Filtration, separation and purification

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Biotechnology, medical and laboratory

Filtration Solutions for Distilled Spirits Production

Alfa Chemistry serves distilled wine manufacturers of various sizes with filtration, clarifying, and purification solutions. Alfa Chemistry's technology and experience can help you decrease costs, enhance productivity, and maintain total process control, from cold mist removal in whiskey to activated carbon treatment in vodka and final filtration of mixed water. Our patented deep filtration technique was created specifically to fulfill the demanding needs of distilled liquor filtration and can provide long-term value to your manufacturing process.

Chill Haze Removal/Stabilization

Fusel oil, fatty acids, and their esters are among the many compounds found in distilled spirits. These water-insoluble chemicals form micelles and generate turbidity, commonly known as a cold mist when water is added. While some chemicals (such as fatty acid esters) can create chilly fog, they also have a significant favorable impact on the sensory qualities of spirits. It's critical to remove the long-chain acid esters linked to the undesirable flavor while keeping the short-chain fatty acid esters linked to the good fragrance components.

Distilled Spirits

Most brown spirits are cooled to a temperature below 0 °C (32 °F) to match customer expectations for pure spirits and to avoid the production of cold fog after bottling. This causes cold mist to form, which can subsequently be removed using filtering.

Although mechanical particle removal is important in the filtration process, the major mechanism for cold mist removal is adsorption, making filter-based technology an excellent choice.

Alfa Chemistry's experience in spirits filtering is unrivaled, with both the old flat filter plate and the new innovative modular configuration. To learn more about our cold mist filtration products for whiskey and other brown and white spirits, please contact us.

Spirits Activated Carbon Filtration

To properly clean alcohol by removing contaminants, activated carbon filtration is utilized. Its structure is haphazard and flawed. The structure has a wide range of pore diameters and is highly porous. Macropores (diameter higher than 50 nm), mesopores (diameter 2-50 nm), and micropores (diameter less than 2 nm) are the three types of pores. Carbon has a huge surface area (about 2500 m2/g) due to its unique pore structure, which allows it to absorb a wide range of chemicals.

The basis of activated carbon is that it adsorbs the substances it is removing. Despite the fact that it can remove particles, it does not have a major filtering effect. Color removal, as well as fragrance and flavor correction, are common uses of activated carbon in distilled spirits.

Distilled Spirits

It's critical to properly establish the needed requirements of the final processed product before using activated carbon in your process. Following the specifications, small-scale or laboratory studies can be used to determine which grade of activated carbon is most effective and how much carbon media is required per volume of product.

Please contact Alfa Chemistry for assistance in selecting the appropriate product from its activated carbon product line, which includes bulk powdered activated carbon (PAC) and flake activated carbon.

Our products and services are for research use only and cannot be used for any clinical purpose.