Thermoelectric wine cooler drying and curing - DIY

Douggyfresh420

Well-Known Member
I just got my two dehu's ripped out and wired back together. Waiting on my coolers to get here. Ill have to drill a larger hole in the back, bit i have these 2" cord seal plugs i use for my Radon mitigation business. That make a real nice, tight seal so shouldnt have to use that much how glue. I'll use some double sided tape and velcro for hanging the humidity probe inside the cooler. Defiantly the less glue, the better1000001369.jpg
 

MR.Towellie

Member
I just got my two dehu's ripped out and wired back together. Waiting on my coolers to get here. Ill have to drill a larger hole in the back, bit i have these 2" cord seal plugs i use for my Radon mitigation business. That make a real nice, tight seal so shouldnt have to use that much how glue. I'll use some double sided tape and velcro for hanging the humidity probe inside the cooler. Defiantly the less glue, the betterView attachment 5428819
"I just got my two dehu's ripped out and wired back together"
you wire what cable with which cable together. i got confused with this part, because there are bunch of cables.
 

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by2

Active Member
"I just got my two dehu's ripped out and wired back together"
you wire what cable with which cable together. i got confused with this part, because there are bunch of cables.
On the dehumidifier part you have 2 red wires, 1 yellow and 1 black as far as I can see.
so if the color of the cables are correct you connect the red ones with each-other and the black and the yellow.
Then you take the power supply and connect it directly to the cables I just mentioned.
You plug it in and turn it on and check so the fan is blowing in the right direction and that the Peltier is cold on the correct side.
If not just switch the cables.
That's how I did it, not the same model as you but they all look the same.
Good luck
 

MR.Towellie

Member
When it happens you can open the fridge and see if the fins are frozen, it is very obvious, they are white covered in ice. Looking back in the thread you had issues with the dehumidifier blowing up and back rather than forward like everyone else’s. You might just try a different dehumidifier if you haven’t already. The location of the temp sensor work for everyone else, I’m not sure I would mess with it myself, it’s location should be fine. I also recall you putting a wet sponge in, you do not need one if you are using one, it’s counter productive unless you are in a very dry environment and you are already fully dry and just curing.
first of all I would like to thank everyone for the help, especially you hook daddy for starting this thread u r a legend.

"dehumidifier blowing up and back rather than forward like everyone else’s".

my dehumidifier blow air up and back rather than forward. do you think this will be a problem. would flipping the fan fix the problem or is it not a problem to worry about?
 

MR.Pool

Member
So I’m on first trial run. I’ve had some in my fridge for about a week and I’m settled at 60/60 and I get a hay smell if I open the fridge. Is that normal?
 

Hook Daddy

Well-Known Member
first of all I would like to thank everyone for the help, especially you hook daddy for starting this thread u r a legend.

"dehumidifier blowing up and back rather than forward like everyone else’s".

my dehumidifier blow air up and back rather than forward. do you think this will be a problem. would flipping the fan fix the problem or is it not a problem to worry about?
I don’t think it will be an issue. There was someone a while back that had the same thing, the dehumidifier blowing up rather than forward. You could just put a solid piece of cardboard or something under the shelf above it to redirect the air if it creates some unwanted airflow. As long as it’s dehumidifying properly it should work.

Edit: The last person that was having issues with fins freezing and had the dehumidifier blowing up was just trying to dry too fast if I recall. Slowing down solved the freezing issue.
 

Hook Daddy

Well-Known Member
So I’m on first trial run. I’ve had some in my fridge for about a week and I’m settled at 60/60 and I get a hay smell if I open the fridge. Is that normal?
Are there a lot of fan leaves in with it? Also were the buds harvested early by any chance? The cooler will not change the way buds smell so much as preserve the terps. How does a bud smell when you take it out and throw it in a grinder? If you have a pic of buds going in the cooler and now that might be helpful.
 

Douggyfresh420

Well-Known Member
"I just got my two dehu's ripped out and wired back together"
you wire what cable with which cable together. i got confused with this part, because there are bunch of cables.
I cant tell if your power cables are blue/ green or blue / white, but your blue wire will be your hot and the other is your neutral. The only wires you need to keep is black and red for fan and black and red for Peltier. These all get wired together with your power cables.
 

MR.Towellie

Member
thanks guys, I'm almost done. i drilled a small hole for the wires, but it might be too small, not sure how to seal such a tiny hole. any ideas?
as for the other hole below it, i drilled that by mistake but it didn't drill through the inside of the fridge only from the outside through the thin metal and insulation. what should i do about the other hole below? would you recommend i use insulation foam to fill it up (pic attached), or just ignore it since it didn't go through all the way to the other side of the fridge? two more thing, where did you find the best place to hang the humidity sensor? and what did you use to cut the bottom metal shelve to fit the dehumidifier?
 

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Hook Daddy

Well-Known Member
thanks guys, I'm almost done. i drilled a small hole for the wires, but it might be too small, not sure how to seal such a tiny hole. any ideas?
as for the other hole below it, i drilled that by mistake but it didn't drill through the inside of the fridge only from the outside through the thin metal and insulation. what should i do about the other hole below? would you recommend i use insulation foam to fill it up (pic attached), or just ignore it since it didn't go through all the way to the other side of the fridge? two more thing, where did you find the best place to hang the humidity sensor? and what did you use to cut the bottom metal shelve to fit the dehumidifier?
I used a piece of neoprene foam from a aero cloner to plug the hole in mine, but hot glue would work if you have that. The construction foam would work, but will probably go everywhere and I’m not sure if it smells while drying. Silicone works but has that ammonia smell so make sure you have a few days to air it out if you go with that. The hole that didn’t go through you can use about anything or just leave it. You could even just wrap electrical tape on itself until it friction fit.

For the humidity sensor I hot glued it about half way up just under a shelf so it doesn’t touch anything even when loaded up.

I used a reciprocating saw to cut the shelf, but an angle grinder would work better. Bolt cutters would work as well.
 

MR.Towellie

Member
I just got my two dehu's ripped out and wired back together. Waiting on my coolers to get here. Ill have to drill a larger hole in the back, bit i have these 2" cord seal plugs i use for my Radon mitigation business. That make a real nice, tight seal so shouldnt have to use that much how glue. I'll use some double sided tape and velcro for hanging the humidity probe inside the cooler. Defiantly the less glue, the betterView attachment 5428819
why do you need two of them? u ain't worries it will dry too fast or get hotter in there?
 

MR.Towellie

Member
Welp, since you know they are accurate, then I'd say you're in danger of overdrying your flower.

For any others that are having weird occurrences with their hygrometers, it is definitely a good idea to actually test them using a test instead of just assuming they are accurate because they read the same or similar to another hygrometer or 2 that you have. Remember that if one is off just 3 or 4 points, that can be the difference between perfectly dried/cured flower and moldy situations. It can also mean that you think you have a great dried product and then you pull it out and it crumbles into dust. I posted the link on the last page with an easy way to test them.
where did you post that link? can you post it again please.
 

LibreLoud

New Member
Just wanted to make a post giving a THANK YOU and a shoutout to @Hook Daddy for making this thread and maintaining it for so long!

I have my first harvest ever sitting in a Koolatron WC20 that I built and modified based on information from this thread.

For anyone reading this in the future, these trays (13 x 12 dehydrator trays) fit perfectly as a replacement for the racks in the WC20 (they're slightly loose but I actually prefer that for easy movement of the trays).

I started at 60F and 75% RH, I've been bringing it down 1-2% RH per day until I'm now at 60F/60% RH. I'm on day 10 since loading up the fridge, most of my stems are giving that clean snapping sound but the inside of the fridge still smells kinda like grass/hay/chlorophyll, I'm guessing this should get better over time or maybe when I start curing?

Also, just so I can confirm, is the point of slowly bringing down RH daily to force a slower dry? I know it's been discussed in this thread before but I didn't really see a definitive conclusion.


Here's some pics, thanks again for the amazing thread and helpful information!
 

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Hook Daddy

Well-Known Member
Just wanted to make a post giving a THANK YOU and a shoutout to @Hook Daddy for making this thread and maintaining it for so long!

I have my first harvest ever sitting in a Koolatron WC20 that I built and modified based on information from this thread.

For anyone reading this in the future, these trays (13 x 12 dehydrator trays) fit perfectly as a replacement for the racks in the WC20 (they're slightly loose but I actually prefer that for easy movement of the trays).

I started at 60F and 75% RH, I've been bringing it down 1-2% RH per day until I'm now at 60F/60% RH. I'm on day 10 since loading up the fridge, most of my stems are giving that clean snapping sound but the inside of the fridge still smells kinda like grass/hay/chlorophyll, I'm guessing this should get better over time or maybe when I start curing?

Also, just so I can confirm, is the point of slowly bringing down RH daily to force a slower dry? I know it's been discussed in this thread before but I didn't really see a definitive conclusion.


Here's some pics, thanks again for the amazing thread and helpful information!
In short, the reason to slowly drop rh is to keep the dry slow and steady, as well as it keeps the dehumidifier from working too hard and potentially freezing the fins. That only happens when the cooler is packed full with fresh bud. I would let it sit at 60/60 for a while if you can, the longer the better. Also removing the fan leaves will help get rid of the hay/grass smell, the leaves will almost always smell that way.
 
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MR.Towellie

Member
In short, the reason to slowly drop rh is to keep the dry slow and steady, as well as it keeps the dehumidifier from working too hard and potentially freezing the fins. That only happens when the cooler is packed full with fresh bud. I would let it sit at 60/60 for a while if you can, the longer the better. Also removing the fan leaves will help get rid of the hay/grass smell, the leaves will almost always smell that way.
do you unplug the dehumidifier when it reach 60% RH? or you program the Inkbird to kick in the dehumidifier at 61% RH?
 

Hook Daddy

Well-Known Member
do you unplug the dehumidifier when it reach 60% RH? or you program the Inkbird to kick in the dehumidifier at 61% RH?
I leave the dehumidifier running and at 58-60%. The buds will still have some moisture in them, here on the east coast I can leave them in for about 3 months before they fall lower than 58%, I don’t open the door to the cooler often though. If the cooler is in an environment that is below 58% rh and you open the door frequently that will change obviously, and once the cooler starts dropping below 57% or so I’d put a damp sponge in or bag/jar them up, but if the door is left closed and ambient rh is above 58% it shouldn’t be an issue.
 

MR.Pool

Member
I just chopped and loaded mine last night. I did try to cut off as much fan leaves as possible but some bugs were big so I left on stem, hopefully that doesn’t cause an issue. I started at 62 f and 75rh but it’s definitely bouncing around. Any suggestions appreciated. I see in a previous post I should do 60f
 

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