Cure room design

[dizzyground]

I've never really put effort into curing, and that is going to change now.

Help me plan how to create a cure tent. I have a room with flowering tent 4x8, and gonna setup 4x4 cure tent next to it. Several strains, so wont be chopping all at once. It is winter here so air is dry. During day, when lights on at flower tent, inside RH is 40-60%, but at night it can drop to 10%.

I would like to have negative pressure in cure tent. Do you think this is possible with just a passive tube to flower tent? I have extra fan too that can be used. I have this old time humidifier which heats up water. Can this be used in cure tent, or what kind of humidifier is best for this purpose?
So far my plan is:
Little neg pressure for smells if humidifier can support that
ink bird humidity controller controlling humidifier

Planning to dry trim

4x4 tent is old and had some mold in plants back in the day. Im going to clean it with hydrogen peroxide

Thanks for any help!

 

[porkbud]

I would like to have negative pressure in cure tent. Do you think this is possible with just a passive tube to flower tent? I have extra fan too that can be used. I have this old time humidifier which heats up water. Can this be used in cure tent, or what kind of humidifier is best for this purpose?

Probably a no on passive tube. Set up a fan exclusively for the cure tent.

I would expect and suggest that you won't need a humidifier. You need to focus on the amount of exhaust and intake. Don't exhaust too much, slow drying/curing at the lowest fan speed is what you want to achieve.

Close up and filter your intakes properly, set the fan on low, hang your plants in the dark in there, and let it go.

Sanitize the heck out of it!, I would use bleach if it were me I've had mixed results with peroxide but it definitely works too. Spray all the vents and everything.

Little neg pressure for smells if humidifier can support that
ink bird humidity controller controlling humidifier

A carbon filter is a great investment if smells are a problem. This could be the smelliest part of the whole grow! Negative pressure won't do much to control the smell alone! Again you probably won't need or want the humidifier in the cure tent.

 

[porkbud]

Planning to dry trim

This I'm hesitant to advise on just because i don't save a lot of trim. When i do I use paper bags full of trim and hang them from wires in my dry/cure tent. It seems to work for me but there's probably better ways!

 

[Herb & Suds]

Probably a no on passive tube. Set up a fan exclusively for the cure tent.

I would expect and suggest that you won't need a humidifier. You need to focus on the amount of exhaust and intake. Don't exhaust too much, slow drying/curing at the lowest fan speed is what you want to achieve.

Close up and filter your intakes properly, set the fan on low, hang your plants in the dark in there, and let it go.

Sanitize the heck out of it!, I would use bleach if it were me I've had mixed results with peroxide but it definitely works too. Spray all the vents and everything.



A carbon filter is a great investment if smells are a problem. This could be the smelliest part of the whole grow! Negative pressure won't do much to control the smell alone! Again you probably won't need or want the humidifier in the cure tent.

Welcome to RIU !

 

[Gemtree]

I put an ultrasonic humidifier in the tent with a inkbird set to 60% then have a box fan blowing and the door mostly closed. It's still getting air exchange but constantly lowers the humidity so the humidifier constantly switches on and off. Keeps it at a high of 62 and low of 58. For temp I just keep the room cold or plastic off part of the room if I need the rest of the room warmer

 

[dizzyground]

Probably a no on passive tube. Set up a fan exclusively for the cure tent.

I would expect and suggest that you won't need a humidifier. You need to focus on the amount of exhaust and intake. Don't exhaust too much, slow drying/curing at the lowest fan speed is what you want to achieve.

Close up and filter your intakes properly, set the fan on low, hang your plants in the dark in there, and let it go.

Sanitize the heck out of it!, I would use bleach if it were me I've had mixed results with peroxide but it definitely works too. Spray all the vents and everything.



A carbon filter is a great investment if smells are a problem. This could be the smelliest part of the whole grow! Negative pressure won't do much to control the smell alone! Again you probably won't need or want the humidifier in the cure tent.

Thanks for tips. I will definately look what is best cleanin product, bleach on the list now.
I have carbon filter in flower tent. Maybe I can push the smelly air there. You think a small fan on minimal setting can be kept on 247? That would be perfect. I have 125mm ~360m3h fan with controller so it can be run very slow. And noisy

 

[dizzyground]

This I'm hesitant to advise on just because i don't save a lot of trim. When i do I use paper bags full of trim and hang them from wires in my dry/cure tent. It seems to work for me but there's probably better ways!

I used to do this too, but I've read that drying plants as a whole slows the drying down, and that sounds like a good thing to me

 

[VAhomegrown]

Are you planning on regulating the temperature inside the drying tent? I imagine that the temp in the room that your flower tent is in is kept around 75*+/-. Ideally you'd want your drying tent temps to be stable around 60-65 if you are going for a slower dry.

I use a spare bathroom upstairs for now. Set the temp up there to 60* since the upstairs is virtually unused. Dehum and a fan, use the exhaust fan above the bathtub to exhaust. I let the whole plant dry for about a week, then I cut the branches and hang them on a cylinder of chicken wire fence I made that hangs off the shower curtain rod. I cut the branches down so they still have part of the stem on it, and it makes a "hook" that you can hang on the chicken wire squares.

 

[dizzyground]

Are you planning on regulating the temperature inside the drying tent? I imagine that the temp in the room that your flower tent is in is kept around 75*+/-. Ideally you'd want your drying tent temps to be stable around 60-65 if you are going for a slower dry.

I use a spare bathroom upstairs for now. Set the temp up there to 60* since the upstairs is virtually unused. Dehum and a fan, use the exhaust fan above the bathtub to exhaust. I let the whole plant dry for about a week, then I cut the branches and hang them on a cylinder of chicken wire fence I made that hangs off the shower curtain rod. I cut the branches down so they still have part of the stem on it, and it makes a "hook" that you can hang on the chicken wire squares.

View attachment 5057400
View attachment 5057401

I don't think I will regulate temp. The room has 21c (70f) at floor level, and I will put the tent next to a door that is leaking abit cold air in. So maybe I will get cure tent to ~20c. Cure tent intakes at floor level to get the coldest air in

 

[porkbud]

Thanks for tips. I will definately look what is best cleanin product, bleach on the list now.
I have carbon filter in flower tent. Maybe I can push the smelly air there. You think a small fan on minimal setting can be kept on 247? That would be perfect. I have 125mm ~360m3h fan with controller so it can be run very slow. And noisy

As long as it goes low enough shouldn't be an issue 24/7. I would recommend not having the tents connected, I'm paranoid about mold. It would work if you keep things clean, and can keep some negative pressure on the cure tent without pulling too much extra air out with the flowering tents exhaust.

If the fan is too powerful, you could use the humidity controller and set it to turn on the fan at 65-70% rh, it's not perfect but if there's quite a few hanging plants I usually find it will rise above that regularly as humidity comes out of the plants. However that is based on my specific environment which is very dry. Often 25% rh. It may not work at all if you're in a moist area

 

[porkbud]

Are you planning on regulating the temperature inside the drying tent? I imagine that the temp in the room that your flower tent is in is kept around 75*+/-. Ideally you'd want your drying tent temps to be stable around 60-65 if you are going for a slower dry.

I use a spare bathroom upstairs for now. Set the temp up there to 60* since the upstairs is virtually unused. Dehum and a fan, use the exhaust fan above the bathtub to exhaust. I let the whole plant dry for about a week, then I cut the branches and hang them on a cylinder of chicken wire fence I made that hangs off the shower curtain rod. I cut the branches down so they still have part of the stem on it, and it makes a "hook" that you can hang on the chicken wire squares.

View attachment 5057400
View attachment 5057401

I love this I do this with herbs outdoors, pretty funny to see the plant cage inside, works great though.

 

[dizzyground]

As long as it goes low enough shouldn't be an issue 24/7. I would recommend not having the tents connected, I'm paranoid about mold. It would work if you keep things clean, and can keep some negative pressure on the cure tent without pulling too much extra air out with the flowering tents exhaust.

If the fan is too powerful, you could use the humidity controller and set it to turn on the fan at 65-70% rh, it's not perfect but if there's quite a few hanging plants I usually find it will rise above that regularly as humidity comes out of the plants. However that is based on my specific environment which is very dry. Often 25% rh. It may not work at all if you're in a moist area

Thanks for tips. I think the fan goes very low as its 0-100% adjustable knob. You mean the risk is if buds in cure tent get mold and that spreads to flower tent? I never developed mold during curing i think, but I used to dry alot faster and wet trim in the past. Only molds were in mega colas close to lamp.

keep some negative pressure on the cure tent without pulling too much extra air out with the flowering tents exhaust.

Am not sure what you mean with this. Flower tent exhaust goes to rest of house, and atm the flowering tent is humidifying the whole house pretty well outside air is dry, but daytime indoors ~50%rh and night it drops to 10-35%. Also temps drop at night below 20c so it will fluctuate a bit every day.
I am going to ocd clean the old tent that im going to cure inside. Flower tent has fresh carbon filter so I would like to filter the air thru that. Would like to hear more opinions on linkin the tents.

I actually have 2 extra small fans, could even put one on very low for negative pressure, and link other to the inkbird humidity controller, and set them all ine one tube. I think I have old carbon filter for that size too if linking tents is absolutely bad.

 

[porkbud]

Thanks for tips. I think the fan goes very low as its 0-100% adjustable knob. You mean the risk is if buds in cure tent get mold and that spreads to flower tent? I never developed mold during curing i think, but I used to dry alot faster and wet trim in the past. Only molds were in mega colas close to lamp.

Am not sure what you mean with this. Flower tent exhaust goes to rest of house, and atm the flowering tent is humidifying the whole house pretty well outside air is dry, but daytime indoors ~50%rh and night it drops to 10-35%. Also temps drop at night below 20c so it will fluctuate a bit every day.
I am going to ocd clean the old tent that im going to cure inside. Flower tent has fresh carbon filter so I would like to filter the air thru that. Would like to hear more opinions on linkin the tents.

I actually have 2 extra small fans, could even put one on very low for negative pressure, and link other to the inkbird humidity controller, and set them all ine one tube. I think I have old carbon filter for that size too if linking tents is absolutely bad.

Or flower to cure, spores get around. Again I'm paranoid, I try to keep all things separate. You'll be totally fine just keeping things clean.

The exhaust on the flower tent, if directly connected to the cure tent, would add to the amount of air being pulled out of the cure tent. The cure tent space would become another part of the flower tent essentially as far as air is concerned. Even if the cure tent fan wasn't on, the air would be pulled out by the flower exhaust.

That would be the only real concern linking them. Drying them too quickly thanks to the exhaust fan. I'm probably imagining more exhaust power then there really is though. With a small tube connection the flower fan might not affect that much, only so much air can go through a tube right? You might even not need the exhaust fan on the cure tent, just the tube between them, if the flower exhaust is always on or too powerful like I said above.

 

[dizzyground]

Or flower to cure, spores get around. Again I'm paranoid, I try to keep all things separate. You'll be totally fine just keeping things clean.

The exhaust on the flower tent, if directly connected to the cure tent, would add to the amount of air being pulled out of the cure tent. The cure tent space would become another part of the flower tent essentially as far as air is concerned. Even if the cure tent fan wasn't on, the air would be pulled out by the flower exhaust.

That would be the only real concern linking them. Drying them too quickly thanks to the exhaust fan. I'm probably imagining more exhaust power then there really is though. With a small tube connection the flower fan might not affect that much, only so much air can go through a tube right? You might even not need the exhaust fan on the cure tent, just the tube between them, if the flower exhaust is always on or too powerful like I said above.

Hehe you are getting my point. Flower tent has quite many openings, I think I will need to close some of them to even get some kind of pull through a passive pipe. We will see Both tents are going to be in the same room, and in case of spores... I think it doesnt matter if they are linked or not. I will try to clean things up very well and keep dead leaves off from tables. Atleast plants are from seeds so they should be powdery mildew free! Sadly I can't set up drying tent anywhere else.

Exhaust on flower tent isnt crazy powerful, about 50% speed of 1200m3h (700cfm). Optimally I just want little bit of negative pressure to cure tent so smells stay there.