The column

The fractionating column consists of a 21/z to 3 ft. length of 1V4" tubing. The rule of thumb is that the height of a column should be at least 15x its diameter, which would mean a column height of 19" minimum, but why not be generous and add a few more inches. The higher the column the better (within reason), because it provides a larger number of solid/vapour interfaces up the length of the column and therefore more re-distillations. Two and a half to three feet is convenient but you won't wish to go much over 3 ft. or you will hit the ceiling!

At the top of the column (see Figure 3) an elbow is provided for the passage of vapour across to the stillhead condenser and for a thermometer to measure the vapour temperature. At the base of the column there is a series of adapters, including a 11/4" union, to go from the 11/4" diameter of the column to the 3/4" pipe fitting on the top of the boiler.

The column must be well insulated to ensure a stable temperature regime up the full length of the column while it is refluxing.

Making Your Own Wine

Making Your Own Wine

At one time or another you must have sent away for something. A

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