Application of potassium citrate in beverages and formulation optimization


Potassium citrate is a multifunctional ingredient widely used in food and beverages, mainly used to adjust acidity, provide potassium and improve flavor. This article will explore the application of potassium citrate in beverages and its important role in formulation optimization.

Basic properties of potassium citrate

Potassium citrate is the potassium salt of citric acid with a chemical formula of C6H5K3O7. It appears as white crystals or powder, dissolves easily in water, and has a mildly sour taste. As a common food additive, potassium citrate is widely used in various beverages, foods and health products.

The main functions of potassium citrate in beverages

1. Acidity regulation Potassium citrate is an excellent acidity regulator. It can balance the pH value of beverages, thereby improving taste and stability. In carbonated beverages, fruit juice drinks and functional beverages, appropriate acidity can enhance the flavor of the product and make it more pleasant.

2. Potassium source supplementation In modern diets, people often do not consume enough potassium. Potassium citrate can be used as a potassium source in beverages to help replenish the potassium needed by the human body, which helps maintain normal cell function, heart health and blood pressure levels.


3. Preservation and freshness Potassium citrate can work synergistically with other preservatives in some cases to extend the shelf life of beverages. It can inhibit the growth of microorganisms and maintain the original flavor and taste of the beverage.

4. Improve taste Potassium citrate can blend the taste of sweeteners and reduce unpleasant aftertastes. It is used in conjunction with sweeteners to make the taste of beverages more rounded and natural.

Application of potassium citrate in beverage formulation optimization

1. Determine the optimal dosage In beverage formulations, the dosage of potassium citrate needs to be precisely controlled. Too much may cause the beverage to be too acidic and affect the taste; too little may not achieve the desired effect. Generally speaking, the dosage of potassium citrate in carbonated beverages is about 0.1-0.3%, and in juice beverages is about 0.05-0.2%.

2. Synergy with other ingredients Potassium citrate is often used in combination with acidity regulators such as citric acid, phosphates, and lactic acid to achieve the best acidity control effect. In potassium ion-fortified beverages, it can be used in combination with potassium salts such as potassium chloride to increase potassium intake without affecting flavor.

3. Balance of flavor and taste In beverage formula optimization, the interaction between potassium citrate and ingredients such as sweeteners and flavors needs to be considered comprehensively. Potassium citrate can effectively neutralize the aftertaste of sweeteners, making the sweetness of beverages purer. For different types of beverages, the formula should be tailored to the specific requirements to achieve the best taste.

4. Adjustment of production process During the beverage production process, the timing and method of adding potassium citrate will also affect the quality of the final product. It is usually recommended to add potassium citrate during the preparation stage and ensure full dissolution and uniform distribution. In addition, care should be taken to avoid excessive heating to avoid affecting the stability of potassium citrate.


Actual case analysis

Case 1: Application in carbonated beverages In the original formula of a certain brand of carbonated beverage, the acidity regulator mainly used citric acid, but because too much citric acid would cause the taste to be too sour, potassium citrate was used to replace part of the citric acid. The pH value of the adjusted beverage is more stable, the taste is softer, and the potassium content is increased, which is popular with consumers.

Case 2: Application in functional beverages In order to enhance the effect of electrolyte supplementation after exercise, a functional beverage uses potassium citrate as the main potassium source. By accurately adjusting the dosage of potassium citrate, the beverage effectively improves the potassium ion supplementation effect while maintaining palatability, and the product has achieved good market response after it was launched.


As an important food additive, potassium citrate plays a variety of important roles in beverage formulas. From acidity regulation to potassium source supplementation, to taste improvement and preservation, potassium citrate has demonstrated its unique advantages. In the process of beverage formula optimization, the scientific and rational use of potassium citrate can significantly improve the quality and market competitiveness of the product. As consumers’ demand for healthy drinks continues to increase, the application prospects of potassium citrate in the beverage industry will be broader.