physics guys - passive cooling

[waveguide]

trying to save my genetics..

i understand seed longevity is humidity prioritised over temperature.

i store my seeds, unfortufuckingly, in a common refrigerator. full of dessicant and rice. inside 3 or 4 ziploks.

but almost every time i open them, in arizona, there's moisture inside. so much i can't see because the plastic is misted up.

there's either something wrong with the fridge, the ziploks, or the people who have access to it.

so i need to keep my fucking seeds somewhere else.

i live in the sonoran desert. it's been, at night, mid 80s around here.

i've thought about burying them. but leaving anything organic in the desert is asking for trouble.

i am really shit arse broke atm, maybe in a month i'll have some income. i've looked at the various means of refrigeration, eg. those plate thingys, but they are unreliable and power is gonig to be an issue.

talk to be about passive cooling - eg. sheets of glass are cooler to the touch, but don't always read cooler with a thermometer. i don't want to do evaporation because of moisture. i've read about phase change material but i'm broke.


please help me create some sort of small hutch i can keep my shit in! eg. wood with glass or metal on the outside? might dissipate heat. a glass jar inside another glass jar with large grain sand? hopefully someone is more experienced in conductivity than i...

i've only got a small micro to grow in, so i need to keep everythnig for say 4 years in order to preserve what i've got, so i'm looking for viability for ~4 years, with an ambient in the mid 80s for ~3 months out of the year.

trade places with me?

 

[waveguide]

don't you hate when half a dozen things go wrong and you're trying to fix them and then a spider is crawling all over you? it's like trying to tell you something...

"it's not safe here.." it's not safe anywhere fucker get off my shit.

 

[Betterhaff]

The plastic in baggies is still a bit permeable. I put my baggies of seed or pollen in mason jars with desiccant. Store the pollen in the freezer, seeds in the fridge.

If you take the jars out and they get condensation while you’re sorting just put the contents in a fresh jar.

Can’t help you with the passive, I try and keep things simple.

 

[stoned-trout]

use a mason jar..yeehaw.. I use em with rice or dessicant and put seeds in small baggies and tiny vials inside..i have buried my seeds many times but I also cover with plastic or inside a small round type insulated thermous..dig deep if in desert..yeehaw..

 

[waveguide]

The plastic in baggies is still a bit permeable.

ty, reresearching the topic (used to be a pro general nursery seed prop guy decades ago, amateur since..) returned the same.

so anyone possibly considering it knows how permeable, they were aired six days ago, confirm four layers of ziplok (two 'freezer' rated) with rice inside two and maybe a dozen dessicant packets in the innermost... and of course, having seen this happen before, bags and seals were checked.

 

[HempKat]

trying to save my genetics..

i understand seed longevity is humidity prioritised over temperature.

i store my seeds, unfortufuckingly, in a common refrigerator. full of dessicant and rice. inside 3 or 4 ziploks.

but almost every time i open them, in arizona, there's moisture inside. so much i can't see because the plastic is misted up.

there's either something wrong with the fridge, the ziploks, or the people who have access to it.

so i need to keep my fucking seeds somewhere else.

i live in the sonoran desert. it's been, at night, mid 80s around here.

i've thought about burying them. but leaving anything organic in the desert is asking for trouble.

i am really shit arse broke atm, maybe in a month i'll have some income. i've looked at the various means of refrigeration, eg. those plate thingys, but they are unreliable and power is gonig to be an issue.

talk to be about passive cooling - eg. sheets of glass are cooler to the touch, but don't always read cooler with a thermometer. i don't want to do evaporation because of moisture. i've read about phase change material but i'm broke.


please help me create some sort of small hutch i can keep my shit in! eg. wood with glass or metal on the outside? might dissipate heat. a glass jar inside another glass jar with large grain sand? hopefully someone is more experienced in conductivity than i...

i've only got a small micro to grow in, so i need to keep everythnig for say 4 years in order to preserve what i've got, so i'm looking for viability for ~4 years, with an ambient in the mid 80s for ~3 months out of the year.

trade places with me?

Well the concept is generally instead of trying to cool something directly you try to cool it by drawing the heat from it over a large surface area with or without a fan blowing across it.

Below is an example of a CPU passive cooler without a fan.

I would think though it can't keep something any cooler then just above room temperature since it's more extracting the heat rather then cooling the source.

 

[stoned-trout]

your thinking too much..yeehaw

 

[yesum]

Put them in baggies or vials would be better, and then put that in a good sealing glass jar. Rice in with it all. I put my seeds in tiny baggies and put those in a small container that is air tight, fill the container with rice to the top. Then put that into a glass jar and refrigerate.

If no refrigerator then bury a foot deep in shade.

 

[Tonygreen]

vacuum sealer

i think the "seeds need oxygen" bullshit is bullshit, lol. People have sent seeds to space and germed then fine on earth.

I could be wrong though lol

 

[MJPassion]

If your opening your bags indoors, with ac running, there's a good chance the humidity could be coming from that source. Especially if using a swamp cooler.

Far as storage goes:
Get yourself a good sealing ammo can, line it with foam insulation or mylar bubble insulation on all 6 sides, insert your seed, bury at least a couple feet deep, deeper is even better.

If ya can't bury it, refregerate it.
Freeze only if you can keep them frozen until use.