arctic78
Grandmaster Brewer
I just done the math to work out my boil off rate per hour for my boil kettle and it seems wrong to me because in all the brews i have done so far it has been less than what i got from the equation. I have been keeping track off the amount of water that i start the boil with and what goes into the fermentor at the end of the boil once it has reached pitching temp. on average so far it is around 2.8 litres. ( .739 Gallons ) i loose from the start of the boil until it enters the fermentor.
When i work it out using this method ( which i found on here)
pi*(diameter of kettle in Cm/2)*(diameter of kettle in Cm/2)*0.00428
i get 4.1 litre/hour boil off ( my kettle diameter is 35cm )
SO........ 3.1415*(35/2)*(35/2)*0.00428 = 4.11 Litre/hour
I am guessing that there must be other factors which are not accounted for in this equation so i am wondering if i am wrong somewhere or i am doing something wrong in my brew process or if this is something others have found when they do the math.???
any advise would be greatly appreciated
When i work it out using this method ( which i found on here)
pi*(diameter of kettle in Cm/2)*(diameter of kettle in Cm/2)*0.00428
i get 4.1 litre/hour boil off ( my kettle diameter is 35cm )
SO........ 3.1415*(35/2)*(35/2)*0.00428 = 4.11 Litre/hour
I am guessing that there must be other factors which are not accounted for in this equation so i am wondering if i am wrong somewhere or i am doing something wrong in my brew process or if this is something others have found when they do the math.???
any advise would be greatly appreciated