Ethanol-Releasing Sachets: Prolong Shelf Life of Snacks, Food, and Baked Goods

With the properties of ethanol that inhibit the growth of microorganisms (especially molds), ethanol-releasing sachets effectively extend the shelf life of food products. They are ideal for food products prone to spoilage by mold, such as bread and bakery products. These sachets help maintain moisture and softness in foods, ensuring that bread, pastries, mooncakes, dorayaki, chiffon cakes, and butter cakes do not dry out, harden, or become tough.

Principle Ethanol-releasing sachets are designed to be placed inside food packaging to extend the shelf life of baked goods. They are categorized as food additives. These sachets are small, made from a special type of film that contains ethanol. When placed inside a sealed food package, the ethanol is slowly released, adjusting the internal environment of the package. This inhibits the growth of microorganisms such as bacteria and molds, thus effectively prolonging the shelf life of food products. The sachets are also safe for consumers.

Composition of Ethanol-Releasing Sachets The sachets contain ethanol mixed with silica powder (silicon dioxide) and are encased in a polyethylene terephthalate (PET) film, which is resistant to water and oil.

How to Use Place the ethanol-releasing sachet inside the food packaging and seal the bag or can tightly. The sachet will gradually release ethanol vapor, which spreads throughout the package. This vapor effectively inhibits mold growth, thereby extending the shelf life of the food products.

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Safety in Use

Ethanol-releasing sachets are made of non-toxic materials. Although they are not edible, and there is a warning label stating "Do not eat," they pose no serious health risks if accidentally ingested. However, if the sachet is consumed whole, it may cause injury to the digestive tract due to the sharp edges of the sachet. Seek medical attention immediately if this occurs.

Heating Food with Ethanol-Releasing Sachets

The sachets can safely come into direct contact with food and are safe to heat with food. The components of the sachets are safe and meet packaging standards.

However, the seal of the sachets may break when exposed to heat. Remove the sachet from the food packaging before heating. If the seal breaks due to heat, avoid letting the contents leak out and dispose of the sachet (if the contents leak, the food may change in appearance and taste, and should not be consumed).

Storing Food with Ethanol-Releasing Sachets in Refrigerators or Freezers There is no problem with storing the sachets in refrigerators or freezers. However, the release of ethanol will be slower or temporarily halted. The lower temperature will also slow down mold growth.

Comparing Mold Growth Time in Food Samples with and Without Ethanol-Releasing Sachets

How to Choose the Size of Ethanol-Releasing Sachets

1) The actual gram amount of ethanol per sachet used depends on the type of food and the water activity value (Water Activity). Refer to the chart below, calculated based on 100 grams of food.

2) For food weighing more or less than 100 grams, calculate using the following formula.

After selecting the appropriate size of the ethanol sachet, place it in the actual food packaging to check the quality and expiration date of the product. If the formula, weight, or type of packaging changes, the test should be repeated.

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