What is Ultrasonic Coating for Food Manufacturing?

The nozzle of the ultrasonic atomizing spray machine has a unique fine fog spray, which can reduce overspray, save costs and reduce air pollution. The ultrasonic food coating system is a non blocking and self-cleaning device that uses high-frequency ultrasonic atomization of liquids instead of high-pressure forcing of liquids through small holes. The ultrasonic food coating system opens up more possibilities for food applications, and precise coatings enable antibacterial coatings to be uniformly applied to product surfaces. 

 

Ultrasonic food coating systems are most commonly used for spraying the following coatings:

1. Prepare antibacterial coatings on food.

2. Additive coatings, such as seasoning agents, sweeteners, or nutritional supplements.

CBD (cannabidiol) and THC oil coatings. In applications where uniform coverage is necessary to protect the product or control the dosage of added ingredients, ultrasonic coatings can provide significant process advantages. Ultrasonic spraying can add a very thin amount of additive layer to the prepared product before packaging.

1. Antibacterial coating on cooked meat products

The ultrasonic coating system is very suitable for spraying a small amount of antibacterial coating onto ready to eat foods, such as prepared meat slices, to improve product safety and extend shelf life. A uniform nano layer antibacterial solution enables manufacturers to deposit very thin micro coatings, which cannot be achieved by other deposition methods. The system can reduce 1-2 logarithms by directly spraying antibacterial solution on prepared meat during slicing operation, providing an economical alternative to high cost HPP.

 

Compared with pressure spraying or other coating methods, the droplet distribution of ultrasonic nozzles is more compact, so the advantage of food safety coatings is that they can achieve more uniform coverage with thinner material layers. This is a major benefit for food manufacturers who want to control the quantity of ingredients in an effort to shift towards clean labeling.

2. Coating additives on pre made food, such as seasoning or sweeteners, nutritional supplements, etc

Very thin film of sweeteners and flavoring agents and nutrients can be added to products such as cereals and granola bars, making ultrasonic spray attractive for applications such as sugar reducing or vitamin enhancing products.

 

3. CBD (cannabidiol) and THC oil coating on tea bags

Low dose accuracy makes ultrasonic spray an ideal choice for applying a small amount of CBD or THC oil to tea bags and medicines. In these coating applications, the main advantages are almost no or no overspray components and repeatable and accurate dosage.

 

Application of ultrasonic food coating system:

Antibacterial coating on packaging

Properly moisturize the product

Light oil coating can prevent food from adhering to the substrate

Antibacterial coating

Fresh coating

Seasoning paint

Decorative glaze and egg coating
Moisture-proof coating

Health products, essence and herbal extracts

 

 

Advantages of ultrasonic food coating system:

 

Controllable flow rate and reduced overspray
Accurate, uniform, and thin coating
Save costs and reduce air pollution

Non blocking, automatic cleaning
Wide range of sprayable solvents, water/oil/alcohol solvents, or solid particle suspensions
Droplets easily adhere to the surface of the product
Effectively control spray width
Uniform film ensures the effectiveness of the sprayed material