Food Additives Under Control: How to Prevent Quality and Safety Losses During Storage and Handling

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Food additives such as emulsifiers, stabilizers, preservatives, or sweeteners play a key role in modern food production. However, their effectiveness and safety depend not only on proper formulation but also on storage and handling conditions. Even minor mistakes, such as incorrect temperature, humidity, or contamination, can lead to raw material degradation, loss of functionality, or even compromise the health safety of products. In this article, we will focus on the most common issues that arise when working with food additives and show how to effectively prevent them.

Temperature and humidity: Key parameters often underestimated

The correct temperature and humidity are crucial for maintaining the quality and safety of food additives, yet they are often overlooked in practice. Most additives, such as emulsifiers, preservatives, or thickeners, require storage at temperatures between 15–25 °C. Higher temperatures can accelerate the degradation of active substances, while low temperatures may cause crystallization or changes in consistency. For example, some polysaccharides lose their thickening properties if exposed to temperatures below 10 °C.

Humidity is equally important—the ideal range is between 40–60%. Excessively high humidity promotes the growth of microorganisms and can lead to caking of powdered additives, while low humidity causes drying and loss of functionality. For sensitive substances such as vitamins or probiotics, it is advisable to use sealed packaging with desiccants or an inert atmosphere. Regular monitoring of these parameters using dataloggers and calibrated measuring devices is essential for preventing losses.

Proper Packaging and Handling: How to Prevent Contamination and Spoilage

The choice of suitable packaging material and its proper handling are often underestimated factors that can significantly affect the quality of food additives. Most additives should be stored in their original manufacturer’s packaging, which is designed to minimize contact with oxygen, moisture, and light. For example, metal or multi-layer foil packaging provides better protection than standard plastic bags, especially for light-sensitive substances such as colorants or antioxidants.

When handling packaging, it is important to follow hygiene principles and prevent cross-contamination. Opened packages should be immediately resealed and labeled with the opening date. For powdered ingredients such as sweeteners or flavorings, it is advisable to use tools made of stainless steel or food-grade plastic to avoid metal particle contamination. It is also important to adhere to the FIFO (First In, First Out) principle to prevent exceeding the shelf life. Regular inspection of packaging for damage or deformation helps avoid unexpected quality losses.

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Documentation and traceability: Why it is important and how to manage it effectively

Proper documentation and traceability are essential for ensuring the safety and quality of food additives, particularly in relation to legislative requirements such as REACH or the EU regulation on food additives. Each batch should be accompanied by a technical data sheet, safety data sheet (SDS), and certificate of analysis (CoA), which contain information on storage conditions, shelf life, and any restrictions. These documents must be retained for at least two years from the date of consumption of the additive.

An effective traceability system also includes records of inputs and outputs, including temperature and humidity logs during storage. In practice, the use of barcodes or QR codes on packaging has proven effective, enabling quick retrieval of information about a specific batch. Digitizing documentation with specialized software facilitates searching and reduces the risk of human error. Regular internal audits and staff training ensure that all employees follow established procedures and understand their importance for the safety of the final product.

Staff Training: How to Minimize Human Errors and Increase Awareness

The human factor is one of the most common causes of errors in the handling and storage of food additives. Even the slightest negligence, such as improperly sealing a package or ignoring CLP/GHS warning symbols, can lead to serious quality or safety issues. Therefore, it is crucial to regularly train staff not only in basic hygiene principles but also in specific procedures for handling different types of additives.

Training should include practical demonstrations of proper storage, handling of packaging, and reading safety data sheets. Employees should be familiarized with the risks associated with specific substances, such as the possibility of allergic reactions with certain emulsifiers or the flammability of solvents used in food coatings. It is also important to practice procedures in case of an accident, such as a leak or contamination. Regular repetition of training and knowledge testing helps maintain a high level of awareness and minimize the risk of errors.

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Cross-contamination: The hidden enemy in food production facilities

Cross-contamination represents one of the greatest risks when handling food additives, which can lead to serious degradation of raw materials and finished products. This issue occurs when substances with different properties or allergens come into contact, either directly (e.g., mixing) or indirectly (via work surfaces, tools, or packaging). A typical example is storing aromatic substances next to absorbent materials, such as starches or salts, which can easily absorb odors and lose their functional properties.

Prevention requires strict separation of raw materials based on their chemical nature and intended use. It is recommended to implement color-coding for packaging and tools (e.g., shovels, funnels) for different categories of additives—for example, red for allergens, blue for sweeteners, and green for preservatives. Regular cleaning and disinfection of storage areas and equipment are also important, using cleaning agents approved for the food industry. For sensitive raw materials, such as enzymes or probiotics, it is advisable to work in separate zones with controlled temperature and humidity.

Light Exposure and Oxidative Stress: How to Protect Light-Sensitive and Reactive Additives

Many food additives are sensitive to light and oxygen, which can lead to their degradation, loss of efficacy, or even the formation of undesirable substances. Typical examples include vitamins (e.g., vitamin C or B2), natural colorants (such as curcumin or chlorophyll), or certain antioxidants, which degrade under UV radiation. Oxidative processes are further accelerated by the presence of metal ions, which may originate from unsuitable packaging materials or contaminated tools.

To minimize these risks, it is crucial to store light-sensitive additives in opaque or dark-colored containers, ideally made of materials with low oxygen permeability (e.g., multilayer films with an aluminum layer). For large packages, it is advisable to use inner liners made of inert materials such as polyethylene or polypropylene. Storage areas should be equipped with controlled lighting with minimal UV radiation and a temperature not exceeding the recommended values (usually 15–25 °C). For extremely sensitive substances, the use of a protective atmosphere with nitrogen or carbon dioxide, which displaces oxygen from the packaging, can be considered.

Regular Inspection and Analysis: How to Detect Problems Before They Cause Damage

Even when all preventive measures are followed, gradual deterioration in the quality of food additives may occur, particularly with raw materials that have limited shelf life or are sensitive to external conditions. Therefore, it is essential to implement a system of regular inspections to enable early detection of deviations from the required parameters. The basis is a visual inspection of packaging and the raw materials themselves—looking for signs of damage, changes in color, odor, or consistency, which may indicate the onset of degradation.

For deeper analysis, standard testing methods are used, such as determining moisture content, measuring pH, or tests for microbiological contamination. For certain additives, such as emulsifiers or thickeners, it is important to monitor their functional properties (e.g., viscosity or the ability to form stable emulsions). Samples should be taken according to a predetermined plan, ideally from different parts of the storage area, to account for any uneven conditions. The results of inspections must be documented and compared with previous measurements, enabling the identification of trends and the implementation of corrective actions before serious deterioration of raw materials occurs.

Ensure reliable supplies and expert support

Proper storage and handling of food additives are the foundation for the consistent quality of your products. GCG Group provides detailed safety and technical data sheets with recommendations for storage, handling, and use for every raw material supplied. Our experts will be happy to advise you on selecting suitable conditions for specific types of additives and help minimize risks associated with their use. Contact us – or browse our catalog of over 1,300 products.