
RD FRESH = REFRIGERATION DEHUMIDIFICATION
The Future of Refrigeration
& Food Preservation
Protect Your Perishable Assets up to 50% Longer,Extend Your Equipment Life Expectancy,Reduce Your Environmental Impact.
Trusted by food service operators for over 18 years · SWaM certified
- MOISTURE IS THE COOLER KILLER
- 100% PASSIVE · ZERO ELECTRICITY
- PAYS FOR ITSELF
- ALL-NATURAL MINERAL MIX
- 18 YEARS PROVEN
THE PROBLEM
MOISTURE
The Cooler Killer
Unchecked humidity is destroying your walk-in cooler — and your bottom line.
Every kitchen is hot. Every cooler must stay cold. Every time the door opens, hot air hits cold air — and moisture forms instantly. It never stops. Here’s what it’s doing right now:

$4,000+
Equipment strain & failures
Condensation freezes on evaporator coils and forces your compressor into overdrive until it dies. RD FRESH absorbs the moisture that causes it — saving you thousands.

24/7
Skyrocketing energy bills
A frosted coil acts as an insulator. To hold temperature, your cooler runs longer and harder, around the clock — spiking monthly utility costs.

4-10%
Food spoilage & waste
High humidity breeds bacteria, mold, and airborne gases that rot perishables early. Every $1 spent on RD FRESH returns roughly $8 in savings.

Safety
Workplace hazards
Condensation puddles on floors, creating dangerous slip-and-fall hazards for your staff — a real safety and liability exposure.
THE SOLUTION
We ABSORB the
Cooler Killer.
(RD FRESH ABSORBS MOISTURE) RD FRESH is a mineral-based system built specifically to combat moisture. NO chemicals. NO toxic residue. NO wires, NO plugs, NO machines.

THE MINERAL POUCH + CEILING-MOUNTED TRAY =THE WHOLE SYSTEM. NO WIRES. NO PLUGS.
01
100% natural dehumidification
An all-natural mineral mix that continuously balances humidity — and goes recyclable back to earth.
02
Zero electricity required
Fully passive operation. It works 24/7 without adding a cent to your electric bill.
03
Absorbs ethylene gas
Beyond moisture, it filters out ethylene — the natural ripening agent that spoils produce prematurely.
04
15-minute install
Fits any walk-in cooler, freezer, or refrigerated space — with zero operational downtime.
SAVE YOUR EQUIPMENT. SAVE YOUR MONEY.
The Solution to Your Problems
THE BENEFITS OF USING RDFRESH.

Food
- Extends shelf life up to 50%
- Reduces humidity and odors
- Slows bacteria growth
- Prevents cross-contamination

Equipment
- Drops temperature 3-5 degrees
- Up to 50% fewer defrost cycles
- Coolers run 20-30% more efficiently
- Extends compressor life

Environment
- Less food to landfill
- Lower methane emissions
- Reduced energy and water use
- 100% recyclable materials
THE SCIENCE
Our Claims are Scientifically Irrefutable
"Science you can see."
RD FRESH doesn’t just "soak up" smells; it acts as a molecular filter for your walk-in cooler. The secret lies in our proprietary blend of zeolites — natural volcanic minerals with a unique, honeycomb-like crystalline structure that traps spoilage molecules before they reach your food.
- FDA-compliant Tyvek® bags
- OSHA-rated non-toxic
- 100% recyclable

Meat
Moisture accelerates the spoilage of meat. Spoiling meat produces ammonia and nitrogen, which in turn further accelerate the spoilage.
RD FRESH ABSORBSH₂ONH₃N
Fish
Spoiling fish produces carbon dioxide, hydrogen sulfide and ammonia — the gases behind "fishy" odor and flavor transfer.
RD FRESH ABSORBSCO₂H₂SNH₃
Fruits & Vegetables
Fruits and vegetables emit ethylene gas, which accelerates the ripening and spoilage of other produce. The simplest way to remove ethylene is to absorb it.
RD FRESH ABSORBSETHYLENE (C₂H₄)
16×
Less ethylene gas
US Army field test: 1.8 ppm with zeolite absorbers vs. 29 ppm without, after three weeks. Overall ROI: 480%.
~50%
Longer shelf life
Independent EMSL Analytical study on ground beef: 48% lower bacteria growth from baseline over four days with RD FRESH.
25–50%
Lower cooling loads
The Department of Energy reports desiccants (zeolites) can cut cooling loads and peak demand by 25–50%. Dry air is easier to cool.
WHITE PAPERS
Read the data yourself.
- PDF · 01
Technical Information
Full product specification: minerals, bags, placement, and service cycle.
Open document → - PDF · 02
Performance Validation
Third-party validation of humidity, temperature, and energy claims.
Open document → - PDF · 03
Beef Report
EMSL Analytical study: bacteria growth on ground beef, with and without RD FRESH.
Open document → - PDF · 04
Berry Test
Visual and microbial impact analysis on high-perishability produce.
Open document →
SEE IT IN ACTION
How RD FRESH works.
Corporate Sustainability
THE IMPACT OF FOOD WASTE ON OUR PLANET'S FUTURE
66M
Tons of food wasted yearly in the US
Food is now the #1 material in American landfills — 24% of everything thrown away.
80×
Methane potency vs. CO₂
Rotting food generates methane — 80 times more potent than carbon dioxide over 20 years.
17%
Of surplus food comes from food service
That's money going straight into the trash. Stop the waste before it happens.
THE 18-YEAR SECRET
Stop tracking food waste.
Start preventing it.
The industry sells you expensive software to measure what you throw away. But tracking waste doesn’t stop food from rotting — it just measures your losses. RD FRESH physically alters the environment inside your cooler to halt spoilage before it starts.
Jan 2008
FIRST COMMERCIAL CLIENT
216+
MONTHLY CYCLES — STILL ACTIVE
Pays for itself
NEVER A COST — AN ROI
RETURN ON INVESTMENT
RD FRESH:
Self-Funding.
MOST CLIENTS SEE THE SYSTEM PAY FOR ITSELF WITHIN THE FIRST WEEK OF INSTALLATION.

PURCHASING POWER
Order full cases rather than half cases due to extended shelf life, saving on case break prices immediately.

REDUCED DELIVERIES
Potential to reduce delivery frequency by one delivery per week, drastically lowering logistics fees.

LABOR SAVINGS
Reduced man-hours spent receiving, rotating, trimming, and sorting spoiled product in your coolers.
SYSTEM CONFIGURATOR
Size your cooler in seconds.
Atmosphere-control planning based on interior volume, airflow hardware, and what you store.
STEP 01 — INTERIOR DIMENSIONS
STEP 02 — MECHANICAL HARDWARE
STEP 03 — INVENTORY PROFILE
All-in-One: balanced coverage for mixed-inventory coolers storing a bit of everything.
RECOMMENDED SYSTEM
v2.104
RD FRESH units · 960 cu. ft. interior
- Main entrance (door)01
- Fans02
- Equalized coverage01
BAG CONFIGURATION
All In One Cooler
Moisture, Odor, Produce · auto-selected from your inventory profile

FOR HVAC PROS & DISTRIBUTORS
The easiest add-on your service call will ever carry.
You already service the equipment moisture destroys. RD FRESH keeps coils frost-free, cuts defrost cycles up to 50%, and lowers head pressure — fewer emergency calls, happier customers, and recurring revenue on every cooler you maintain.
Already a distributor? Sign in to the portal
- 01
Your customers already trust you
When the tech who services the cooler recommends it, operators listen. No cold calls.
- 02
Recurring monthly service
Mineral panels swap in minutes on a schedule — a natural fit for preventive maintenance contracts.
- 03
Protects the equipment you install
Less moisture means longer compressor life and fewer warranty headaches on your installs.

RD FRESH APP
Manage your atmosphere.
Track replacement schedules, monitor savings, and manage subscriptions from one control center.
- Smart replenish reminders
- Live savings tracking
- HD installation guides
- Quick supply orders
COMMON QUESTIONS
Everything you need to know.
Zeolites were formed from ancient volcanic ash flows settling in seas and lakes. This unique group of naturally-occurring minerals is often referred to as "molecular sieves". Zeolite is the world’s only mineral with a naturally-occurring negative charge. Zeolites simply lock and hold many positive ions, absorbing a multitude of environmental contaminants such as sodium, potassium, barium and calcium, and positively charged groups such as water and ammonia.
Our 100% all natural mineral product is completely safe in any environment.
- Component minerals are used in aqua filters, agriculture and even make-up.
- OSHA has determined that zeolite products are: Stable, Non-Toxic, Non Corrosive, Non Flammable, Not Caustic and Non Irritating as per Federal Hazardous Substances Act (15 CFR 1500).
- RD FRESH minerals are all 100% recyclable to the earth.
RD FRESH minerals are enclosed in DuPont Tyvek® bags for super strength and permeability.
- DuPont Tyvek® is made from 100% high-density polyethylene to protect package integrity.
- DuPont Tyvek® bags meet the U.S. FDA requirements for use in direct contact with food.
- DuPont Tyvek® bags are considered by OSHA non-hazardous under Standard (29 CFR 1910.1200).
- DuPont Tyvek® bags can be recycled directly to DuPont, truly making RD FRESH a 100% recyclable product with a purely positive impact to our planet.
- Moisture accelerates the spoilage of meat. Meat emits ammonia and nitrogen, which in turn further accelerates the spoilage. RD FRESH absorbs water (H₂O), ammonia (NH₃) and nitrogen (N).
- Fish emits carbon dioxide, hydrogen sulfide and ammonia. RD FRESH absorbs carbon dioxide (CO₂), hydrogen sulfide (H₂S) and ammonia (NH₃).
- Produce emits ethylene gas, which accelerates the ripening and spoilage of other produce. RD FRESH absorbs this ethylene gas.
RD Fresh is a 100% Natural Refrigeration Dehumidifier that dramatically improves the shelf life of food by absorbing moisture and other contaminates that contribute to spoilage. RD Fresh uses a proprietary mix of zeolites with a unique 3-dimensional structure similar to a honeycomb. Moisture and gas molecules move freely into this "honeycomb" and are then "trapped" there rather than on the surface of the food, ensuring that you are always serving a fresher, healthier, and safer food product.
Some use panels that are attached directly to the ceiling, not suspended from the ceiling like RD FRESH. Limited air flow means limited effectiveness. Others:
- Use a single mineral which they do not even identify. RD FRESH uses a combination of 4 different minerals, clearly identified, for a multi-faceted solution for specific applications.
- Use cotton or burlap bags to encase their minerals. RD FRESH uses DuPont Tyvek®, which is FDA approved for direct contact with food.
- Use "minerals" which they call Saugin and/or Guerite — a simple check of any mineral list will reveal that no such minerals exist.
- Cannot supply MSDS sheets. RD FRESH MSDS sheets are clearly displayed and are even printable directly from our website.
- Use a "hybrid" of zeolite and potassium permanganate.
Potassium permanganate is on a number of hazard lists, such as New Jersey and Pennsylvania, and even the EPA issues serious warnings about the substance. It is on the Hazardous Substance List because it is cited by DOT and EPA: "Potassium permanganate is toxic and irritating to skin and mucous membranes, may cause health problems such as chemical jaundice and drop in blood pressure and can be fatal if swallowed."
RD FRESH is a perfect product for our times: a 100% natural "GREEN" mineral mix.
Office of the Chief Economist, United States Department of Agriculture. In the United States, food waste is estimated at between 30-40 percent of the food supply. This estimate, based on estimates from USDA’s Economic Research Service of 31 percent food loss at the retail and consumer levels, corresponded to approximately 133 billion pounds and $161 billion worth of food in 2010. This amount of waste has far-reaching impacts on food security, resource conservation and climate change:
- Wholesome food that could have helped feed families in need is sent to landfills.
- The land, water, labor, energy and other inputs used in producing, processing, transporting, preparing, storing, and disposing of discarded food are pulled away from uses that may have been more beneficial to society.
- Food waste, which is the single largest component going into municipal landfills, quickly generates methane, helping to make landfills the third largest source of methane in the United States (20x worse than CO₂).
Food spoilage is due to bacteria proliferation in the food, and the biggest cause of bacteria proliferation according to the FDA is simply moisture.
U.S. Army Research, Development and Engineering Center, Food Engineering Directorate: "It is clear from these studies that ethylene absorber filters … should be used in all fruit and vegetable storage areas in order to ensure maximum shelf life at an affordable cost."
U.S. Department of Energy: "Desiccants can work in concert with chillers … by allowing chillers to cool low-moisture … In some applications, desiccants can cut cooling loads and peak demand by as much as 50 percent."
British Zeolite Association: "Zeolites contribute to a cleaner, safer environment in a great number of ways. In fact nearly every application of zeolites has been driven by environmental concerns, or plays a significant role in reducing waste and energy consumption."
Our products absorb up to 55% of their weight in humidity, and:
- Increase the shelf life of food up to 50%
- Reduce the transfer of food odors
- Reduce the spread of bacteria and cross contamination
- Reduce refrigeration temperatures 3-5 degrees
- Reduce refrigeration cycles, extending the life of the compressor
- Reduce refrigeration costs up to 15%
Plus it saves you money and helps save our environment.
