Convenience Food

Impact of Uncontrolled Humidity

Our eating habits have transformed due to changes in lifestyle, technological advancements, and time constraints, especially in urban areas. The shift towards convenience and snack foods has become more prevalent. Convenience food, also known as tertiary processed food, refers to commercially prepared food designed for easy consumption. These products are often available as hot, ready-to-eat dishes, room-temperature shelf-stable items, or refrigerated/frozen products requiring minimal preparation.

Consequences of High Humidity

Many processed foods, such as candies, biscuits, fruit powders, dry soup, instant coffee, tea, sugar, powdered drink mixes, dried vegetables, soup concentrates, and milk powder, share a common characteristic—they are hygroscopic and susceptible to high relative humidity. Moisture absorption alters their appearance and makes them less appealing, turning them soggy or rubbery. Uncontrolled humidity during processing, packaging, and storage can be problematic in various aspects of the food industry, including storage, production, packing, and processing. Despite high-temperature processes during food production, exposure to humid environments can lead these products to absorb moisture from the surrounding air.

Some of the common problems faced by manufacturers of convenience food due to high humidity are:

● Clumping of Ingredients: On humid days, issues like salt clumping in shakers or sticky powders hindering machinery operation can arise.

● Packaging Challenges: Even a simple task like packaging cake mix becomes challenging in humid conditions, affecting both the flow of the mix and the machinery’s functionality.

● Lumping or Caking of Powders: Moisture in the air can lead to lumping or caking of powdery health foods during processing, affecting their free flow in manufacturing or packaging.

● Airveying Issues: Granular or powdered materials transferred through pneumatic conveying, also known as airveying, can face challenges due to humidity.

Additional Effects

Beyond the immediate operational issues, high humidity can lead to:

● Higher Operational Costs: Frequent breakdowns and increased maintenance needs lead to higher operational costs.

● Quality Control Issues: Inconsistent product quality can result in batch rejections and increased quality control scrutiny.

● Customer Dissatisfaction: Variations in product quality can lead to customer dissatisfaction and potential loss of business.

Causes of Uncontrolled Humidity

Several factors contribute to uncontrolled humidity in the production and storage of convenience food:

● Ambient Environmental Conditions: Seasonal and weather changes can lead to fluctuations in the humidity levels of the ambient air entering the production and storage areas.

● Inadequate Humidity Control Measures: Without proper humidity control systems, the production and packaging areas are susceptible to variations in air moisture content.

● Operator Dependency: Manual adjustments by operators to account for varying humidity levels can lead to inconsistent results and increased dependency on human intervention.

Recommendation

To mitigate the impact of uncontrolled humidity, Josem should implement the following measures:

● Desiccant Dehumidifiers: Using high-performance desiccant dehumidifiers ensures that the inlet air remains consistently dry, regardless of external conditions.

● Automated Monitoring Systems: Implementing automated systems to continuously monitor and adjust humidity levels can reduce dependency on manual interventions.

● Regular Maintenance: Ensuring regular maintenance of the spray drying systems and dehumidifiers to maintain optimal performance.

Solution

Josem Solution for Humidity Control

Josem offers specialized dehumidification solutions that address the challenges posed by uncontrolled humidity in spray drying systems. By supplying controlled and consistent dehumidified air to the inlet point, Josem’s dehumidifiers enhance the performance and output of spray dryers, resulting in higher quality powder production. Key benefits include:

● Improved Powder Quality: Consistent humidity control leads to uniform drying, resulting in higher quality and consistent powder products.

● Reduced Operational Breakdowns: Dry air prevents powder from sticking to machinery, reducing maintenance needs and operational disruptions.

● Optimized Energy Consumption: Dehumidified air requires less energy to heat, leading to reduced energy costs and increased efficiency.

● Increased Throughput: Stable and controlled drying conditions improve the overall throughput of the spray drying system.

Josem’s desiccant dehumidifiers continuously feed dry air to the spray dryer chamber, maintaining low dew points and ensuring optimal drying conditions. This technology has been successfully implemented in coffee powder spray drying units and is applicable across various industries, including:

Food Powder: Coffee, spices, seasoning, fruit & vegetable concentrates, herbal food, milk, tea, spray-dried eggs, etc.

● Industrial: Ceramic materials, paint pigments, chemicals, etc.

● Pharmaceuticals: Antibiotics, encapsulation, enzymes, vitamins, etc.

● In conclusion, integrating Josem’s dehumidification solutions into our spray drying systems will significantly enhance product quality, operational efficiency, and overall production reliability. This strategic investment will ensure that Josem maintains its competitive edge and meets the highest industry standards.