The Importance of Carb Caps: What do they do?

Posted November 21 2014

Titanium Carb Caps: What Are They and What Are Their Function

The Carb Cap, which hit the vendors in July 2013, is a tool that helps completely vaporize concentrates at extremely low temperatures. With low-temperature vaporization, the concentrate is smoother and the vapor is more flavorful. Thus, it produces a better vaporizing experience.

When It Was First Introduced: Carb Cap Is Met With Criticism But Soon Realized For Its Worth

When the Carb Cap was introduced to the world, many people were skeptical about it, stating it didn’t have any real value and was just a fashion style. Although people initially dismissed it, it’s the Carb Cap’s function was quickly discovered, and since that time, has been picked up and produced by various manufacturers. It can now be found in all kinds of materials like titanium. Therefore, it didn’t take long before domeless nail users made Carb Cap, like the Universal Titanium Carb Cap, an essential part of the household.

Carb Cap: How Does It Work

Now, you may be wondering how does a Carb Cap work. There are many theories as to how the Carb Cap works. One such theory is this: when the concentrate is on the nail, there are a number of forces at work. The hot nail’s energy causes the concentrates’s vapor pressure to rise, the concentrate is pushed back by the atmospheric pressure, the vortex is caused by the air flow, and gravity cause the puddle to pull down onto the nail.

If there is no Universal Titanium Carb Cap, there is an open system for the concentrate to vaporize in. Thus, it must rely on the heat of the nail dish to vaporize under the atmospheric pressure. Some open-system examples are:

  • Club bangers
  • Domeless nails
  • Ti pads/curves

With the use of an open-system, it demands extremely high temperatures that go beyond the smoke/vaporizing point to ensure there is a little chance for product loss and a total evaporation of a large quantity of concentrate.

Yes, this is a working conventional method, but there’s something wrong with it: it doesn’t give the best flavor or vapor quality because the front part of the concentrate that goes into the dish is subjected to extremely hot temperatures than the remainder of the concentrate. Therefore, this vaporization method ends up having a mixed flavor that leaves the taste of concentrate’s natural flavor as well as the front part that was burned to get the total vaporization.

However, the open-system is closed by the Carb Cap, which changes the forces working.

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2 Ways To Ensure You Have A Decent Carb Cap

1 – It Should Suck

When both the Carb Cap and nail make contact, it produces a chamber that lets the concentrate evaporate. Without that chamber, the intake of air is limited to just one hole, which sits atop the cap. This hole is going to have a significantly smaller diameter than the domeless nail’s hole. Due to this difference, the hole diameter produces a suction because the bigger diameter hole needs more air per cubic volume than the smaller hole can give it.

The produced suction decreases the chamber’s interior pressure to under normal atmospheric pressure. And, when this happens, the decrease in pressure drops the vaporizing point of the concentrate, ensuring for a total evaporation/vaporization at temperatures much less than the normal smoke/vaporizing points.

2 – It Should Blow

One may think that the sole purpose of the air-intake hole is to allow for constant air flow. It’s not just all about that, though it is necessary. Rather, the air flowing helps to lead in the reduced temperature for evaporation/vaporization. The air that comes into the chamber helps to produce a vortex around the chamber’s center column.

According to Wikipedia’s “Pressure in a Vortex”, the vortex’s fluid motion causes a dynamic pressure (along with hydrostatic pressure) that is lowermost of the core region, nearest to the axis, and rises as it moves away, all based on the Bernoulli Principle.

Simply put: the vortex decreases the chamber’s pressure even more, while cooling the nail, concentrate and increasing vapor so that there is a smoother vapor quality.

Gravity will pull the puddle downwards and the vortex has a descending, centrifugal force, which results in the concentrate also being pushed downwards in a circular direction. The concentrate’s surface will have a shape that’s vertical to both the gravity’s force and the centrifugal force. Both of these actions will produce a rise in molecular collision the concentrate has with the domeless titanium nail.

And, with the rise in collisions coinciding with the decrease in air pressure from the partial vacuum and the vortex’s continued pressure decline, there is a development in optimum chamber for enabling efficient evaporation/vaporization at temperatures that are much less than the typically-experienced smoke/vaporizing points.



Universal Titanium Carb Cap with threaded handle from