Co2 Frequently Asked Questions

What are the effect of liquid Co2 on my biomass?
Because of several desirable characteristics of carbon dioxide in gas, solid, liquid, and supercritical states such as inertness, non-explosiveness, non-corrosiveness, high volatility, cooling ability, and low-cost, carbon dioxide is being used in a variety of applications in food and processing industries. Applications of carbon dioxide in the food industry include: preserving fruits, vegetables, meats, food grains, and liquid foods; inactivating microorganisms; and extracting oils, flavors, colors, and chemicals. Please refer to this scientific article about the safety of Co2 and the multitude of uses in the agricultural and food industries.

Applications of Carbon Dioxide in Food and Processing Industries

What kind of tank is needed to operate this device?

A high-pressure Carbon Dioxide Co2 Siphon tube tank is required. Also known as a "Co2 Siphon Tank" or "Dip Tube Tank". The Siphon tank has a tube that runs down the center to dispense the liquid Co2. When placing your Co2 tank order with your local supplier, make sure you ask for a Siphon tank. A standard Co2 tank with NO Siphon tube will not work. Most standard Siphon tanks come in sizes of 25 or 50 pounds. (Note: Dewar tanks have a much larger capacity and are a great solution for large batch operations.) Please see additional data on dewars here.

Where can I buy or rent the Co2 Siphon Tanks?

Normally Co2 tanks are not purchased. They can be rented by the day or week, etc. You can still purchase tanks and get them refilled at any local welding supply shop or gas supplier but due to the weight and maintenance, we always recommend that you rent the tanks. Rented tanks with siphon tubes often are painted red on the top of the tank. You can also have the local Co2 supplier deliver to your venue or event. (Note: When contacting your Co2 supplier, always inquire on newer or currently refurbished tanks. However not common, this will help the quality of your Co2 effect and can eliminate blockage due to debris and dirt inside the tank.)

How long will the Co2 tanks last?

This can vary due to following different factors: The length of the hose, the length of your blast and the tank's size. Ambient temperature conditions of your environment, your Resinator itself along with the amount of material loaded also play a role.

Example 1 - With the standard high pressure hose included at 30 seconds per blast and a 50lb Co2 Siphon tank, you can expect an estimated 6 minutes of effect and approximately (12) 30 second shots.

Example 2 - With the standard high pressure hose included at 30 seconds per blast and a 25lb Co2 Siphon tank, you can expect an estimated 3 minutes of effect and approximately (6) 30 second shots.

These are guidelines on average experience. Keep in mind that roughly 10% of the gas remaining in a spent tank will not come out in liquid form. When you can no longer see the gas entering the chamber it is a good indication that there is no longer liquid co2 left to dispense.

What tools do I need to operate and use a Co2 tank?
You will need (1) adjustable wrench or crescent wrench t connect the hose to the Co2 tank. (1) Tie down strap is needed to secure the Co2 tank to any solid or supported structure. Always keep on hand extra nylon washers that go between your Co2 hoses and tank.

How do I know how much Co2 liquid is in a tank?
Currently, there’s no easy way to gauge or monitor the amount of liquid in a Co2 tank. Although, by using a scale and some math, you can determine the amount of true liquid per tank when you receive it.

Example - On a 50lb Co2 Siphon Tank order

Co2 Tank Weight (steel): 135lb estimated (This should be printed on your Co2 Tank labeled as “TW”)

Co2 Liquid Weight: 50lb

Total Weight: 185lb

If you order a 50lbs Co2 tank and it weighs less than the total weight of the 50lb Co2 liquid and the weight of the tank, you should contact your supplier immediately to advise them that you did not receive the correct amount of Co2 Liquid.

Can I use more than one Resinator unit on a Co2 tank?
The simple answer is yes! This would require special or customized fittings to split the Co2 line. Our Co2 units use pressure, also known as PSI, which is built up inside the tank allowing the Co2 liquid to disperse, creating a large plume of smoke. The more units per tank, the quicker Co2 in dispensed – the faster your tank will drain.

Can the Co2 hose be disconnected from the Co2 tank while in use?

No, never try to disconnect the Co2 hose from the Co2 tank while there is pressure in the Co2 line, or if the valve is open on the Co2 tank. (Note: The Resinator Co2 coil comes with a Quick Connect System which will not allow Co2 out once disconnected from the quick release coupler.)

Why won’t my Co2 hose disconnect from my Quick coupler plug?

This may occur in the instance that your Co2 plug fitting is frozen from heavy use, creating an ice block and not allowing the Co2 hose Quick Connect to detach from your drum unit. Just allow the temperature to normalize and then detach when thawed. If you simply can’t wait then a small pair of channel locks can always come in handy to aid in detaching your coil.

What to do if my Co2 Hose was not connected properly before turning on gas?

Never open your Co2 tank valve until your Co2 hose is firmly connected to your Resinator drum.

If your Co2 hose was not attached correctly, the coil end will fly about wildly! In this circumstance you must get out of the way and or release the pressure by immediately turning off the tank valve. Always take care to securely attach the coil to the quick connect port of your Resinator drum before turning gas valve to the on position. Tighten the brass nut connected to the Co2 tank by using your adjustable wrench or crest wrench.

What size hose length will give me the best result?

The length of the Co2 hose does not matter; if a hose is 15ft or 100ft, the pressure from the tank is always the same. Example - If you have a Co2 tank using a 25ft hose and another Co2 tank using a 50ft hose, the pressure from the Co2 tank from the Resinator will be the same. (Note: The longer the Co2 hose affects the length of time it takes to prime the hose. Once all the hoses are primed, the pressure is then built between the tank and the unit. Of course, the longer the Co2 hose, the quicker the tank will empty as it takes more Co2 liquid to prime the line.)

What if standard coil hose included is not long enough?

We understand that sometimes our standard coil hose is just not enough. Extension hoses that attach easily to your quick coupler connection can be obtained generally through the same supplier used to refill your Co2 tanks. Local suppliers can assist in many of the Co2 connectors, couplers and 3-Way Systems you need to create the perfect set up for your situation. Still not sure what best suits your set up? Contact our representatives who can assist you with answering additional questions. info@theoriginalresinator.com

Are there dangers associated with Co2 use?

Co2 extraction is one of the fastest growing sectors on the market right now due to how safe it can be and the applications it can be used in. But, like any pressurized system, there are dangers involved if the product is used incorrectly.


Never point a Co2 nozzle directly towards someone's face or body less than 10ft away. This is a very cold

gas and can hurt someone if it comes in contact with skin for long periods of time.

Never leave your Co2 tanks open and lines primed for extended periods of time if unit is not in use.

Always drain your lines at the end of use to release pressure in the hose.

Always secure Co2 tanks to prevent tanks from falling over.

When Co2 hoses are not attached to tanks, always seal the tanks with the metal caps provided when you

rent or purchase tanks.

Use approved cylinder carts or heavy-duty hand trucks to transport your Co2 tanks.

When transporting Co2 tanks, ALWAYS make sure they are secure and strapped so they cannot move.

The information contained in this document is the property of The Original Resinator, LLC and is proprietary and/or copyright material. This information and this document may not be used without the express authorization of The Original Resinator. Any unauthorized use or disclosure may be unlawful.