[Anonymiss]

I made this graph back in 2014 from some data I found, and although I can't remember the source or much else about it I thought people might find it interesting.




eta: I've found the original study: Long term stability of cannabis resin and cannabis extracts

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[MDS]

I guess we'd have to assume that bud would depreciate in the same manner as the resin as it's not processed

 

I'm wondering about the storage conditions... Nothing is mentioned so I have to assume that kept in the dark still means its exposed to normal air, even if it's kept in an air tight container?.....

 

It'd be interesting to know how THC would depreciate if it was stored in the dark & in a near vacuum, or failing that something like pure CO2 Something that doesn't react, unlike Oxygen...

 

Interesting graph Missy

[Elevator dude]

Lefty turned me on to his cold curing method of storing bud long term. Airtight stainless steel containers with oxygen absorbing packets and 62% bovedas at a stabile mid 50's temp. The potency seems to increase the longer its left undisturbed up to a point I assume.

The longest I have been able to test this has been about 6 months and honestly you wouldn't even recognize the long cured bud to what was originally put in the container. The odor and potency far seems to just get stronger.

I really want to do more research into curing methods of cheese and the like I'm sure a lot of what has been learn over thousands of years could apply to our little hobby.

[Anonymiss]

I guess we'd have to assume that bud would depreciate in the same manner as the resin as it's not processed

 
I think it might depend on how that bud was packed.

I have a memory of the paper saying (or hypothesising) that the blocks of resin may have degraded more slowly than the extracts because the skins protected the interiors.

So, tightly-packed buds may degrade more slowly than loose ones because they have a smaller exposed surface area.

[MDS]

Or it depends on what the bud is packed in, gas wise... So that's me thinking that, elevator dude effectively saying it & your research pretty much backing it up...

 

No idea why the heck I said CO2 earlier, I reckon nitrogen would probably be cheaper Then again I may be wrong...

 

It seems the stuff that keeps us alive degrades nearly everything over time, especially anything organic! Iron rusts, food goes off & it looks like THC degrades...

 

Oxygen has a lot to answer for

[Anonymiss]

I'm wondering about the storage conditions...

 
I've found the original study: Long term stability of cannabis resin and cannabis extracts

[MDS]

 
I've found the original study: Long term stability of cannabis resin and cannabis extracts

 

Bit of a read I tried to download it but they wanted either a card number or Paypal, the spoilsports

 

I guess I could screen grab the lot mind you.... Maybe later or tomorrow..

 

Nice link Missy Cheers..
 

[Bandit 4freekin20]

Lefty turned me on to his cold curing method of storing bud long term. Airtight stainless steel containers with oxygen absorbing packets and 62% bovedas at a stabile mid 50's temp. The potency seems to increase the longer its left undisturbed up to a point I assume.

The longest I have been able to test this has been about 6 months and honestly you wouldn't even recognize the long cured bud to what was originally put in the container. The odor and potency far seems to just get stronger.

I really want to do more research into curing methods of cheese and the like I'm sure a lot of what has been learn over thousands of years could apply to our little hobby.

 

 

Or it depends on what the bud is packed in, gas wise... So that's me thinking that, elevator dude effectively saying it & your research pretty much backing it up...

 

No idea why the heck I said CO2 earlier, I reckon nitrogen would probably be cheaper Then again I may be wrong...

 

It seems the stuff that keeps us alive degrades nearly everything over time, especially anything organic! Iron rusts, food goes off & it looks like THC degrades...

 

Oxygen has a lot to answer for

 

 

I'm fairly anal retentive when it comes to a good cure. Trials along the way thru many errors and an experience in Colorado has me into curing techniques using cold temps in zero oxygen. And of course darkness

I hate to step on any toes but sometimes a different idea about how to do something is a good thing. Many cure methods in books and online are actually very bad ideas when it comes to getting connoisseur grade herb.

 

#1 is fresh weed does not compare what so ever to a proper cure smoke. Personally I might test smoke a bud after drying but after that I don't smoke or even extract weed for at least 9 weeks after drying but I prefer weed cured for at least 100 days. The longer the better. My private reserve is over a year old and I have some hashes over 2 years old and it keeps getting better.

 

 

#2 is warmish temps, oxygen, and light are mortal enemies to a good cure. Oxygen decomposes organic matter and should be all but eliminated. Oxygen absorbers work but I'm also working on installing vacuum fittings on my container lids to make sure all air is purged.

Light like in the graph deteriorates quality at a very rapid rate and heat degrades terpene quality the same way.

You also want humidity locked in at 55-62% with no swing.

 

I'm not going to lay out a step by step tutorial of what I do. I believe in independent thought and creativity from one grower to the next. The more ideas the better will help us fine tune the techniques but I'll offer a road to travel....

 

Take a page from how cheeses are aged in cool caves. Same with wines and meats. Fine cannabis IMO should be thought of and cured the same as those things.

Refrigerators, especially for wine are choice. Stainless steel rather than glass or plastic for a container. Flat containers rather than tall and narrow jars are preferred to eliminate head space as head space is not our friend.

Less is more is a good thing as I would rather have a kilo of weed divided into 15-20 containers rather than one or two very large containers.

If the dry is done well no "burping" should be needed as burping is actually counter productive by allowing a fresh air exchange. Terp gasses are lost in the air exchange.

There's really a lot that goes into a good cure. Maybe just as much as actually growing the weed. My best suggestion is grow much more than you cna smoke so you can experiment and fine tune a cure that matches the herb and how/where it's stored. I can tell you there's much more to it than filling a jar and leaving the jar in cabinet

[MDS]

I'm fairly anal retentive when it comes to a good cure. Trials along the way thru many errors and an experience in Colorado has me into curing techniques using cold temps in zero oxygen. And of course darkness

I hate to step on any toes but sometimes a different idea about how to do something is a good thing. Many cure methods in books and online are actually very bad ideas when it comes to getting connoisseur grade herb.

 

#1 is fresh weed does not compare what so ever to a proper cure smoke. Personally I might test smoke a bud after drying but after that I don't smoke or even extract weed for at least 9 weeks after drying but I prefer weed cured for at least 100 days. The longer the better. My private reserve is over a year old and I have some hashes over 2 years old and it keeps getting better.

 

 

#2 is temps, oxygen, and light are mortal enemies to a good cure. Oxygen decomposes organic matter and should be all but eliminated. Oxygen absorbers work but I'm also working on installing vacuum fittings on my container lids to make sure all air is purged.

Light like in the graph deteriorates quality at a very rapid rate and heat degrades terpene quality the same way.

You also want humidity locked in at 55-62% with no swing.

 

I'm not going to lay out a step by step tutorial of what I do. I believe in independent thought and creativity from one grower to the next. The more ideas the better will help us fine tune the techniques but I'll offer a road to travel....

 

Take a page from how cheeses are aged in cool caves. Same with wines and meats. Fine cannabis IMO should be thought of and cured the same as those things.

Refrigerators, especially for wine are choice. Stainless steel rather than glass or plastic for a container. Flat containers rather than tall and narrow jars are preferred to eliminate head space as head space is not our friend.

Less is more is a good thing as I would rather have a kilo of weed divided into 15-20 containers rather than one or two very large containers.

If the dry is done well no "burping" should be needed as burping is actually counter productive by allowing a fresh air exchange. Terp gasses are lost in the air exchange.

There's really a lot that goes into a good cure. Maybe just as much as actually growing the weed. My best suggestion is grow much more than you cna smoke so you can experiment and fine tune a cure that matches the herb and how/where it's stored. I can tell you there's much more to it than filling a jar and leaving the jar in cabinet

 

Quality post Lefty!

 

Cheers! Seems I was thinking along the right lines years ago...
 

[Enzyme303]

It makes me wonder if a tall fridge to slow dry with a variable temp controller may work good , although it dont now off hand what the RH would be or if that would be easily controllable too,slow cold dry may be a worthy addition to the cold cure method.

 

Good info @lefty and @Anonymiss good thread, thanks all for other input too

Edited by Enzyme303, 22 June 2018 - 08:29 PM.