Safe plastics to use in vegetable hydroponics system?

Asked April 4, 2013, 1:59 PM EDT

I've read some conflicting articles on the use of different plastics in hydroponic gardening in particular the use of PVC pipe and fittings and #2 HDPE plastic tubs. I'm wondering which plastics are food safe for a hydroponic garden?

Fairfield County Connecticut

1 Response

I was assigned your question and unfortunately we do not have any hydroponics specialists at UConn. There are a number of hydroponics companies in CT like,, and that sell supplies and equipment. I would consult them as well as some hydroponics reference books to see what they suggest for food safe plastics. I would also check out the UMass website which has some hydroponics resources listed. I believe Cornell also has information on hydroponics. Hope this helps.