Pictures of the microstill

The microstill is complete! After publishing the drawings and the bill of material, a few days ago, I assembled the microstill. To be honest, the assembly was faster than expected. It took only 9 hours in total. Now, I cannot wait for the first runs to be completed.

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Energy balance

As outlined in the post on process design the microstill recycles the heat. The hot product vapor condenses in the heat exchanger and the wash is preheated. The energy is transferred from the vapor to the fresh wash. No additional coolant is required. The wash serves as coolant. What interested me is the balance between […]

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Process Design

Having studied the process in depth, the initial calculations required some adjustments. The basic principles of distillation are outlined somewhere else. I did find the explanaitions by Zymurgy Bob very helpful. If I assume a 10 % wash to be distilled, the wash with start to boil 90 °C. The vapor that is forming will […]

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Brandy Measurement

There have been a number of trails using the prototype. The brandy, I was preparing with a friend did taste well strait from the still. As I had not alcohol meter at hand we guessed that it would have about 40 % (ABV). Starting with an ordinary white wine that is not bad, considering it […]

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Batch vs. Continuous Distillation

Roughly speaking there are two kinds of distillation. The continuous and the batch process. The latter is used in the traditional pot still. One volume of wash or wine is applied to the pot and heated up to evaporate the alcohol. The volume of the pot still may vary. The bigger the volume the more […]

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Distillation Process

Distillation is a process of separating components from a liquid mixture. They separate based on their difference in volatility. It is commonly used to prepare spirits or beverages with high alcohol content. Alcohol poses a higher volatility compared to water. So increasing the temperature of a mixture of the two, vapor bubbles begin to form. […]

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