Forgetting to measure the final gravity

Getting the statistic about the beer that you brewed is important for the serious homebrewing, but it may be forgotten by some destruction sometimes.

I bottled my hoppy wheat ale and hoppy wit today.

I forgot to measure the final gravity, but it was too late as I already put the priming sugar into the beer in the bottling bucket.

However, I needed to find the gravity of the beer after fermentation to find out the ABV.

Here is the answer I came up with by going back to the high school chemistry experiment.

The difference of the boiling point between different types of fluid.

Boiling point of Ethanol is 78℃, hence the Ethanol contained beverage, Beer has lower boiling point than the pure water.

Here is the graph I referred to find out the ratio of the ethanol in the beer after it boiled at 95℃.

This is really helpful, but not as accurate as using the gravity before and after fermentation.