Pile of curing weed

BobCajun

BobCajun

Well-Known Member
Precisely, mold likes cold, which is why at 100 F and higher it becomes rare. It would be negligent to dry weed at room temp.

And in response to "Dry it anyway you want OP but dont be saying none of us cure our harvest. Thats just a silly thing to say." Okay, you do cure your harvest, but only in the same sense as "curing" concrete or fish. Not in the same sense as curing tobacco though.
 
a senile fungus

a senile fungus

Well-Known Member
BobCajun said:
Precisely, mold likes cold, which is why at 100 F and higher it becomes rare. It would be negligent to dry weed at room temp.

And in response to "Dry it anyway you want OP but dont be saying none of us cure our harvest. Thats just a silly thing to say." Okay, you do cure your harvest, but only in the same sense as "curing" concrete or fish. Not in the same sense as curing tobacco though.
Click to expand...
How long have you been growing?

How many successful harvests?

Merely curious...
 
Chunky Stool

Chunky Stool

Well-Known Member
Lucky Luke said:
Your right as far as im concerned. Op is drying at room temps (round 40c) and then at slightly higher than room temps (round 50ish C).

He probably isnt decarbing either as I dont think his temps are high enough.

Some science at 240F:

Results of Decarboxylation Experiment
The following charts show the results of the 30 minute and 60 minute decarboxylation experiments. Also included are the lab results from testing done prior to any artificial decarboxylation to establish a starting point. Note that because of the age of both the kief and the trim, decarboxylation had begun to take place to some degree naturally. This may not be your starting point, but should not affect the results of the experiment much.

Kief
Compound Before Decarb 30 Min Decarb 60 Min Decarb
THCA 24.5% 2.6% .1%
THC 3.8% 25.4% 25.5%
CBDA .6% .3% .3%
CBD 0% 1% .1%
CBN .4% 1% 1.4%
Moisture 0% 0% 0%
Total Cannabanoids 29.3% 30.3% 27.4%
Cannabis Trim
Compound Before Decarb 30 Min Decarb 60 Min Decarb
THCA 6.5% 2.9% .2%
THC .6% 4.8% 6.9%
CBDA .2% .2% .1%
CBD 0% 0% .1%
CBN 0% 0% 0%
Moisture 3.4% 4.5% 0%
Total Cannabanoids 7.3% 7.9% 7.3%
Testing provided by SC Labs

As you can see from the two charts, 30 minutes was not quite enough to completely decarboxylate either the kief or the trim. At 30 minutes the kief was about 90% decarboxylated but the trim was only about 60% decarboxylated. This difference is likely because the trim had a higher starting moisture content. After 60 minutes however, both keif and trim samples were close enough to 100% decarboxylation for my satisfaction.

So there you have it. 240° F for 60 minutes should be enough to decarboxylate any cannabis with a reasonably low moisture content. For material with higher moisture content, the time can be extended but the temperature should not be increased. If you are concerned about losing organic compounds, lower heat can be used but the time should be extended to compensate.


Extracted from http://www.marijuanagrowershq.com/decarboxylating-cannabis-turning-thca-into-thc/
Click to expand...
My decarb method for butter weed is super easy.
  • Pre-heat oven to 300 F.
  • Spread weed out on a sheet of aluminum foil.
  • Turn off oven.
  • Put weed in oven. (some heat will be lost)
  • Come back after oven has slowly cooled. (1+ hrs)
 
BobCajun

BobCajun

Well-Known Member
Here's some more accurate curing conditions. Turns out the RH can be lower than the 72-75% I got from another source. It also says that below 60 F very little loss of chlorophyll takes place.

"Although proper harvest timing is important, the most critical factors that lead to green tobacco occur in the barn. Properly cured tobacco requires mean daily temperatures of 65° to 90°F, mean daily relative humidity of 65 to 70%, and a minimum airflow of 15 ft/min (0.17 mph)."
source
 
a senile fungus

a senile fungus

Well-Known Member
BobCajun said:
Here's some more accurate curing conditions. Turns out the RH can be lower than the 72-75% I got from another source. It also says that below 60 F very little loss of chlorophyll takes place.

"Although proper harvest timing is important, the most critical factors that lead to green tobacco occur in the barn. Properly cured tobacco requires mean daily temperatures of 65° to 90°F, mean daily relative humidity of 65 to 70%, and a minimum airflow of 15 ft/min (0.17 mph)."
source
Click to expand...

Those are nearly the exact conditions that I dry in: 65°, 60-65%RH, a tiny bit of airflow. Once the bud is around 60% RH in the jar, then it is good to go, and the wait for the cure begins.
 
BobCajun

BobCajun

Well-Known Member
a senile fungus said:
Those are nearly the exact conditions that I dry in: 65°, 60-65%RH, a tiny bit of airflow. Once the bud is around 60% RH in the jar, then it is good to go, and the wait for the cure begins.
Click to expand...
Yeah but you have to keep it at 65-70% RH for 2 weeks for yellowing to occur at room temp. If you bothered to heat it to 100 F it would be done in 2 days, but that would be insane, right?
 
a senile fungus

a senile fungus

Well-Known Member
BobCajun said:
...


It would be negligent to dry weed at room temp.

...
Click to expand...
BobCajun said:
"Although proper harvest timing is important, the most critical factors that lead to green tobacco occur in the barn. Properly cured tobacco requires mean daily temperatures of 65° to 90°F, mean daily relative humidity of 65 to 70%, and a minimum airflow of 15 ft/min (0.17 mph)."
source
Click to expand...
BobCajun said:
Not in the same sense as curing tobacco though.
Click to expand...

???
 
a senile fungus

a senile fungus

Well-Known Member
BobCajun said:
Yeah but you have to keep it at 65-70% RH for 2 weeks for yellowing to occur at room temp. If you bothered to heat it to 100 F it would be done in 2 days, but that would be insane, right?
Click to expand...
I guess you're trying to rush this process, more power to you.

I'm not worried about yellowing, or browning. I'm worried about slowly getting the RH of the bud down, preventing mold and undesirables, preserving terps and oils, and then allowing it to slowly age. The color change is a result of these processes, I'm not forcing a color change via increased heat.
 
dstroy

dstroy

Well-Known Member
Properly cured tobacco isn't done anywhere near room temp. And I'm pretty sure that mold likes right around 70f or so best, at least in my limited experience it does. And tobacco leaves are also fermented to reduce ammonia content. I'm not sure I know of anyone that ferments their flowers or trimmings.

But yeah, decarboxylating is obviously a thing, and in the process of doing that you're destroying some of the stuff that makes the plant green. And also like I said before, I'm sure it makes great edibles but I won't be buying any loose in a bag, because it looks like leftover stuff from my vaporizer.

Also, according to the dude (Richard stoner of agrihouse inc) who built the thing that NASA takes up into space to grow different kinds of plants, plain water doesn't leech out nutrient salts, rather it encourages plants to use any surplus salts left over from fertilizers. But the best way to prevent buildup of nutrient salts is to not use too much.
 
BobCajun

BobCajun

Well-Known Member
a senile fungus said:
You bashed room temp, then posted that properly cured tobacco is, on average, near room temp.
Click to expand...
Yeah but most tobacco is flue cured. Would they do that if it was not a good thing to do? I never bashed room temp. Room is one of my favorite temps. It's just too low for timely curing and encourages mold.
 
SaltyNuts

SaltyNuts

Well-Known Member
RM3 said:
Tis sad that folks don't get this, most stuck in the mob mentality of what good weed is.

There are many different ways to ferment and cure, when I designed and built my fermentation chamber I studied not only tobacco but tea leaves as well. Hell we even make our own sauerkraut and apple cider vinegar ,,,, fermentation is fun 8)

More folks should be experimenting with this and discovering things,,,,, like it changes the high and can make it much more intense. I recently got into makin Malawi Cobb's and while there is no bag appeal to em the high is incredible
Click to expand...
most people would think brown weed is crazy talk, but I kind of miss the quality Colombian dark brown weed from the 80's. A product of a fermentation cure technique.
 
You must log in or register to reply here.
Top