Beer and Soda

Maximise safety with CO2-measurement

In breweries CO2 is added to soda and mineral water to get carbonic acid, H2CO3. It is done to make the soda feel fresher when we´re drinking it. Another good effect of carbonation is that it reduces the risk of bacteria in the drink. Carbon dioxide doesn´t affect the taste or smell of the drink and therefore CO2 is also used as propellant gas for beer and soda at for example restaurants and bars. Today the CO2 that is formed in the fermentation process in breweries is used to produce carbonated soft drinks. [1]



Why measure CO2 at restaurants?
In 2011 a lady died at a restaurant in the USA. Also nine persons had to go to hospital after they had visited the toilet at the same restaurant. All this happened due to a leakage of carbon dioxide. CO2 is a heavy gas and the toilets were at a low point in the building, therefore these rooms were filled with gas. CO2 is hard to detect with your senses and for that reason it´s important to  always measure the gas where it´s a risk of high concentrations.

How does it work?
The recommended indoor CO2 concentration is about 800 - 1 000 ppm. A somewhat higher concentration  can for example cause headache and when it´s in levels up to 80 000 ppm it causes convulsions, immediate paralysis and in worst case death.

By continual measurement of the air and a quick alarm at breweries, pubs and restaurants there is no big danger. It does not have to be expensive to buy an alarm like this to make the personnel  feel safe and not have to worry about possible leakages.

Reduced costs
Thanks to the measuring, society gets fewer carbon dioxide poisoned people at hospitals. This helps the government save money. A big accident can be very costly for a company. The restaurant, in the example, had to close down whilst the police made a full investigation into the cause of the catastrophe. This is of course expensive both in time, money and reputation. The government has to pay to investigate if the accident was a crime or not. This is all very costly and totally unnecessary.

- Personal safety
- Money saving


[1] Handbok för CO2 detektering. Behovsstyrd ventilation och industriella applikationer, CALECTRO AB, 2013-01-08