When making CO2 cartridges, oil is used in the machining process. Food-grade cartridges are those that have been steamed cleaned on the inside after being built. cost of refilling a 5 pound Co2 tank ...

But there will be no "significant impact" on prices in supermarkets, the government says. Food grade CO2 is used for hundreds of products: Source: Food and Drink Federation/Global Counsel CF ...