Utilizing the cryogenic temperature (-196°C) of liquefied nitrogen
Cryogenic and Freezer Grinding is applicable even to Food Materials with high moisture and oil content.
Pulverization of food materials while maintaining their unique taste, aroma and heat-sensitive components
Frequently asked questions
Q
Why food materials are ground at cryogenic temperatures?
A
Because moisture and oil content inside the food materials are frozen/hardened at cryogenic temperatures, making it easier to pulverize the materials that are difficult to pulverize at room temperature.
Q
What are the characteristics of cryogenic and freezer grinding?
A
Since food materials are ground at cryogenic temperatures, their heat-sensitive ingredients, aroma and taste are not lost.
Also, nitrogen is used to prevent oxidation during the grinding process.
Also, nitrogen is used to prevent oxidation during the grinding process.
Q
Can food materials with high moisture/oil content be ground?
A
Yes, they can. Moisture/oil content can be also frozen and ground.
However, the state after grinding depends on the material.
[Food materials that contain much moisture content]:
The powdery state is maintained when they are frozen; however, after a few minutes of standing at room temperature, they gradually melt and eventually become liquid.
* We can also perform the entire process until drying using technologies of our partner company.
[Food materials that contain much oil content]: (Solid oil at room temperature → hydrogenated fat, chocolate, etc.)
Since even after the grinding, the temperature does not rise above room temperature, the powdery state can be maintained regardless of the ground particle size.
[Food materials that contain much oil content]: (Liquid oil at room temperature → sesame seed, almond, etc.)
When they are left to stand at room temperature, oil may seep out from the inside and they may turn into paste, just as with food materials that contain much moisture content. However, if they are not ground too finely, they can be kept in powder form at room temperature.
The particle size can be adjusted during the trial grinding, so please feel free to consult us.
However, the state after grinding depends on the material.
[Food materials that contain much moisture content]:
The powdery state is maintained when they are frozen; however, after a few minutes of standing at room temperature, they gradually melt and eventually become liquid.
* We can also perform the entire process until drying using technologies of our partner company.
[Food materials that contain much oil content]: (Solid oil at room temperature → hydrogenated fat, chocolate, etc.)
Since even after the grinding, the temperature does not rise above room temperature, the powdery state can be maintained regardless of the ground particle size.
[Food materials that contain much oil content]: (Liquid oil at room temperature → sesame seed, almond, etc.)
When they are left to stand at room temperature, oil may seep out from the inside and they may turn into paste, just as with food materials that contain much moisture content. However, if they are not ground too finely, they can be kept in powder form at room temperature.
The particle size can be adjusted during the trial grinding, so please feel free to consult us.
Q
Can allergens be ground?
A
Our company regulations do not allow materials containing buckwheat/peanut allergens to be brought into our factory.
However, other allergens can be ground. * Please disclose the contained allergens in advance.
However, other allergens can be ground. * Please disclose the contained allergens in advance.
Q
How do you clean the grinder?
A
Since the materials to be ground change daily, we disassemble the grinder parts by hand and clean them by hand with neutral detergent.
After cleaning, we check the cleanness of the grinder by subjecting it to ATP/coliform group wipe tests and sterilize it with
hypochlorite water, and after confirming that there are no abnormalities in the test result values, we assemble the grinder.
After cleaning, we check the cleanness of the grinder by subjecting it to ATP/coliform group wipe tests and sterilize it with
hypochlorite water, and after confirming that there are no abnormalities in the test result values, we assemble the grinder.
Q
What are the uses of ground materials?
A
They are used for a wide range of applications, including beverages, confectionery, baked goods, seasonings and health foods.
Q
What specific food materials can be ground to what degree of fineness?
A
Food materials can be ground to an average diameter of over 10 to several 100 μm.
However, productivity needs to be considered separately.
However, productivity needs to be considered separately.
Q
Does cryogenic and freezer grinding have a sterilizing effect?
A
Because the food materials are rapidly frozen, the cryogenic and freezer grinding has little sterilizing effect, and bacteria present in the materials remain in a state of hibernation.
Although bacterial growth does not occur during the grinding process, there is a possibility that latent bacteria in the materials may appear since the surface area becomes large.
Although bacterial growth does not occur during the grinding process, there is a possibility that latent bacteria in the materials may appear since the surface area becomes large.
Q
Can you accept only trial grinding?
A
Yes, we can.
◎ Trial samples: up to 6 conditions/day
◎ Quantity of raw materials: Up to 30 kg/day in total
◎ Cost: 100,000 yen/day *If raw material size exceeds 5 mm square, please consult us separately.
◎ Factory acceptance criteria: Coliform group negative/0.1 g and general viable bacteria count 100,000/g or less (We can also conduct a bacteria test at the time of trial grinding.)
◎ Particle size attained: Average diameter over 10 to several 100 μm * Depends on the raw materials.
◎ Trial samples: up to 6 conditions/day
◎ Quantity of raw materials: Up to 30 kg/day in total
◎ Cost: 100,000 yen/day *If raw material size exceeds 5 mm square, please consult us separately.
◎ Factory acceptance criteria: Coliform group negative/0.1 g and general viable bacteria count 100,000/g or less (We can also conduct a bacteria test at the time of trial grinding.)
◎ Particle size attained: Average diameter over 10 to several 100 μm * Depends on the raw materials.
Q
Can the food material be any size?
A
Food materials of 5 mm square or smaller are suitable for our grinders.
However, we also have a primary grinder, so please consult us about food materials larger than 5 mm.
However, we also have a primary grinder, so please consult us about food materials larger than 5 mm.
Q
How long does it take to deliver trial ground product after sending the food materials?
A
Normally, the date of trial grinding is decided before the food materials arrive at our company, so we will return the product within 2 weeks after the food materials arrive at our company.
Q
What are the benefits of contract grinding?
A
It avoids the risks associated with large capital investment and complicated operations, including work management and high-pressure gas and pollution (dust and noise) control, and makes it easy to obtain the desired powder.
Q
What is your grinding capacity?
A
We have grinders of different capacities (trial, medium-size and large machines), so we can grind food materials from several kilograms to 3,000kg/day.
* The grinding method is the same for all machines.
* The grinding capacity varies depending on the nature of the material, shape of the material and desired particle size.
* The grinding method is the same for all machines.
* The grinding capacity varies depending on the nature of the material, shape of the material and desired particle size.
Q
What is the yield (yield rate) and the amount of loss during grinding?
A
Normally, the yield is 95 to 98%. The amount of loss is 5 to 10 kg for the trial machine and 30 to 50 kg for the medium-size and large machines.
Q
Others
A
Please contact us using the Inquiry Form.
Our representative will contact you.
Our representative will contact you.
