Continental Trix-Multi FG Hose issues.

[kererubrewing]

I've got some new 1" Trix-Multi Food hose that is bumming me out. We've washed it with cool water (which turned yellow), run caustic through it - which also turned yellow, and then today have run hot water through it and it's also turning yellow. WTF? This is supposedly food grade NBR hose and this is not looking good at all. Anyone else have this experience?

Here's the product spec sheet: TRIX-MULTI-FOOD_HOSE.pdf