I probably wouldn't store premade longer than a couple of years. I'd dry it out thoroughly and seal it up to keep bugs out if you plan to go this route. I've never stored longer than 3 or 4 mos so I'm not sure if anaerobic baddies might go to town on it. Probably good to crack the lid and inspect it every few months.

Yeah, definitely resoak it if it seems pretty dry/light colored and you're about to use it . You might want to consider leaving out the peat in your pre-assembly and adding that last minute before planting time since that's the toughest component to rewet.

You can throw the lime in at pre-assembly time so it can work its magic and be all done by planting time down the road. Or you can wait, it's not a huge deal. HOWEVER, do NOT mix in CRF until planting time. With warmth and moisture, it will release out into the mix whether there is a plant in there or not, then when you go to plant later, you could burn up or overload your plant, making for a bad start.

This all said, I store the fines in their unopened bags then break them out when I need to mix. They seem to stay moist for a long long time if stored in a cool shaded spot.

I don't see any problem with storing your mix if you are going to use it this season.

I have made a barrelful of it and I am just using it gradually. When I mixed it on the tarp, I moistened it just a bit so that the lime and crf won't sink down.

I sift all my components and store them separately in small galv trash cans. That way I can mix them in any combination I feel is best for the plant and container that I'm potting up.

Jerry