You will find choices obtainable on lesser glycol chillers, with interior drinking water tank, for simplicity of use. Drinking water can be used to chill down to seven°C but then glycol must be added to chill further. We use propylene glycol, a non-toxic substitute to ethylene glycol, making sure compliance https://myeasybookmarks.com/story5781827/glycol-chiller-uk-an-overview