Live Stoner Chat Live Stoner Chat - Jan-Mar '25

[Olderfart]

From the way I understood it temp and dew point = RH and the pictures I've seen of the controllers on the units the display reads temp and dew point.

I'm sure your unit will work great not trying to knock it you do nice work. I just thought it should be mentioned since its a big part of what makes Cannatrol

I stand corrected, and tried to rep you for the great information, but gotta spread the love. I did not have a detailed enough photo of the display to see that the 53 was dewpoint in degrees rather than RH in %. I have edited my blog to reflect that, adjusting target RH to 57% which is what the Cannatrol settings achieve.

From the Cannatrol website:

"...controls temperature and vapor pressure/dew point, thereby controlling relative humidity."

You literally cannot control one without controlling the other. Controlling temperature and RH is exactly equivalent to controlling dewpoint.

The end target of the process is to get the bud to less than 0.6 water activity, which is by definition achieved by bud coming to equilibrium in a constant RH of 60%. Less marketing would have linked the description of the process to the actual objective, but hey, the company can describe their process whatever way is honest, even if the choice of terms may exaggerate the distinction a bit.

 

[Fermented_Fruitz]

Yes it does but don't believe it has built in humidifier hence the need for the damp sponge. The pictures that frank posted of his an what's on their website show big read outs for temp and dew point with rh small below it

View attachment 1726825

Why Relative Humidity (RH%) is NOT a Good Measure
Relative Humidity (RH%) is probably one of the most misunderstood terms we use when referring to drying and curing. RH% is made up of 2 absolute numbers: Dry Bulb and Dew Point Temperatures. This means that you can have the same RH% at 50° degrees and 80° degrees.

Think about that for a minute… by using temperature and dew point we control the Vapor Pressure… and have 100% control of the process.

I meant dehumidifier

 

[Fermented_Fruitz]

I edited my post

 

[Rick Dirte']

If I was in Frank’s position, single and lived alone I’d definitely buy a cannatrol. I glanced at them and would possibly need two for bigger harvests. My wife would have a fit if I spent that much on weed stuff. Lol
Plus my garage is stuffed with her and my shit. I hang them 1 day, cut off branches and buds put in paper sacks for 5 or 6 days. To jars with 62% Boveda bags, burp every day for 2 weeks. 30% humidity in the garage now.

 

[Olderfart]

Yes it does but don't believe it has built in humidifier hence the need for the damp sponge. The pictures that frank posted of his an what's on their website show big read outs for temp and dew point with rh small below it

View attachment 1726825

Why Relative Humidity (RH%) is NOT a Good Measure
Relative Humidity (RH%) is probably one of the most misunderstood terms we use when referring to drying and curing. RH% is made up of 2 absolute numbers: Dry Bulb and Dew Point Temperatures. This means that you can have the same RH% at 50° degrees and 80° degrees.

Think about that for a minute… by using temperature and dew point we control the Vapor Pressure… and have 100% control of the process.

And by controlling RH and temperature, you get the same result. In the photo you show, you clarify what is on the display, and thanks for that, because I need to adjust my RH targets accordingly. I was mistaken that the target RH is 53%, it is 53F which at 68F is 57% RH, so for now, I will use 57% as my target. A little closer to the 0.6 water activity boundary, but it seems to be reliable in Cannatrol's experience.

However, the point remains that by controlling to 57% RH at 68F, you accomplish exactly the same thing as by controlling dewpoint to 53 degrees. The two different terms simply describe the identical environment, which is shown by the picture of the display. 57% at 68F is identical to 53F dewpoint at 68F.

The claim that dewpoint is a better way to regulate the drying process is to me the most misleading part of the marketing. Dewpoint is calculated from RH and temperature, it is impossible to control dewpoint at a given temperature without controlling RH. They are for control decisions, identically effective, neither is better than the other.

I think I will stop there until I process some weed.

 

[Rick Dirte']

I’ve lost a few big colas to mold over the years. Not too much but it sure is a pisser when you put so much work into a plant and you lose part of it at the end.

 

[Fermented_Fruitz]

And by controlling RH and temperature, you get the same result. In the photo you show, you clarify what is on the display, and thanks for that, because I need to adjust my RH targets accordingly. I was mistaken that the target RH is 53%, it is 53F which at 68F is 57% RH, so for now, I will use 57% as my target. A little closer to the 0.6 water activity boundary, but it seems to be reliable in Cannatrol's experience.

However, the point remains that by controlling to 57% RH at 68F, you accomplish exactly the same thing as by controlling dewpoint to 53 degrees. The two different terms simply describe the identical environment, which is shown by the picture of the display. 57% at 68F is identical to 53F dewpoint at 68F.

The claim that dewpoint is a better way to regulate the drying process is to me the most misleading part of the marketing. Dewpoint is calculated from RH and temperature, it is impossible to control dewpoint at a given temperature without controlling RH. They are for control decisions, identically effective, neither is better than the other.

I think I will stop there until I process some weed.

Don’t think the cannatrol controls temp at all! Frank said his sat a couple degrees cooler than the room it was in so its gotta all be in the units ability to set and hold the internal rh based off your environmental temps!

 

[Fermented_Fruitz]

I’ve lost a few big colas to bud rot over the years. Not too much but it sure is a pisser when you put so much work into a plant and you lose part of it at the end.

It won’t prevent budrot just mold from forming during drying! If mold spores are already there tho not sure it prevents them from blooming!

 

[Rick Dirte']

It won’t prevent budrot just mold from forming during drying! If mold spores are already there tho not sure it prevents them from blooming!

Yeah I mis spoke. I’ve just had mold during cure. I have crazy RH swings in the garage depending on the weather.

 

[Lil Dab]

And by controlling RH and temperature, you get the same result. In the photo you show, you clarify what is on the display, and thanks for that, because I need to adjust my RH targets accordingly. I was mistaken that the target RH is 53%, it is 53F which at 68F is 57% RH, so for now, I will use 57% as my target. A little closer to the 0.6 water activity boundary, but it seems to be reliable in Cannatrol's experience.

However, the point remains that by controlling to 57% RH at 68F, you accomplish exactly the same thing as by controlling dewpoint to 53 degrees. The two different terms simply describe the identical environment, which is shown by the picture of the display. 57% at 68F is identical to 53F dewpoint at 68F.

The claim that dewpoint is a better way to regulate the drying process is to me the most misleading part of the marketing. Dewpoint is calculated from RH and temperature, it is impossible to control dewpoint at a given temperature without controlling RH. They are for control decisions, identically effective, neither is better than the other.

I think I will stop there until I process some weed.

I don't know if that's the "proper" numbers just stock image from their website I would see what users are actually using for numbers. I know frank just used stock settings.

I wanna get me one just cause the simplicity but haven't had the extra coin maybe by the end of this year for now I'm just sticking to brown bags and a small tent