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Single-stage high-strength process with up to 18 % discharge acidity
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The Acetator is filled automatically with the pre-programmed quantity of alcohol, water, and nutrients. These quantities need to be calculated only once. The control system (Acetocontrol) maintains fermentation temperature and controls the addition of alcohol and nutrients according to the preset values. Total concentration is carefully increased, and the alcohol is quickly converted into acetic acid.
By using this method, an increased output from the Acetator is achieved, reducing necessary storage space and transportation capacity.
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Fig. 1
High-strength fermentation process
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Dual-stage high-strength process with up to 20.5 % discharge acidity
In the dual-stage process two Acetators are combined into one functional unit. When the programmed residual alcohol concentration is reached in the first Acetator, or “Donor”, it is processed further in a second, smaller Acetator, the “Acceptor”. Optimum alcohol and nutrient supply to the bacteria inside the Donor guarantees an optimum total concentration. When the vinegar is processed in the Acceptor, a secondary increase in the total concentration can be achieved by carefully adding alcohol and nutrients at the appropriate moment. This achieves a continuously high acidification until the discharge acidity is reached. The target residual alcohol concentration is 0 %.
Similar to the single-stage high-strength process: a full conversion of alcohol into vinegar is achieved, further minimizing the necessary storage space and transportation capacity. This eliminates or reduces secondary concentration processing.
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