FAQ
Cold Exposure Therapy
A cold plunge tub actively chills and maintains water temperature with filtration and sanitation, unlike traditional ice baths that rely on ice.
In a BlueCube cold plunge, water is filtered by a 20 micron, 35 ft. spa filter cartridge.
Ozone is the oxidizer, killing organic compounds in the water. This ensure the water doesn't get stale or experience a build up of bacteria.
Cold immersion therapy works by stressing your body and causing beneficial adaptation, just like exercise.
Cold plunging, sauna, exercise, and intermittent fasting are all related and called hormetic stresses.
The goal is not to break down the body. The goal is to leverage low-dose, intermittent stressors that challenge the body just enough to trigger adaptive, protective responses, making you stronger, more resilient, and healthier.
*Below are some health benefits that peer reviewed science is beginning to reveal:
• Increase Your Metabolism
• Boost Your Immune System
• Improve Cardiovascular Health
• Mitigate Alzheimer's and Dementia
• Increase Testosterone
• Alleviate Arthritis
• Stabilize blood sugar (increase insulin sensitivity)
• Blast Through Anxiety
• Address Mental Health
• Tumor Suppressant
• Contributes to Longevity
• Speed Recovery Times
• Reduce Inflammation
• Eliminate Depression
• Leverage feel good hormones
• Makes skin and hair look radiant
* Disclaimer: These claims are not approved by the FDA. You are responsible for your own research.
Yes, if done after weight lifting, cold plunging does interfere with muscle growth, or hypertrophy.
However, if done pre-workout, or before you weight lift, it can enhance your power and stamina. Many experienced cold plungers have shared this experience.
As with any health protocol, there is nuance. When it comes to professional athletes who are constantly overexerting themselves and experience inflammation, it is on the individual to use cold exposure therapy accordingly.
Yes, cold plunging can boost both your immune system and metabolism.
When it comes to your immune system, the cold shock awakens your cells to be more vigilant and engage in self-repair.
However, if you are already sick, the stress from a cold plunge can be too taxing on the body. It is recommended to fully recover, then reengage in cold plunging. When you are already healthy, engaging in cold plunging can help prevent common colds.
Here is a scientific article on the effect of cold showers on reported sick days:
https://pmc.ncbi.nlm.nih.gov/articles/PMC5025014/
When it comes to boosting your metabolism, cold exposure causes the body to work aggressively to maintain stable body temperature. The side effect is purging of blood sugar levels and browning of fat. It is a lever to get into ketosis. If you combine cold exposure with exercise and the other hormetic stresses, you are teaching your body to go after fat stores. Routinely cold plunging can train your metabolism to be more flexible in switching from glucose to fatty acids for energy production.
Contrast therapy alternates heat exposure, such as sauna use, with cold plunging.
The typical contrast therapy routine is 15 to 20 minutes in a sauna, followed by a 2-4 minute cold plunge, for three rounds.
It is recommended for sauna temperatures to be above 180°F, which is in line with the Finish studies on sauna use.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6262976/
For the cold plunge temperature, that is based on individual preference and tolerance. For beginners we recommend starting your contrast journey at 50°F +. More experienced users tend to go low 40°s to high 30°s F.
You will feel immediate benefits from your first cold plunge. Between 37°F to 45°F your nervous system will completely reset within 20-60 seconds (disruption of the default mode network, and ego death).
Mental clarity, focus, energy, and motivation are immediate. In addition, you will experience a powerful anti-inflammatory response.
The long term benefits include metabolic flexibility, anti-fragility (the ability to handle all stresses better), and better sleep. You will also be addressing underlying causes of chronic disease (as with exercise, sauna, and intermittent fasting).
This depends on your cold tolerance. If you are just starting out, you should be very careful not to overdue your session. If it takes you over an hour to warm back up, that is a sign that you over-stressed your body. Use a warm shower, heated room and clothing, exercise to warm back up if you are experiencing this.
As you gain more experience, 2-4 minutes is typically all that is required across most temperatures to extract all the benefits without diminishing returns.
This is entirely dependent on your goals, how active you are, and your cold tolerance.
Some users report benefits from cold plunging every morning first thing. Others engage in the protocol 2-3 times per week. Some advanced users and extreme athletes cold plunge multiple times per day to address inflammation (do not start off doing this).
In either case, it is important that you eat clean foods and get all the micronutrients you need to rebuild, just as with exercise. Cold exposure is a stress on your body, and your body does repair itself. Ensuring that you adequate magnesium and other micronutrients is necessary for this rebuilding process.
Prior to entering the cold plunge, you can engage in Wim Hof breathing. DO NOT engage in Wim Hof breathing (hyperventilation when you enter the cold plunge).
Upon entering a cold plunge tub, it is recommended that you exhale.
While you are in the cold plunge, box breathing (4 seconds inhaling, hold for 4 seconds, 4 seconds exhaling, hold for 4 seconds) and / or the physiological sigh (two quick inhales followed by a long extended exhale) is recommended.
The physiological sigh, as prescribed by Dr. Andrew Huberman, helps to dampen the adrenaline spikes and fight or flight response while in the cold plunge.
Cold plunging is not suitable for everyone. Medical guidance is advised for certain conditions, include heart conditions.
It is advised that children be under supervision while cold plunging.
If you have any doubt, confirm with your doctor.
If you do not get swimmers ear, dunking your head is advised to stimulate the diving response (parasympathetic nervous system). It also turns on your fight or flight fully, causing your body to heat up aggressively.
Cold Plunge Tub Product Questions
BlueCube comes with a full coverage 3 year warranty that covers shipping, labor, and components.
15 year warranty on tub and frame.
Temperature control, flow rate, hydro-agitation control (River Mode), insulation, filtration, sanitation, durability, materials, and warranty are key factors to consider.
In addition, live customer support.
For residential use, we recommend changing the water every 3-4 weeks depending on how many daily plunges your household engages in.
For commercial, we recommend changing the water after ~30-50 cold plunges. Water clarity is a key indicator of when to change.
Other companies will claim you don't need to change the water for 6 months...
Even with chlorine, it is recommended to not follow this advice. Changing the water frequently ensures your cold plunge will last a long time.
In addition, it is recommended to run the cold plunge with biomaintain or spa cleaner to ensure that all plumbing and components are degunked. Fats and lipids are hydrophobic, and in cold water they coagulate. Running your cold plunge tub with appropriate cleaners monthly for residential and weekly for commercial will lead to longevity and optimal performance.
Water volume depends on which BlueCube you choose. Our cold plunge tubs hold between 80-100 gallons in our C1, C2, and C3.
BlueCubes can be installed both indoor or outdoors. Our frames are coated with Line-X® (truck bed lining) and are weatherproof.
A level surface with proper electrical access is recommended for indoor or outdoor installation.
Per NEC codes on cold plunge tubs, a 110/120 20 amp dedicated circuit minimum is required to install your BlueCube in both residential and commercial applications.
Some cold plunge companies say they are plug and play into standard 15 amp outlets. This is not to NEC code.
You do not need professional installation of your BlueCube cold plunge.
BlueCubes come fully assembled, dropped off curbside in a palletized crate.
Screw gun, four movers, and moving dollies are recommended.
BlueCubes can fit through narrow doors and hallways by being tilted on their sides (29.5" in height).
They can also be tilted vertically if necessary for tight sweeps and turns.
After placing the cold plunge tub into position, do not turn on the unit for at least 2 hours (or however long it was tilted for) to allow the chilling motor to reset (just like a refrigerator).
Tubs are constructed from 316 14 gauge stainless steel that are fully foam insulated inside the cabinet. We also provide American made fiberglass and hemp based tub materials. Call us for details.
Stainless steel is a 100 year product that is easy to clean. Stainless steel is highly resistant to mold and bacteria because of its smooth, non-porous surface prevents microbes from growing, attaching, and harboring, making it a top choice for hygienic environments like kitchens and hospitals, though proper cleaning is still essential to remove debris and spores.
BlueCube focuses on build quality, commercial-grade components, and serviceability.
BlueCube is the only cold plunge that provides the full weight rack of cold exposure therapy. You can titrate across temperatures and three levels of hydro-agitation (River Mode). You will never outgrow a BlueCube. It will give you the proper cold dose no matter how high you develop your tolerance.
We build our frames, tubs, and fully plumb our cold plunge tubs in-house.
We provide live video tech support.
For elite performers like Joe Rogan, Jocko Willink, Jillian Michaels, the Dodgers, TJ Dillashaw, and hundreds of commercial centers across the country who value durability and performance, we are their answer.
BlueCube is booked out months in advance. Given the nature of our builds, handcrafted and built in America, lead times are subject to change. We run limited batches on a monthly basis. Call sales for booking your BlueCube build.
Curbside shipping is included in MSRP for the continental US (48 states). Shipping to Hawaii, Alaska, American territories and internationally is a pass through expense to the customer.
For Product Specific Questions, Please Navigate to Our Product Pages Below.
BlueCube cold plunge tubs
Crafted for excellence—BlueCube™ Cold Plunge Tubs are more than just a wellness engine. Built with precision engineering, American-made craftsmanship, designed for both home and commercial spaces, each tub embodies precision, power, and presence.
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