Difference between decarbing

[Rock.A.Roo]

Hey everyone!
What is the difference between a fast decarb at high temps vs. a longer decarb at low temps?
I decarb at, around, 220°F for, about, 50 minutes, but I've heard of people going around 350°F for a much shorter time...
What is the difference between the two ways? What different changes are happening in the two processes?

 

[Dr. Who]

350? They screwed their weed that way!

Right about 330 is where the good stuff will cook off! (how does a vape work?)

That said. 300 for 10 min does work but, the house will stink.
Then again, when don't it?

 

[Rock.A.Roo]

Honestly, I was just using general numbers... wasn't exactly sure of the specifics!
So, what happening between the higher temps at shorter cooking times and the lower temps at longer cooking times?
Does a fast cook with higher temps work better for a sativa? Better for an indica?
What about the converse? The longer cook with lower temps?
I guess I am asking if I'm wasting my time with the longer cooking time with the lower heat?

 

[Seedperson1]

220f for 50 minutes will convert approximately 90% of the thca to thc. Or so I’ve read.

 

[Burt Hooter]

I been doing 240 for 30 min? Should I run that longer? Say 50 min?

 

[Rock.A.Roo]

I been doing 240 for 30 min? Should I run that longer? Say 50 min?

Exactly! That's what I'm talking about!

 

[Rock.A.Roo]

As in... trying to understand the difference..

 

[Mr_X]

The difference is if its too high of a temperature it may cause degradation, turning THC into CBN and can also evaporate terpenes. CBN forms from oxygen and heat, a chemical reaction called oxidation. CBN will give you a sleepy feeling.

 

[Jimbo the Gael]

At a high enough temp the THC will vaporize. That's what @Dr. Who was getting at. You can go for a higher temp for a shorter time but you run the risk of turning your weed into a pile of grass clippings.
There is a chart floating around that is supposed to show the times and temps for decarbing, but I don't know how accurate it is. I usually go with 220f for 45 minutes, and I'll add a bit of time if it doesn't look done.

 

[Mr_X]

i decarb mine at 250F for 30 minutes, then i let it cool for 10 minutes before i make the butter.

 

[Rock.A.Roo]

So, basically, it's the same outcome, just a different process... gotcha...
Honestly, I kept trying to figure it out, but only got instructions - not explanations...