Ebu To Ibu Conversion?

[Enerjex]

Hi all, was just looking on the Muntons website at a kit I brewed (and am currently enjoying a glass of) and the bitterness is listed in EBU not IBU. Is there a conversion so I can work out the IBUs? Are they just the same thing? Cheers

 

[MHB]

1:1
they are the same thing

MHB

 

[Enerjex]

thanks mate :beerbang:

 

[thomniville]

if that was true then there would only be EBU or IBU. too calculate the difference you can use the formula:

IBU = -0.0065E^2 + 1.1526E – 0.6197

the E stands for EBU.

good luck!

 

[grandadrob]

so 20 ebu = 19.8 ibu
50 ebu=40.7 ibu
100 ebu = 49.6 ibu

surely it would be closer to linear...

 

[MHB]

Go back in time far enough and there were at least 3 ways to measure bitterness, it has for the last 10-15 years been unified, most people call it IBU (international bitterness unit) it is generally regarded as being mg/L of iso-alpha acids / L of finished beer.
American literature often calls it a BU (bitterness Unit) (US comes with a built in reluctance acknowledge there is a rest of the world - some times the poms aren't far behind)
Some of the oldest methods involved a taste test which were very non linear as well as being fairly unreproducible (best guess method). The best of the modern methods uses HPLC, very accurate and repeatable.
Mark

 

[grandadrob]

yet further googling says they are the same - the more we know the more we don't know....