The original statement from the then BRLA included this line: "a head of froth is excessive and unreasonable if the measure of draught beer does not contain a minimum of 95% liquid
after the collapse of the head".
The courts have upheld the legal position concerning the quantity of beer served and case law has established
that in relation to certain beers the head of froth is an integral part of what is purported to be sold provided it is not excessive or unreasonable in the light of what the customer was taken to be ordering. A pint served in a brim measure may consist of liquid and a reasonable head.The British Beer & Pub Association abbreviated guidelines actually say:
- A measure of beer served with a head must include a minimum of 95% liquid.
- The beer should not be made available to the customer until bar staff are satisfied with the measure.
- Requests from customers for top-ups should be received with good grace and never refused, subject to avoiding spillage of liquid.
This all goes back to 1995 and the (still valid) full guidance document can be downloaded on this page...
http://www.beerandpub.com/industryArticle.aspx?articleId=76Anyway, a pint that's going to be 95% liquid once the head has collapsed is going to be acceptably full to me but does anyone think that, realistically, it's ever going to happen? To me, they key part of the guidelines is this line:
The beer should not be made available to the customer until bar staff are satisfied with the measure, which effectively means the pint shouldn't be handed over until the 95% liquid is achieved.