How It Works


    Spoiling meat produces moisture, ammonia and nitrogen, which in turn further accelerates the spoilage. RD FRESH absorbs water (H2O), ammonia (NH3) and nitrogen (N).


    Produce emits ethylene gas (C2H4), which accelerates the spoilage of other produce. RD FRESH absorbs this ethylene gas to help slow the rate of spoilage.


    Spoiling fish produces carbon dioxide, hydrogen sulfide and ammonia. RD FRESH absorbs carbon dioxide (CO2), hydrogen sulfide, (H2S) and ammonia (NH3).

    100% Natural Product Composition

    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 & 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.

    Zeolite and the Environment

    Nearly every application of zeolite has been driven by environmental concerns, or plays a significant role in reducing toxic waste and energy consumption. It is the highly porous and consistent matrix of zeolite that provides the absorption qualities. One important factor to determine a natural zeolites' quality is the percentage of a primary mineral within the zeolite matrix - called ‘clinoptilolite'.

    ClinoptiloliteRD Fresh Clinoptilolite

    Clinoptilolite, one of the most useful naturally occurring zeolites, is applied as a chemical sieve, food additive, as well as gas and odor absorber. Clinoptilolite can easily absorb ammonia and other toxic gases from air and water and thus can be used in filters, both for health reasons and odor removal.

    BRZ ZeoliteRD Fresh zeolite

    The zeolite source located in Idaho is the highest grade of naturally-occurring zeolite due to its clinoptilolite content of 95%. In comparison, many other of the world's zeolite mines are in the 30% to 70% range. BRZ zeolite is approved by NASA for its ability to hold soil nutrients for long-term flights in space and it has NSF approval for use as an alternative to traditional water treatment filters.


    Bear River Zeolite Certifications:

    • U.S. Food and Drug Administration (FDA) Registration 17000178052
    • Canadian Animal Feed registration No. 990643
    • Swimming Pools & Spas-ANSI/NSF standard 50
    • Drinking Water Treatment-ANSI/NSF standard 60
    • Drinking Water-ANSI/NSF Standard 61
    • GRAS (generally regarded as safe) under 21 CFR Part 182.2729, 40 CFR Part 180.1001

    GSA ChabaziteRD Fresh chabazite

    Chabazite is the most important member of the 48 minerals in the zeolite group. It is the microcrystallinity of the chabazite that produces a large surface area and pore volume which promotes accelerated ion exchange and absorption rates as well as high permeability. The only known deposit of its size and purity in the world, is located at Bowie, Arizona, U.S.A. As evidenced below, the Bowie, Arizona Chabazite is often the zeolite of choice.

    United States Patent # 6,042,731, titled "Method of removing arsenic species from an aqueous medium using modified zeolite minerals" was issued on March 28, 2000. The zeolite mineral that is the base element in this patent is known as Chabazite. The Chabazite used in this technology is from a deposit located at Bowie, AZ.

    Union Carbide Corporation, Tarrytown, NY) marketed an AW-500 product (natural chabazite-rich tuff from Bowie, AZ) for removing HCl from reformed H2 streams H2O from Cl2, and CO2 from stack gas emissions.

    NRG Corporation (Los Angeles, CA;) used a pressure-swing adsorption process with Bowie chabazite to remove polar H2O, H2S, and CO2 from low-BTU natural gas and developed a zeolite-adsorption process for purifying methane produced by decaying garbage in a Los Angeles landfill.

    Why do we include two zeolites, Clinoptilolite and Chabazite?

    Because each absorbs different chemicals at different rates. Excerpted from... Sabeha Kesraoui Ouki, Department of Civil Engineering, University of Surrey, Surrey U.K. "Two natural zeolites, clinoptilolite and chabazite, have been evaluated with respect to their selectivity and removal performance for the treatment of effluents... Clinoptilolite and Chabazite exhibited different selectivity profiles...

    Simply put, using both minerals yields far better results than either one. And using only the best zeolites available makes a huge difference. But still more can be done to keep food fresher, longer!

    Activated Coconut Shell CarbonRD Fresh potassium permanganate

    Ethylene is a natural plant hormone produced by metabolism in most fruit and vegetables. It initiates and accelerates the spoiling of fruit vegetables. To prevent degradation of produce due to exposure to ethylene gas, ethylene gas absorbers have been developed. One of the simplest ways to remove ethylene gas is to absorb it with natural coconut shell carbon which contains the most surface area per unit volume of any carbon.


    MontmorilloniteRD Fresh montmorillonite

    Montmorillonite absorbs water due the interlayer molecular spaces. Montmorillonite is so absorbent that it is used as a non-explosive agent for splitting rock in natural stone quarries or for the demolition of concrete structures where the use of explosive charges is unacceptable.

    And Montmorillonite is safe. Montmorillonite has been used in cosmetics and has reputed therapeutic effects. Over 200 cultures have used it for medicinal purposes including the Ancient Egyptians, and natives of Mexico, South America and North America. Montmorillonite is also used in animal feeds as an anti-caking agent.