[iammrpayments]

I don’t know what the pipes are made of, but doesn’t look like something I’d like to heat and run my water through it before drinking it

[dougdude3339]

The tubing and pumps are food safe, however, the radiators and cooling block are not. It's a special tasting cup of coffee best consumed in moderation.

[ZiiS]

Usually PVC not dissimilar to your home plumbing; but yes at temperate it can leach.