Up to five distillation sections are calculated. For example with meanings like foreshots, heads, hearts and tails. For this one enters the end of each section. For example, "until 60%abv current distillate".
For each section you can enter an individual number of theoretical plates. So, for example, for a slow foreshots separation, a higher number than for the hearts. "1" means a theoretical potstill without any rectification. "2" means one additional distillation, quasi a double distillation in a single distillation process. One can (and should in a potstill distillation) also enter decimal values. Because a normal potstill has 1.1 - 1.3 theoretical plates depending on the construction (for example lid insulation and riser length). But you can also enter higher values (reflux distillation).
The contraction is taken into account.
Since the computer calculates the distillation in mini-steps, depending on the entered endpoint in up to 1000000 completely calculated mini-steps, the calculation can take a few seconds.
Since almost no one has an absolutely accurate thermometer, an additional "thermometer error" can be specified. This can be determined with the help of the calculator Thermometer Error. Temperatures entered or calculated here are then those displayed on this thermometer, not the real ones.

Information about our boiling point data and the influence of atmospheric pressure