Inconsistent yields

I need help solving this riddle!

So i ran some mid grade 4.5g's unfrozen, and un grinded, straight into the extraction tube. I got a 0.6g return. a little disappointing considering I get 0.5 to 0.9 yield from my shake.(It's the shake of that weed too! so it makes zero sense to me)

So the next day, using the same weed I put 4.5g's Grinded fully this time,unfrozen into my extraction tube and get a 1g return.

Now I'm thinking, okay, grinded weed = more yield. So I bud up 4.5g's of my high grade now, and stuff it into the tube and I get a 0.7 return.

My tube is cleared and cleaned after each run, I blast outdoors, but not when its windy or raining obviously. my Pyrex glass is always cleaned before each use. Honestly i'm stumped guys I seem to get the same yields regardless of the pot I use, there must be something im doing wrong. For the mid grade, it was scaled at 4.5g's before blast and it comes out at 3.6g after blast. Also I use Puretane, I never change my butane brand. I use more butane then needed too. Roughly 1/3 or half the bottle. I always blast til its clear and a bit longer.

you would have to do about 100 of those small runs to get a median on what you should expect. I dont think you can compare 3 runs and say why one was better. You are going about it logically but I dont think its that simple.

BRANDON77 said:

you would have to do about 100 of those small runs to get a median on what you should expect. I dont think you can compare 3 runs and say why one was better. You are going about it logically but I dont think its that simple.

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That makes sense, but it still seems like a big gap for such small batches. If I were to do a whole oz of 4.5g batches my yields would be between 3.6-6g's. but your right on the data i have is minimal, I ran about 50g's of shake in 4.5g runs but I expected inconstancy from my shake because some would be leaf, some would be sugary. I was surprised though when I found my shake and Nug runs were giving the same level of inconstancy and when my high grade gave a smaller yield then my mid and even some shake runs, that was mind boggling and depressing af lol.

I'm a noobie when it comes to this , ive never done oz run's from what i read you get from 3-6g's but i thought that was depending on the quality of the pot.

Stick it in a oven before u start blowing gas thru...

25% return on prime bud is considered good and about half that for prime trim is about average. Less than prime bud or trim are less, as are some strains. I've gotten as low as 5.8% from a high CBD land race.

As noted, when running 4.4 gram batches, it is not likely to be uniform. What are you using for a tube?

Examine the spent material with at 100X to see if you are leaving anything behind.

Fadedawg said:

25% return on prime bud is considered good and about half that for prime trim is about average. Less than prime bud or trim are less, as are some strains. I've gotten as low as 5.8% from a high CBD land race.

As noted, when running 4.4 gram batches, it is not likely to be uniform. What are you using for a tube?

Examine the spent material with at 100X to see if you are leaving anything behind.

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Yea but the mystery is I got a 23% yield from my mid, and a 16% yield from the prime. I plan on doing larger scale runs, but I figured it would be smarter to do smaller runs with my shake to get a understanding of the process first.

I'm using a Stainless Steel turkey baster you get from bed bath and beyond.

I'm starting to think it may have something to do with my coffee screens. I use bamboo coffee filters and they're quite thick. I recall re-using the same filter for a few runs, but i don't recall which ones, not sure if i re-used the filter for the second mid grade run. Also decarbing seems possible. My mid is definitely older then my prime and pot naturally decarbs slowly over time from what i've read.


I've also double checked my scales accuracy after a friend mentioned that might be the issue.

Did you examine the spent material with a microscope?

Fadedawg said:

Did you examine the spent material with a microscope?

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Not yet, I don't own a microscope. From the naked eye the material still has THC on it, but it feels different. I plan on doing a second run soon with alcohol, I think that should grab up anything I missed. I collected some of the filters I plan on running alcohol through that as well, and see how much is getting trapped.