Super Charging Soil Biology

 Persist biochar and paf liquid enable microorganisms to Grow, colonize, and thrive in soil.

Third-party trial results

Strawberry (California)

Persist™ PAF Liquid and Biochar provided a 14% yield increase in marketable strawberries per acre.

* Holden Research and Consulting, Fall 2022

Soybean (Iowa)

A blend of Persist™ PAF liquid and biochar tea produced 7% more soybean plants per acre and a 4% increase in average plant height.

* SynTech Research Group, Summer 2023

Pepper (California)

15% increase in number of peppers produced per acre and 13% increase in average weight with Persist™ PAF and Biochar.

* Holden Research and Consulting, Fall 2023

Broccoli (California)

Persist™ PAF foliar treatments resulted in a 61% increase in total plant weight in nursery trials.

* Holden Research and Consulting, Spring 2023

Tomato (Hawaii)

In a grower trial, Persist™ Biochar delivered a 15% yield increase with 40% water savings.

* Ige Group, Fall 2021

Celery (California)

Persist™ PAF produced 72% greater new root growth and a 31% increase in plant weight in nursery trial.

* Holden Research and Consulting, Winter 2023

Hay-Water Savings (Colorado)

Soils amended with Persist Biochar created 37-51% greater moisture retention as well as large increases in protein percentage, Relative Feed Quality (RFQ), and Relative Feed Value (RFV) of hay.

* Lobato Farms-Colorado State Univ, Summer 2023

A large and diverse population of microorganisms is essential for nutrient cycling, pest and pathogen control, nitrogen fixation, decomposition of organic matter, and many other vital functions of productive soils.

Persist Premium Biochar

One pound of ultra-porous Persist™ biochar has a surface area of over 25 football fields. Water adheres to these surfaces to retain moisture in soil up to six times longer. The microscopic pores also serve as a habitat for microbes, creating a microbe mega-factory in your soil.

Persist PAF Bio-liquid

Persist™ PAF is a unique liquid blend of organic acids, phenols, and natural compounds. While biochar provides shelter for microbes, PAF provides the food. Recent crop trials, including strawberry, pepper, and soybean, show significant improvements in nutrient uptake and yield.

Independently Verified to the Highest Quality Standards

OMRI Listed® for use in certified organic operations under the USDA National Organic Program

Certified by the USDA as an all-natural, 100% biobased product (BioPreferred® program)

Meets the stringent quality standards established by the International Biochar Initiative

Certified carbon negative by Puro.Earth, the world’s leading carbon crediting program

Shelter for soil microbes.

Just like a coral reef harbors a wide variety of sea life, the microscopic pores of biochar provide a home for an abundance of microorganisms, which are critical for long-term soil and plant health.

Persist™ biochar increases the diversity and populations of beneficial microorganisms in the soil, helping to reduce fertilizer inputs and rebuild unproductive soils.


Food for soil microbes.

Persist™ PAF bio-liquid contains readily degradable organic acids and compounds that microbes use for metabolism, enhancing both the diversity and population of beneficial microorganisms in the soil.

Organic acids found in PAF, including acetic, malic, and succinic acid, have been shown to solubilize and mobilize minerals such as Fe, P, K, and Mg. These organic acids form complexes with minerals in the soil to release previously unavailable nutrients to the plant.

The Persist™ Biochar Difference


Persist biochar is manufactured in a high-temperature gasification process that maximizes the removal of volatile organic compounds (VOCs) from the biomass. This proprietary process also yields a biochar with greater than 90% fixed carbon content, which is significantly higher than most other brands of biochar. Persist has low ash content, consistent particle size distribution, and is made from 100% California-grown waste pistachio shells, which would otherwise go to the landfill.


Persist’s proprietary high-temperature production process also creates an extremely porous biochar with an intricate network of microscopic pores, cavities, and channels. The result is a massive “surface area-to-volume” ratio, which maximizes the water holding capacity and nutrient binding capabilities. One ounce of Persist™ in fact has a surface area equal to 1-1/2 football fields. Persist’s surface area of 200-300 m2/g compares to other biochar at <20 m2/g.


Biochar is an effective method for capturing carbon that would otherwise enter the atmosphere. But how much carbon is captured and for how long is not the same for all biochar. Persist is over 90% fixed carbon, meaning that more carbon is captured per pound compared to others. Additionally, if the oxygen-to-carbon (O:C) ratio of biochar is less than 0.2, then the half-life is greater than 1,000 years.  With an O:C ratio of 0.05, Persist provides significantly longer sequestration.

Precise Particle Size Control

Persist biochar, made from pistachio shells, has exceptional hardness which enables precision processing into specific particle sizes. Persist offers several standard particle sizes and can match custom requirements for particles as small as 44 microns (about the size of household dust).

Whole Shell

220 lb / cubic yard
(10% moisture)

Large Granular

450 lb / cubic yard
(25% moisture)


500 lb / cubic yard
(25% moisture)

Fine Grain

625 lb / cubic yard
(25% moisture)


750 lb / cubic yard
(25% moisture)

NEW Micronized biochar for fertigation, drip irrigation, and foliar spray systems.

  • Carefully screened particles less than 75 microns (0.075 mm) designed for liquid suspension and application.
  • Enhances dispersibility of biochar in soil for more precise nutrient delivery while reducing loss from volatilization.
  • Micronized particles further improve water retention, nutrient availability, and microbial activity in soils.

 Full Truckload Pricing Available

Wood Vinegar
VGrid Trailer

Our mission is to reverse climate change.

Persist products are made by VGrid, an innovative clean energy company producing sustainable electricity from agricultural and forestry waste. In addition to reducing our reliance on fossil fuels and decreasing landfill waste, every ton of Persist biochar sequestered in soil will net remove about three equivalent tons of CO2 from the atmosphere.
Persist by VGrid
+1 (805) 482-9040
513 Calle San Pablo, Camarillo, CA 93012


Persist™ all-natural biochar and PAF liquid plant enhancer are manufactured by VGrid Energy Systems, a California-based clean energy producer