EcoPro best by date

[Radost]

I have unopened eco natural fixer and developer that I purchased in 2020. there are no dates on them. Is it safe to assume that they last a very long time if unopened?

 

[Rick A]

I can't speak to the developer, but the fixer definitely lasts a very long time even after opening.

 

[otto.f]

if unopened

2020 is not so much. Manufacturers give expiration dates to be sure, but most of the chemicals are quite long ok, if not diluted to working solution; then we get rather months than years.

 

[Radost]

2020 is not so much. Manufacturers give expiration dates to be sure, but most of the chemicals are quite long ok, if not diluted to working solution; then we get rather months than years.

Thanks. It is strange there is no date on both

 

[otto.f]

Thanks. It is strange there is no date on both

Which brands?

 

[spijker]

I use the Eco Pro paper developer that comes in brown PET bottles of 1/4 US Gallon. These bottles are well sealed and my experience is that they keep well, unopened and opened. Fixer usually keeps longer than developer so I'd think that yours should still be fine. Give the developer a try and see if it still gives deep black.