My thoughts are, always use glass bottles for everything touching your juice. I purchase from wizard labs and they send flavor in glass bottles. I steep in glass bottles and then store juice in glass bottles. Still vaping some mixes from eight months ago.
Others may not agree or purchase smaller quantities. But how long did that plastic bottle of flavoring sit on a shelf before you got it?
Price from WL is close and sometimes better than other vendors.
@Grubby, try some thing for me. squeeze the spout top bottle, will it allow air to leak our when it is closed? if so then yes the bottle is the problem IMHO. if the bottle doesn’t seal then it is allowing evaporation.
@GPC2012 As the bottle is full I decided to open it, squeeze it gently until the air was out then close it back up to see if air would go back in and indeed it does.
I also noticed the small bit of plastic in the centre of the nozzle is very flexible and when pushed very gently to one side it opens a hole.
I am no longer using these bottles to steep in and to be honest I should have known that these would be no good, I am now using secure lock plastic bottles to steep in.
I also have a question over on ECF if anyone can take a look it would be much appreciated:
I sometimes use these bottles and also steep in them. What I’ve been doing for steeping is to take the top off and put a small piece of plastic wrap (Saran wrap) over the opening then screw the cap back on… it seals the threads and top somewhat. It may just be in my mind but I think it helps. You can get other caps for them but haven’t tried that.
I drop things too often so I’m not crazy about glass bottles. I like 100 ml bottles tthen when I mix all my percentages become ML. guess I’m lazy it’s just so easy to measure 100 ml of water pour it in the bottles to check for accuracy and then when I mix I measure my flavors into the bottle mesure my base liquid pour into bottle shake it a couple times when I have it like 1/3 and 2/3 full then again when full. Off to the UC and then to the steep cabinet.