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Syringe filters are what I use when I need to filter that low. They can handle ethanol no problem. Ethanol is not really that strong of a solvent...

I have a post on how I do winterization https://www.rollitup.org/t/bho-how-i-do-it.979106/ Removing most of the alcohol does not need much heat if you blow air over the surface. I use a round bottom flask and an aquarium air pump. I only need to warm the flask to about 40C. It helps to ensure...

My latest batch the results. 28.5g of dewaxed oil. Early Amnesia CBD (9.5% THC, 11% CBD). I know other threads talking about yields. 187g of dried Early Amnesia CBD bud yielded 28.5g dewaxed oil (15%) My other batch was a Durban Poison 95g of dried bud yielded 18.5g of dewaxed oil (19%)

Agreed, closed loop is better and I will move to that as funds permit. My goal here is giving people a viable safer way to do BHO. Looking at youtube makes me cringe. I am shocked more people arent blowing themselves up based on the advice there.

I find it effective to pack whole flower at the bottom of the column. 1 inch usually does the trick. I can then pack finer particles on top and not have any go through.

I thought I would post how I do BHO. My motivation is that I have seen a lot of internet videos/posts that are questionable from a safety perspective. I have 14 years experience as a synthetic chemist including 3 years in natural product extractions. Along with that is multiple degrees in the...

Agreed, not worth it. I did a test once and found my first run yielded 6.5g and my second run yielded 0.1g. As Mr.Goodtimes indicates the color of the second run is darker, tastes bad and I would add does not get you high.

I have been using a 200W eleaf vape for my eliquids. I use wax liquidizer for all of my vaping. I find you get a few tanks before needing to change the coil. The coils are $2 each so pretty low cost. It gives excellent control of the vaping experience as you can adjust the power level. 200W...

Distillation at that temp will decompose the THC/CBD. The particle size of your alumina oxide will have a normal distribution with a mean of 50 micron. This means some alumina particles would be below 15 micron. The solution to your problem is to dissolve the extract in a small volume of...

I have a Crop Kings Durban Poison and the flowers look quite a bit different to other strains that I have grown. The calyx are more pronounced than other strains that I have grown. Should I be expecting more stigmas to be coming out of the calyx? Currently I am day 63 of flower (crop kings...

I have the Robinair 15510 VacuMaster Single Stage Vacuum Pump. The pump above is definitely a step up in terms of vacuum ability. A better pump is required when using a vacuum chamber as you do get a greater loss of vacuum because there is more places for the air to escape. That being said the...

Personally I dont think isopropyl is safe to use unless you use a vacuum and even then you have to be careful. Fadedawg is correct that if you purge to below FDA standards you are safe. The challenge is that there is no way that a home extractor could determine the concentration of isopropyl...

Excellent, good to know. Thanks for the help.

From seed. It is an Early Amnesia CBD from dinafem.

I dont know whether it is an issue or not but one of my buds seems to be branching out (2nd photo) while all of the other buds are more christmas tree like (first photo). Is this heat stress or something else? Note: my plants did go through a stress period. I had to travel and left plants for a...

I make infused Shea butter/Apricot oil blends for arthritis treatment. I make dewaxed BHO as the primary ingredient my vape cartridges and topicals. For topicals I decarboxylate by putting the oil into a round bottom flask and heat in oil bath 250C for 30 minutes. The decarboxylated oil...

I would guess he means vegetable glycerin.

What solvent mix are you using to do that?

How are you extracting? I'd be more worried about isopropyl alcohol residue than waxes if you are using iso.

Yup very discrete, that is the best part. I can even vape indoors and have my wife walk in 5 minutes later and not notice a thing (she hates the smell).