Flax is very susceptible to air, light and warmth. It needs to be consumed fairly soon after pouring it from the bottle, especially if you've mixed/shaken/stirred it into a dressing. So, it's not a keeper for several days, unfortunately. It oxidizes rapidly ... oxidation of oil = rancid...

I make salad dressings to keep over a few days ... i use Extra virgin olive oil, and yes, it clouds up and solidifies somewhat ... that's a good sign that it has lots of monounsaturates in it ... ... I just take it out of the fridge 1/2 to 1 hr before I dinner .. or if it's just for me .. shake it up baby .. and pour it on the salad globs and all .. it quickly melts and coats the greens just fine.

I agree with Sharon, I like the flavours and herbs to blend and mingle for at least overnight, and better even after a couple days.

Doreen