Potland

Test Results anyone? THC, THCA, Formula...

States that have legalized in cannabis require testing for potency and contaminants in cannabis, and lab-testing cannabis is quickly becoming an important part of the industry. The tests for pesticides, mold, contamination, etc. don’t require any new or special analytical techniques and are part of standard practice for other agricultural products as well. With the right lab equipment, chemists can measure cannabinoids to a certain degree of precision if they do it right, but the lack of a standardized way of looking at the data has everyone confused.

The subject of this issue is Δ9-tetrahydrocannabinolic acid (THCA), which occurs naturally in the plant. THCA needs to be heated so it changes into THC, the active form that gets you high. All cannabinoids occur naturally in their acid forms, that’s just how their enzymes make them. The difference between THCA and THC is a carboxy group. Upon smoking, cooking or vaping heat gets rid of the carboxy so THCA gives of CO2, loosing about 12% of its weight in the process. Why does this matter for lab testing? Because THCA is heavier than THC, and lab results are given in percent mass.

The root of the confusion is the fact that different lab techniques give inherently different potency values. Depending on the lab, the analysis machine might use one of two separation methods: gas chromatography (GC) or liquid chromatography (LC).

GC happens at high temperatures, enough to completely decarboxylate all the cannabinoids in the mixture. The oven it happens in decarboxylates THCA before passing on to the detector, so it only picks up THC. This makes GC almost useless for testing edibles, because you need to be able to tell the difference between orally inactive THCA and active THC. Furthermore, decarboxylation happens incompletely at those high temperatures in the injector port, conserving no more than 70% of THCA, according to one study.

Liquid chromatography happens at room temperature and does not decarboxylate any cannabinoids, giving separate values for THCA and THC, which are always both present. These results need to be interpreted correctly, and hold hidden information about how the sample was handled and temperatures it has been exposed to.

Let’s look at an example. Given one lab result you could get three THC potency readings depending on how you read it, but only one method really stands to reason. Consider a made up lab result of Hypothetical OG that used LC, say it has 22.32% percent mass of THCA and 2.41% percent mass THC (active THC).

If you just look at the THCA value, you might think it has 22.32% THC. If you add the THC value to that, you might think this strain has 24.74% THC. Neither of these values is correct.

To get a real potency value you need to consider both THCA and THC, but with a correction factor for THCA before you add in THC. To calculate THCTOTAL:

 

THCtotal = (%THCA) x 0.877 + (%THC)

 

0.877 is the molecular mass (mm) of THC divided by that of THCA; this factor boils it down to a simple formula: take 87.7% of the value for THCA, then add on the value for THC. This formula also holds true for finding the active CBD content (CBD TOTAL) because CBD and THC have the exact same mm. Therefore the correct value of THC TOTAL for Hypothetical OG is 21.98%, the weighted average of THCA and THC.

To get a real measure of the potency of a strain of pot, you need to look at THC TOTAL. This is because the relative amounts of THCA and THC depend on the amount of heat the flower, dry bud or extract has been exposed to. Since this is always different, lab testing needs to see past this variable.

Since GC doesn’t work for edibles, many labs are switching to LC to test for edibles. If you know you’re looking at a lab test that used LC, you’ll need to use this formula to get a consistent value of THC TOTAL.

When looking at lab results, make sure to take this into consideration. Be suspicious of lab results that just give you one number for %THC. If the lab used GC, you won’t have this issue at all. The %THC given from a GC machine roughly reflects THC TOTAL.

Read the original article from High Times HERE.

Marijuana Doctors- Cannabinoids in our DNA

Did you know that you have cannabis receptors in your DNA? This means Cannabis must have been used as a nutrient for most of human evolution.

This means 4 key things: our bodies recognize cannabinoids, uses them, needs them, and our health is better this them.

A BIG THANK YOU!

A big thank you to all who came out yesterday! 420 was a great success. From our staff, to patients, customers, and neighbors, we all had a blast. A special thank you to Matt from Freshies Bagels and Juice for manning the much needed munchies food cart, and to Cesar for hosting our Cannabis 101 social as well as those who attended it, including Dr. Steve from MAMAs. We are looking forward to our next class event. Follow us on social media for great deals, news and classes in the meantime!

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Spring Hours are here!

We have extended our hours for Spring!

Come in Mon-Thurs 10a - 8p, Fri-Sat 10a- 9p, and Sundays 10a- 7pm.

Join us on Wednesday, 4-20! 

Our Canna Social and Cannabis 101 will run from 5-7, but we will be open 9-9 with specials all day!

For more details check out our FB Event here!

420 Canna-Celebration!

We will be hosting an intro to Cannabis 101 from 5:00p -7:00p with an open Q&A.
1.25 Cent Joints while supplies last starting at 4:20!

Deals, Specials, Giveaways and GG swag all day!
*Munchies will be available!!*
Extended hours 9:00 am-9:00 pm.
More details to come!

Our Labels just got better!

Our Compostable Labels
Are Now Made With Sugarcane Pulp!


Our new sugarcane face stock has a similar natural look and appeal to the old hemp material. It remains fully compostable, natural, vegan, and tree-free. It has been designed to be slightly thicker than the hemp material, which means it is more durable and significantly improved for machine application, as well as hand application.

We have spent months developing this new solution, and we are pleased to see that our regular customers already love it!
 

If you loved our natural hemp paper labels, these are even sweeter than ever!

Stinky Pete

Stinky Pete has been released! Stinky Pete is 1/2 Snowtracks, 1/4 Vortex, 1/8 Dynamite, and 1/8 OG Kush causing an intense body high. Testing up at 25% this strain has and Earthy, manly smell, with an herbal nutty flavor with notes of cheese.

This strain is named after Pete Bergeman, who was well known throughout the Hood River Marijuana industry and passed away doing what he loved. Pete did a lot from Otis Gardens and he left his mark by building many custom work areas in the garden. He ran a tight crew and was well liked.

When Otis popped some seeds from their private breeding stock they discovered a large, powerful, and smelly 9 bladed plant. Pete died around the same time this strain was born so it is named in memory of him.

Come down and try this potent strain!

Gaia Medbar gets DOPE

On Feb 1, 2016 Dope Magazine published an article about Gaia Medbars, a delicious chocolate bar which we happen to carry. If you haven't tried one, come down quick to get a taste!

"Edible enthusiasts unite in celebration as talented culinary artisans and visionaries shake the shackles of cannabis prohibition and create progressive new dishes using THC infused ingredients. Accomplished chefs Megan Endres and Zack Derck have teamed up with DOPE Magazine to repurpose and give new life to the handcrafted cannabinoid-laden chocolate Gaia Medbar."

Read the full article HERE.

Cannabis Topicals, Healing and Fitness

"Balms or salves go a step beyond lotions. They stay on the skin longer and penetrate deeper into the muscle, working best for the more severe localized pain... or joint pain in knees and hips.

This type of application also takes effect quickly, sometimes in as little as five minutes. I’ve experienced relief from cannabis balms that lasts as long as 10 hours, which takes away the need to continually reapply to keep the relief going...

For generalized body ache, nothing beats a soak in cannabis bath salt, which can help you and your body to get some much-needed restful sleep for athletic recovery.

A soak in a hot bath using a cannabis-infused bath salt gives immediate all-over relief with a wonderful aromatherapy experience to boot.

... infused variety provides a level of relaxation that other salts can’t."

Read the full article here!

So Fresh Super Bowl!

We are running an amazing deal on our top shelf strains from SoFresh Farms!

Starting at 3:00 pm Saturday Feb. 6 through 4:20 on SuperBowl Sunday Feb. 7th you can enjoy $30/eighths on Durban Poison, Nuken, Sweeth Tooth and Platinum Kush!

All Certified Clean Green, enjoy your "Super Bowl!"