Quantcast

Ebu To Ibu Conversion?

Aussie Home Brewer

Help Support Aussie Home Brewer:

Enerjex

Well-Known Member
Joined
28/5/07
Messages
297
Reaction score
1
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

Well-Known Member
Joined
1/10/05
Messages
5,992
Reaction score
3,434
Location
Newcastle
1:1
they are the same thing

MHB
 

thomniville

New Member
Joined
11/3/20
Messages
1
Reaction score
0
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

Member
Joined
26/9/20
Messages
5
Reaction score
2
Location
london
so 20 ebu = 19.8 ibu
50 ebu=40.7 ibu
100 ebu = 49.6 ibu

surely it would be closer to linear...
 
  • Like
Reactions: MHB

MHB

Well-Known Member
Joined
1/10/05
Messages
5,992
Reaction score
3,434
Location
Newcastle
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

Member
Joined
26/9/20
Messages
5
Reaction score
2
Location
london
yet further googling says they are the same - the more we know the more we don't know....
 
Top