I'm thinking about building a setup to make my own carbonated water. Should I be concerned that I'll be filling up my CO2 tank at Dick's Sporting Goods?
Is there such a thing as “food grade CO2”
carbonationfood-safety
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Best Answer
According to The Brewing Network, industrial and food grade CO2 generally come from the same plants:
However, the nature of those impurities extremely important. They go on to suggest:
They suggest you ask for a profile of the impurities, although I suspect that Dick's will be unable to comply. You will have to assess your own tolerance for risk, but you may better off seeking a more appropriate local vendor.