after making Tren acetate in 5% BA /grape seed oil
I filter sterilized it then I split it into 2 vials which were previously used
one vial was OK the other became contaminated overnight.

i refiltered (.22u) it and it went from cloudy yellow to clear yellow?
The other good vial is typical, clear golden brown .

So did the freaking bacteria eat the Tren because it is not golden brown
anymore ? Is it worth using it after re-sterilizing if the color is off like this?

after making Tren acetate in 5% BA /grape seed oil I filter sterilized it then I split it into 2 vials which were previously used one vial was OK the other became contaminated overnight.

What makes you think that the vial became contaminated?

MRANAK? How long is Tren good for from the time converted?

thank you for your reply, I believe it was contaminated since it was golden brown clear then it became cloudy yellow overnight . The second vial from the same batch is still nice and golden brown. Next time I will put it under one of my microscopes to confirm the presence of bacteria.