I have never heard of adding dry amendments to soil and letting it sit for a month, or “cooking” the soil.
I am getting the feeling that we are talking two different things.
I use gaia green 444 and 284
You mention that you are using the Gaia Green 444 and 284 but in the first msg you mentioned that you were mixing "
...living soil with worm castings, perlite and organic dry amendments, and had some left over." and I figured that you were adding one or more of the usual amendments to some soil you already had. Now I am thinking that you are calling the Gaia Green fertilizers as "the amendments".
Usually when people are mixing up a soil and talking amendments they are referring to things like Kelp Meal, Neem Seed Meal, Bat and/or Seabird Guano, Insect Frass, Crustacean or Lobster Shell Meal and any of the others available. Then they will let the soil rest for a period of time while the existing soil micro-organisms "cook" the amendments so that they are ready for when the plants. The usual time for this is about a month though some people say they can get by with 2 weeks and some like to wait 2 months or more. During this "cooking" time the temperature of the soil can go up and it will feel warm for awhile.
If you are referring to the Gaia Green as the amendment then just follow the directions and mix in. Most of the ingredients are partly ready as water soluble and the plants will make use of them as soon as they are needed.
I have left unused soil from a transplant in a covered tote only to find mold growing quite quickly, so how do i store it ???
Do not cover the tote tightly. A loose fitting lid is better since it will allow some air exchange so that the micro-organisms can get oxygen. I keep my stored soil in large metal tubs and will keep it damp but not soaking wet.
There is a good chance, maybe 99% probability, that the mold you saw was the start of the mycorrhizae network setting up so it would be ready when plant roots send the signals of which nutrients it needs at any particular time. It is a good thing and I have listened to organic soil growers get excited when they notice it starting to show on their soil mixes.
And the various fungus that decompose specific organic material in the soil will contribute to the mycorrhizae network. I am thinking of the ones that work with the wood chips that are often part of compost based soil mixes. If these are visible they can show as red or yellow fungus growing in small patches on top of the soil or even at any drain holes along the bottom of the side of the pots. I just let them be. After a couple of weeks or so they have done their job and die back anyway.
So, cooking the soil you say
Yep. Do a google search using the key words:
cooking soil
or do a search of this message board using the exact key words below. If you use cooking soil you will get a list of thousands of msg that contain either the word "cooking" or "soil" but the same two words but with the + signs will narrow the search down to msgs that discuss "cooking soil".
cooking +soil+
The top two currently active threads that have had the occasional message discussing cooking soil mixes are:
The Gee Spot - You Finally Found It started by
@Gee64 .
Keffka's Recycling, KOS Blue Thai,... started by
@Keffka .
Or "root" through the listing of main forums on this message board looking for the one called "The Grow Room" and then the sub-forum called "Organic Gardening" and the the next sub-forum "Organic Soil". A lot of interesting threads on amendments and organic or living soils.
Ah, here it is....
https://www.420magazine.com/community/forums/organic-soil.338/