Food & drink
Accurate dosing with single shot dispensing A Belgian brewery required a pump which could accurately dose liquid sugar into beer, in order to fulﬁl an ongoing order. A close-coupled peristaltic pump was chosen which features accurate single shot dispensing. The peristaltic technology eliminates the risk of contamination by ensuring nothing but the tube touches the ﬂuid.
ituated some 80 km southwest of Brussels, just 2 km from the French border is Brasserie de Blaugies. Termed a ‘microbrewery’, the company is run entirely by members of the Carlier family. Today the brewery produces approximately 5,600 l of beer per month. A new 520 Series closecoupled peristaltic pump from WatsonMarlow Pumps Group has been installed at the brewery where it is helping to dose very speciﬁc quantities of sugar into premium beer. The new project was reliant on accurate, contamination-free dosing.
Installed in September 2009, the 520 Series pump accurately doses the sugar quantities into the vessels after the other beer ingredients have been pumped in at a temperature of 2°C. After a certain period of fermentation, the beer is decanted into smaller bottles ready for sale. In an added beneﬁt to the Brasserie de Blaugies, peristaltic technology ensures nothing but the tube touches the ﬂuid, thus eliminating the risk of the pump contaminating the ﬂuid or the ﬂuid contaminating
the pump. The complete closure of the tube, which is squeezed between a roller and the track, gives the pump its positive displacement action, preventing backﬂow and eliminating the need for check valves when the pump is not running. The 520 Series pump at Brasserie de Blaugies is used in combination with Marprene tubing, Watson-Marlow's thermoplastic elastomer. A second bottling line is planned for next year, which will also feature Watson-Marlow pump technology. www.watson-marlow.co.uk
When Brasserie de Blaugies won a signiﬁcant ongoing order to ﬁll 20 and 30 l plastic fermentation vessels with one of its beers, the challenge was to dose the precise amount of liquid sugar to ensure the beer is brewed to oﬀer the required levels of alcohol and ﬂavour. For each vessel, a precise measurement of liquid sugar is required. Too much or too little sugar can be disastrous for the ﬁnal product, so the importance of the dose is not to be underestimated. A friend of the Carlier family, Andres Urban, works for peristaltic pump manufacturer, Watson-Marlow Pumps Group. Following a site visit and initial dialogue, Andres was able to recommend the 520 Series closecoupled peristaltic pump, which features MemoDose for accurate single shot dispensing. The pump is rated for 24 hour duties, although at Brasserie de Blaugies, the pump typically works for one week and is idle the following week while other operations aside from ﬁlling are undertaken. www.worldpumps.com
The Brasserie de Blaugies microbrewery has installed a 520 Series close-coupled peristaltic pump from Watson-Marlow.