by the weather, but also to ensure that the fish will not be contaminated. Both machines use heat pump air heat source, which is energy-saving and environmentally friendly, and will not pollute the environment. The drying temperature and drying time can be controlled. They are made of stainless steel, and the quality is guaranteed. The difference between them is that the all-in-one drying machine has a small output and is suitable for small producers and households, while the fish drying machine has a large volume and is the best choice for large producers

1. All-in-one fish drying machine

The one is the all-in-one fish drying machine. The all-in-one fish drying machine is equipped with a cart with trays and tray racks. When drying fishs, we put them in trays, put them on the tray racks of the cart, and then push them into the fish drying chamber for drying.
The heat source of the fish all-in-one drying machine is air energy. The heat in the air is absorbed by the heat pump compressor. After compression and release, a large amount of high-temperature hot air can be obtained, so as to achieve continuous and uniform drying and processing of fishs. The operation of this all-in-one drying unit is relatively simple, simply plug in and dry.

Components of all-in-one fish drying machine

One set all-in-one fish drying machine contains: power jack, water outlet,exhaust air outlet, supporting wheels, PLC controller pancl, door lock, observation window,circulating air inlet, outlet for hot and dry air, PP tray, stainless steel tray, supporting racks for trys. The fish all-in-one machine has compact structure, good energy-saving effect, wide application range, high drying quality, convenient operation, simple installation and disassembly. It is the best drying equipment for small businesses, drying experiments and scientific research. The user only needs to connect the power to use, it is the easiest to operate fish drying machine.

Technical parameters of fish all-in-one drying machine

All-in-one heat pump dryer list
type	machine size(MM)	Capacity (KG)	power	total power（kw）	Qty of cart	Qty of tray	cart size(MM)	tray size(MM)
1P	1180×680×1800	50-80	1	1	—	15	—	600×800
3P	2100×930×2100	120-300	3.5	3.5	—	40/60	—	600×800
8P	4000×1960×2050	650-1000	8	8	8	232	600×800	600×800
The drying machine can be equipped according to the user's requirement and the production demands.

Advantages of all-in-one fish drying machine

1. Stainless steel 304 material. The whole machine uses stainless steel material, can work a long time, and keep better heat preservation, bottom have wheeler, can move easily.
2. Great energy saving. Heat pump system design, low energy consumption, can save 75% energy than traditional electricity element heating.
3. Wide application easy operation. Fit for wide application, seafood, fruit, food, spice, herbs, etc all can use it to dry.
4. Gentle drying. Temperature range 40-80°C, low temperature dehydrate processing can better keep material nutrition, during drying, no need to move the machine.

2. Fish drying room

The another type of drying machine is the fish drying room. The fish drying room is equipped with a trolley with trays and tray racks. When we dry the fishs, we put the fishs in the tray, on the tray rack of the cart, and push it into the fish drying chamber to dry. Fishs are putted on the shelf car and enter the closed cycle drying room for drying without any pollution in the process. The heat source of the fish drying room is air. The heat in the air is absorbed by the heat pump compressor. After being compressed and released, a large amount of high-temperature hot air can be obtained, so as to achieve uniform drying and processing of fishs.

Components of fish drying room

One set fish drying room contains: heat pump drying host, dryer chamber, fan frame with fan, trolley with tray. The dryer chamber is used 100mm polyurethane insulation board, supporting 304 stainless steel trolleys and trays. The main structure of the fish drying room is divided into: heat pump drying dehumidifier, drying room, hot air circulation system, dehumidification system, automatic intelligent control system, and high-efficiency waste heat recovery dehumidification device.

The working principle of fish drying room

The fish heat pump drying machine uses the reverse Carnot principle to let the hot air circulating blower dry the vegatable. Heat Pump Dryer Compressor Heat Exchanger Blocked Radiator (External to Machine). Compressor and other equipment make up the refrigerant circulation system. The fan impeller rotates, the outside air enters the oven, passes through the heater, forms hot air, and then enters the studio through the gap of the air distribution plate, and a large amount of hot air in the circulating flow continues to enter the new air inlet for supplementation. The moisture discharged after recovery is discharged from the exhaust port. The whole cycle makes the vegatable heated evenly and achieves the purpose of drying.

Technical parameters of fish drying room

heat pump dryer list
type	machine size(MM)	Capacity (KG)	power	Qty of fan	fan power	total power（kw）	Qty of cart	Qty of tray	cart size(MM)	tray size(MM)
3P A	3500×2200×2200	200-400	2.25	6	0.25/pc	3.75	6	78	670×810	600×800
8P A	5300×2200×2800	450-750	6	12	0.37/pc	10.44	6	156	1210×870	600×800
15P	7500×3000×2800	900-1500	11.25	12	0.55/pc	17.85	12	312	1210×870	600×800
1P D	1180×680×1800	50-80	1	—	—	1	—	15	—	600×800
3P D	2100×930×2100	120-300	3.5	—	—	3.5	—	40/60	—	600×800
8P D	4000×1960×2050	650-1000	8	—	—	8	8	232	600×800	600×800
The drying machine can be equipped according to the user's requirement and the production demands.

Advantages of fish drying room

1 Wide application. Suitable for fish, fruit, seafood, spice etc different kinds of material.
2 High drying capacity. Each hour can drying 3-4kg water.
3 Better drying effect. Can better keep material shape , color , nutrition etc.
4 Simple operating. PLC touch screen control panel , can set up temperature, humidity in advance  
5 Low energy consumption. Heat pump system, can save 70% energy.

The above are the two fish drying machines we commonly use. At the same time, our company also produces mesh belt fish drying machines and microwave fish drying machines. If you are interested in fish drying machines or want to know more about fish drying machines, please feel free to contact us.

Fish drying process video：