Vapour temperature passing 78 degrees

[desahih]

Hello all,
so i was fermenting with wild yeast starting with a 1.045 sugar wash and adding some grapes to it so it can start fermenting....the wash fermented to 1.01 after 4 weeks with an airlock.
i know it did not finish completely but i was curious to know what resulted as flavor from the grapes wild yeast,so i started distilling it twice with my lab glassware (pot still) just to condense the grapes flavour and it really did(smells like grapes) ,now im distilling for the third time with some aniseeds to make raki, but the problem is that the vapour temperature quickly jumped to around 88 degree celcius ,did i produce rubbing alcohol or else what is this concerning me?

thanks in advance

[MtRainier]

At 88C you should have 72 percent alcohol in the vapor according to the graph on the parent site.

https://homedistiller.org/theory/theory/strong" onclick="window.open(this.href);return false;" rel="nofollow

[desahih]

sir the question is ...is it ethanol or something else?like rubbing alcohol
thank you

[Yummyrum]

It’ll be ethanol with water in it .

Eventually you will get go 99°C which will be mostly water with a tiny bit of alcohol in it .

The temperature on a pot still is not related to the type of alcohol .
In a very good reflux still , yes , temp can be indicative of the type of alcohol that is coming over ..... but it can also be effected by the proportions . If there is a lot more of one type than the other the temp will swing in favour of the higher proportion in a similar way that a Pot still does .

Bottom line is don’t trust your thermometer . They only tell you the temp ... not what is in the spirit .

If you distill into small jars, about 15-20 in a run , your sense of taste and smell will guide you as to what is drinkable and what is not .

Rubbing Alcohol (or Isopropal Alcohol) , like Methanol is not produced in home distilled beverages that need be concerned about .

[desahih]

thank you sir!