• Slide2
  • te-700 system with heating jackets
  • Tamisium Booth
  • Tamisium Extractors with Heating Jackets
  • Tamisium Family of Extractors & Lexan Lid
  • TE-700 With Heating Jackets System
  • Tamisium Extractors Convention Booth
  • Tamisium Family of Extractors & Lexan Lid with Heating Jackets


I, David McGhee, would like to welcome you and introduce you to the first original HIGH PERFORMANCE HYDROCARBON EXTRACTOR that recovers and cleans the solvent used for reuse without the aid of pumps of any kind. With 20 years in the extraction business, testing and refining this process you can be sure you have the best that we have to offer. A culimination of 20 years worth of work involving and ruling out various processes while only keeping what proved safe and effective. In 2010 the Tamisium was first sold to the public. Since them countless copies making cheaper versions require the use of the very pump we removed in 2004. I will cover the reasons why this sytem is better and why the HVAC pumps were removed and why a safe HVAC pump will never be created.

Using specially designed costly ASME Coded, Certifiable, FAST Tanks allows the use of a very fast distillation process to recover the volatile solvent that has a lower boiling point than any compound you would extract out so that you can capture all those volatile compounds extracted as well as all other compounds produced by a plant. These tanks cost more to build but you can amortize out immediately. Using a pump that has to be rebuilt and kept up means you will never amortize out. This cost is passed on to the consumer forever with great limitations as you will learn.

Using Fast tanks and Distillation instead of a Air Conditioner Recovery Pump allows more control over the process than ever because you can immediately send the appropriate volume of solvent, in liquid phase, through the plant material in one slow or fast burst, at any temp, without waiting for a air conditioner recovery pump to recycle the solvent to loop it back through your plant material. Being able to extract quickly avoids waxes and other lipids and prevents the need to extract at super cold temperatures. This can only be done with a properly volumized tank setup operating on a special set of loading ratios in relation to solvent and plant matter. Using a improperly designed setup requires you to recover and loop the solvent over and over again through the plant matter adding unwanted time enabling the solvent to dissolve excessive amounts of wax out of the plant.

It is better to extract faster and increase production and eliminate the need to extreme cold temps by doing so.

Using a pump with improper volumes of solvent requiring looping effects density, polarization and temperature BTU exchange because the pump vaporizes the solvent during extraction.

The maximum amount of molecules while in LIQUID phase occupy every cubic centimeter of space to maximum density versus when the solvent is being vacuumed with a pump which puts it in gas phase. Using an appropriate amount of solvent in liquid phase in the correct liquid volume is faster gives the most control of contact time, temperature and phase while allowing co solvents to be used to extract other things that butane alone may not be able to dissolve due to non polar limitations. Such as polar compounds. Not everything in the plant that is useful is non polar and dissolved by butane alone.
Only this system gives the ability to extract at low pressure with a cold or hot process, slow or fast for any length of contact time with more than one solvent simultaneously or alone and safely recover the solvent after you use it. This low pressure and low temp pump free process protects the delicate integrity of fragile molecules.
The recovered solvent can be used over again indefinitely due to the gentle nature of distilling at low temperatures and pressures verus the high friction heat and pressure created by a pump.

By using distillation which keeps the solvent in liquid phase it allows us to use a liquid solvent at any temp and contact time to target and or avoid specific compounds based on their physical properties such as molecular size, polarity, melting points, boiling points, freezing points and condensing points. This process starts with a sub freezing solvent because you use the recovered solvent was just condensed by dropping the temp to condense it. Adding heat to that solvent is how you perform a heated extraction. So colder is first faster and ready to go.

A loop system or pump based system brags about speed claiming they are faster because they use less solvent and have less to recover.
The fact is that you have no choice in the matter in how much solvent is required. You have to fill the column and hydrate it with liquid solvent to begin dissolving the compounds that will be washed out by the second and third volumes. You cannot decrease the amount required to do that.
Then you have to wash the second volume out with a third volume because the first and second sort of mixed together.
A portion of the thrid volume will stay behind due to absorption or cappilary action surface tension of the plant matter and liquid solvent.
Just like making coffee or tea. You have to send more liquid in to get that first liquid out.
We offer a volume capacity that allows you to use a 4:1 loading ratio so that you can remove some of the butane solvent and add a co solvent.
This ensures you do not over fill your tank and that you still have a adequate amount of butane.

Pump systems use less solvent and are faster with the pump.
What they dont tell you is this. They are looping that smaller amount of solvent back trhough over and over again until 3 volumes have passed through. Hence the term loop extractor. That 3 volume rule is only if they are using the right temp, right polarity while in liquid phase. Once the pump starts vacuuming the tanks that are holding the solvent, including the one with plant matter in it, the solvent goes into gas phase. Now 3 volumes of liquid density molecules spreads out into 10-20-40 volumes of gas or more. Who knows when 3 volumes of liquid have been passed through then? A sight glass is the only way without complicated math. It is dynamic and hard to calculate. A sight glass shows you a color change from dark to light indicating that the compounds have been removed and nothing is left. Or you just set it for more time than it needs which would be SLOWER.
We have been through all this. This is old news.
Watching these guys start at the beginning and brag about being the most advanced has really just started to get under my skin and should scare the hell out of you.

When using co solvents, is the pump only recovering the butane or is it recovering the co solvent too? As a rule, solvents are removed lowest boiling point first. So how can you be sure you are recovering the co solvent and looping it back throught at a known rate. Dont worry, it keeps getting more complicated and uncontrollable. So rather than tell them what is wrong and how to fix it I will just stop here.

15 years ago we used these pumps on private systems we built that would rival what is being made today by competitors. We eliminated the need for these Dangerous Contaminating Refrigerant Recovery Machines after a fire. After the fire I noticed all the solvent recovered without the aid of the pump. It was then that I understood that the pump was nothing more than a costly risky hinderance to the prcoess. What was needed was a more efficient tank design because butane boils all the time if the temp is kept at room temp and the pressure is relieved by a cold tank. There was no need to pull a vacuum on a already boiling solvent. It was a matter of temperature control and a few other factors.
Although more costly, these tanks allowed much faster evaporation which allowed us to eliminate the pumps forever, we eliminated a permanent cost fixture that did nothing for the process but hinder our progress while presenting a multitude of hazards and risk.
Although we could put a pump on our faster tanks and leave our competition in our wake in regards to recovery speed the speed gained is not worth the risk and lack of control. So even though we have the fastest tanks that are pump free we would never put one back on.
The best analogy is speed limits on a HWY. We could all get to work going 250 mhp but we set a speed limit for safety. One has to be placed on production as well when dealing with flammable solvents under pressure. Life is more important and I am speaking from experience. Dont learn the hard way just because some official said it is safe.
How many drug commercials do you see on TV that are immediately followed by a lawsuit commercical because some official said it was safe.
They make mistakes and they are making one now. I warned them all and feel obligated to continue doing so.

A TAMISIUM is more costly initially but you will not be bothered with replacing, repairing and buying unsafe leaking redundant pump systems to keep your business operating at a level that a pump could never achieve. As a matter of fact you could buy 2 of our more costly systems and the cost would amortize out faster because the cost of those pumps and the maintenance would never go away. Neither would the risk of fire and contamination when using a HVAC pump. If you want to use a pump with your system you can omit about half the parts and cut your initical cost in half. But again we do not know of any food grade safe volatile flammable solvent recovery pump that exist. We would be using it and endorsig it for cold inefficient processing where the benefits of going pump free are not needed or wanted.

When we used pumps prior to 2005 we never had this control that we have now and could only produce a minimal variety of extracts usually only one variety. I saved some of my old discarded plant material and reextracted it with the new system. I got more out and more variety.
Utilizing pumps gave us inconsistent completion times due to being in gas and liquid phase part of the time in the column of plant matter. They also had to be constantly monitored due to the failure potential of any electically powered mechanical reciprocating engine. We were able to allow the tamisium to work while we slept coming back in the morning to a finished extraction process.
The need to monitor the pump is why a HVAC pump is built to be used outdoors for short periods of times. Not regulated or approved to be used in consumable production anywhere except by a few confused states led around by biased consultants because the state officials were pressed for a decision and they simply just dont understand what to do.

Most do not understand solvent density or hydraulic fluid expansion, thermal expansion and how this effects safety in tank design.
When a fluid is pressed it produces hydraulic pressure which basically means it does not compress and therefore exerts a immediate equal force to the force being applied.
When in gas phase it does compress until all those gaseous molecules are compresssed into a smaller space until they reach a liquid hydraulic state if possible with that particular solvent. Hence the reason CO2 has to use pressure to be effective. Changing the temp of a liquid can produce astronomical pressure forces that are equal to a artificial force created from a hydraulic jack for example. Not understanding how to allow for expansion of heated liquids can be very dangerous. That is more on the subject of tank design. 
In regards to extractions, the rule is this,, liquids connot compress but gases can. For a molecule of solvent to bond with a like polarity molecue in the plant and be carried out that molecule has to be present in abundance and they have to match in their polarity. If you extract with a liquid you will have the maximum amount of molecules present in a Cubic Centimeter of space. With a gas like CO2 or any liquid solvent under a vacuum which can convert it into a gas, such as when a pump is used, you will have fewer molecules present in a cc of space. When in liquid phase you cannot compress even 1 more molecule into that space. It is maxed out. If you filled your tank all the way with a liquid and tried to cram another cc in that tank it would stretch it out or rupture it if you continued withot allowing some of that pressure to vent off via a safety vent.
If any heat hits that tank when full, the liquid will expand. I am talking about a 1 degree rise in temp creating over 1000 psi rapidly. The only thing that prevents this rise is stretching metal. What these fly by night crews that build extractors fail to understand is that hydraulic force is equal to hydraulic expansion and thermal expansion is created faster and easier. In other words, adding temp to a hydralically filled tank can be accidentally done simply by a change of temp in the room completely unseen until the tanks rupture.
It does not matter if I am pumping the solvent in deliberately or if I allow a tanks temp to increase by accident. The result will be the same.

This lack of molecules in a cc of space with gases is why you need more volumes of gas solvent to extract with when using CO2 or a pump system. The pump systems or loop systems may trick you when they tell you that you are using less sovlent and therefore faster. But the truth is that this smaller amount of sovlent is being recovered and recirculated and recovered over and over again a unknown amount of times through the plant because they dont know if it is in liquid or gas phase because they are vacuuming it out and pumping it in at the same time to keep the process going or looping. They actually have to view it when it comes out to see if it is done or needs to keep going. The pumps are ok with CO2 and that does not present much of a problem except that CO2 ruins seals requiring frequent rebuilding of the pumps. But when using a flammable solvent pumps are not an option and do not bring anything beneficial to the table except a little speed which can be had by spending a little more money on the initial design by building faster tanks which would eliminate all future pump expenses and their problems and inherent limiations.

These problems coupled with the risk and contamination forced us to come up with this current solution.

Remember that the HVAC industry regulates the manufacture of their equipment for AC systems and refrigerant. When a tank is made to hold solvent or refrigerants it is covered in machining oils and other contaminants that exist not only in the tank surfaces but all the tanks and lines before them as the solvent is transferred, dissolves these toxin and is carried into the next tank. Why would they clean it?? an AC unit does not care what it eats.
They would require different regulations in manufacturing if they ever thought those pumps or refrigerants would be used to produce consumables indoors in a lab versus just pumping refrigerants in and out of your AC system setting OUTSIDE on the side of your home.
Accepting a Safety Mark from the HVAC industry to be used in the Food and Drug industry is not ethical.
Safety Marks do not cross over into different industries. If they did your chef would be allowed to start cooking your eggs on car tires because car tires are rated safe for cars on roads.
You may ask how any of these systems have ever been approved or certified. When I asked one Engineering firm responsible for peer reviewing systems in CO about this, his response was that they are fully aware that the RRMs are unsafe when used as they are but those RRMs are not part of the peer review process and not their responsibility. I noticed none of their review process mentioned anything about calculating coefficients of expansion when dealing with various solvent. Propane has a 20% expansion rate when heated 100 degrees F. It is easy to fill a tank at 0F and heat it even accidentally to 100F. Hopefully these rules and regulations will evolve to make as safe a process as possible. We have done most of the work for them.

We are currently producing ASME coded Tanks that use Industry Rated and Approved components for the pressures, temps and solvents used. 
They have been reviewed by a professional engineer in CO, stamped and approved. This allows them to be certified.


The Tamisium Extractor operates using basic principles of physics without the aid of mechanical or electric compressors or pumps. By taking advantage of the enthalpy physical characteristics of Butane we harnessed the energy released from the butane when heated and cooled. This allowed us to eliminate all these cumbersome expensive practices to move solvent from tank to tank and from gas to liquid phase and back again. Combining all the great features of all extraction systems of the world into one effecient simple to use unit for the first time.
Extract delicate molecular structures with multiple or single solvents to target specific components in a plant and learn to use time and mild temperature, mild pressure and various solvent combinations to expand your product variety and quality. A Tamisium is capable of being run so economically that we will have to reevaluate plants and extractions that were once cost prohibitive.

As you can see from the photographs on the website, you are getting a heavy duty, laboratory quality, food grade, fully capable extraction apparatus. This is a professional tool and system and with it you will produce the highest quality extraction available in the most cost effective way. It is 3 times faster than the current industry standard. 1/3 the cost and produces a higher yield, more varieties and less expensive to operate and far less complex to use.

The Hydrocarbon Solvent of choice is Primarily N-Butane. Organically friendly and NON-TOXIC. This solvent has been used in the food industry for decades because it is one of the easiest solvents to cleanly evaporate away, leaving no trace and does not react with the food products being extracted. You may not be aware that butane is the propellant used in cooking oil canisters. Why not, it is safe, non-toxic, evaporates completely and dissolves the oil readily so it can be sprayed out of the low pressure canister and it provides the pressure to do so. The manipulation of this low pressure created by butane when placed in a closed system is what you will learn how to use and is what makes this system so incredible and easy to use.

The control parameters we control during extraction allows the most control of any extraction system. They are outlined below.

We call this the 6 parameters or QDTPTP process.

  • Q-uality
  • D-ensity
  • T-ime
  • P-ressure
  • T-emperature
  • P-olarity.

Is is through the manipulation of these repeatable adjustments that you will be able to duplicate any extraction process and repeat what you have done to produce the same consistent product every time.

All done without requiring additional expensive complicated dangerous equipment. When you are done extracting, the apparatus will recover the solvent for reuse and it will clean and separate from your product and any other solvents used with butane, during the recovery process. We even supply a proprietary product and process to remove other solvents used during the extraction process.

But before you can do this you have to understand what it is that you are doing:

It is as simple as this. There are 5 effects you can enact on an extract during and after extraction to isolate avoid or include a specific molecule if you know what they are. With a Tamisium Extractor you can actually enact more of these effects during the extraction process than any other extractor or as with any extracted material you can isolate them after they are removed from the plant.

They are as follows:

1. Size - Knowing the size of the molecule will allow you to filter out various compounds based on size through a series of ever decreasing micron size filters.
2. Melting Point and Freezing Point - Knowing the melting and freezing points will allow you to melt it out or freeze it and avoid it.
3. Polarity will allow you to dissolve it out. Time will allow you to do this more or less efficiently. Once removed you can place different molecules into different fractions of solvents of varying polarity within a separatory funnel.
4. And boiling and condensing points
5. Weight - Knowing the weight will allow you to spin them in a centrifuge and separate them based on their molecular weights.

Time and temperature can allow you to do these things more or less efficicently because time can allow a process to complete and temp can allow that to happen with more or less time. To some extent Temperature can actually change the environment and even the molecular structure which can be good or bad depending on what the change is.
But you wont know what you are including, avoiding or isolating unless you first get it all out, isolate it and have it analyzed.
Using color or texture is not a good way to identify compounds. And isolated compounds can be useless in some forms of ingestion. You may be able to vaporize it and inhale it directly into the blood stream but you may not be able to digest it and get the same result and so on.


This extractor is not limited to essential oil extractions, perfumes or rare botanicals. Use it to extract biofuel from seeds, soil or clean oil laden machinery in a special cleaning vessel. It may be the most versatile extractor ever produced. It is definitely the highest yielding, easiest and lowest cost system available today when all cost are factored in.

David McGhee
CEO Tamisium Extractors Inc. TamiE Inc.