Older juice has darkened. Still good to use?

[Carless]

I discovered ecigs at the end of last year, did my research before buying one and wound up with an Ego, thanks in large part to having found this awesome forum, too.
Unfortunately, I never ordered any cartomizers or drip tips and soon tired of messing around with the blue foam, fluval, etc. in the atty's.
I did discover Ms.T's Snickerdoodle cookies juice though and stayed off the analogs for over 30 days before going back to them.
Fast-forward to now:
I just got a Pro-Vari (black/blue) and have ordered another round of juices.
With the Vari, even fruity juices taste better when you can adjust the voltage, but so far, I still like the Snickerdoodle juice the best. My problem is that I still have 20ml or so of old snickerdoodle juice that has darkened to amber but tastes fine and a brand new, shiny 30ml bottle of fresh golden-colored liquid that just arrived.
In the interest of not being wasteful, Is it ok to vape the older stock first?
I just got a liquinator and am about to fill it with the amber if y'all tell me it's safe to do so.
Thanks in advance for enlightenment to come.

 

[iamtopher34]

Should be fine people are letting juice sit around for a year because they think the taste is better so enjoy it

 

[Carless]

Thank you! I even thought about refrigerating the new bottle while I used up the old, but your comment makes that sound unnecessary, too.
I can't wait to get this Liquinator tank on my Provari. Talk about being all set for the day, lol!

 

[swedishfish]

A lot of juice darkens with age. I have a bottle of snickerdood.le that's dark too. Maybe it's the vanilla?

Sorry for the weird spelling, I'm having problems with my keyboard.

 

[Tersur]

The Nicotine actually causes the darkening. When some juices are mixed they are completely clear and then hours later start to get the caramel color. Higher Nic content will Cause darker color quicker.

 

[swedishfish]

None of my clear juice .like my fruit or my mentho.l get dark at a.ll. They all stay clear, maybe a tad yellowish. I have a big bottle of VB Artic Ice that I got when I first started vaping that's crystal clear. I only add a coup.le drops of that to my fruit juices. I only do that because it's 30 mg. I have a coupl.e of bott.les of Halo mentho.l that got a tad darker.