Draught beer

Retail display cold and freezer cabinets and counters. Cooling trays for bottles (beer, soft drinks, wines). Instantaneous draught beer coolers. These usually comprise a tank of constantly chilled water, through which the beverage flows in stainless steel piping. 

For regular consumers of alcoholic beverages, wine and beer may make a significant contribution to dietary lead intake and this is reflected in the higher blood lead levels found for drinkers. Lead in beer is also absorbed more readily from the gastrointestinal tract than lead from the rest of the diet. A survey of lead in wines and beers from lead-capped bottles in 1982/1983 showed that about 90% of canned and bottled beers sampled contained < 10 /v,g/l and that nearly half the draught beers sampled contained > 10 /v,g/l 4% contained > 100 /v,g/l. All wines sampled directly from the bottle contained < 250 /ig/1.12... 

The speed at which wild yeasts can grow in beer should not be underestimated. S, cerevisiae var. turbidans in commercial beer may give rise to turbidity of draught beers when the ratios of the wild yeast cells to culture yeast cells in the pitching yeast are as low as one in 1 6 x 10 [91]. 

British Fined Draught Beer [4] British Ale and Lager Pilsner Urquell [5] Germany Premium [6] Bavarian Bright [7] American Lager [7] us Lager [81 Australian Bottled [9]... 

One of the properties of beer appreciated by many consumers is the head of foam that develops as the glass is filled. It is generally reckoned desirable that this head should persist and not collapse while the beer is being drunk. Most bottled beers produce a good head but the foaming characteristics of draught beers show local variation. Those from Burton-on-Trent traditionally have no foam, but in the North-east a rich creamy foam that overflows the glass is expected. Brewers therefore wish to maintain or improve the foam... 

The top 10 countries cut by draught volume are detailed in Table 16.1 The proportion of the mix as draught beer varies widely, with the major players being Ireland... 

Cost and quality are indeUbly Unked. In the case of draught beer, poor or so-so quality coupled with high purchase price are two of many drivers for consumers to switch from the on-trade to drinking beer in small pack at home. Regrettably, quality issues are all too common with draught beer, which, in the consumer s eyes, reflects badly... 

Table 16.3 Draught beer dispense—simple versus complex...

Table 16 Yeast genera identified in draught beer 1950-2012...

Table 16.5 Bacterial genera identified in draught beer 1965-2013...

There is little debate that line cleaning is the key parameter in the assurance of draught beer quality. Whilst the tap and the keg coupler are clearly contributors to dispense system hygiene, they receive comparatively little attention, and what there is (i.e. spout cleaning), can exacerbate the problem. 

USA 14 days 3 Brewers Association -Draught beer quality manual (2011)... 

Australia 7 days 0-10 -0.5-3 Draught beer dispense systems installation guidelines (2009)... 

In the USA, a very different approach is recommended to assure the hygiene of the tap. Here the Brewers Association (2011) takes a very different stance and, as best practice recommended, as part of the 14-day cleaning cycle all faucets should be completely disassembled and cleaned . Intuitively this will add (hygienic) value and should be a best practice aspiration in all markets for draught beer. 

Remedial action is straightforward and as recommended by the Brewers Association (2011) draught beer quaUty manual such that every 14days all FOB-stop devices should be cleaned in line, and cleaning solution vented out of the top and every three months all FOB-stop devices should be completely disassanbled and hand-cleaned . 

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