OTA - The Organic Center

The Benefits of Organic Spices, Herbs and Teas—An Upcoming Report from The Organic Center

stephanie@llmpubs.com — Fri, 09 Sep 2022 17:41:02 +0000

September 9, 2022

Spices and aromatic dried herbs impart ample flavor when added to foods. Akin to spices, brewed tea leaves center many a daily ritual promoting mental stimulation or relaxation. Together, spices, herbs, and teas find use because of their desired flavors and medicinal and nutritional benefits, and their consumption is growing. Where do organic standards and production methods reveal noteworthy benefits?

This fall, The Organic Center will release a report showcasing how organic spices, herbs, and teas benefit people and the planet. Specifically, the Center will present science that shows: 1) quality benefits to consumers, 2) benefits for worker health and safety, 3) socioeconomic benefits, and 4) environmental benefits related to organic production and processing.

The report will also spotlight case studies from organic companies that are working above and beyond the organic standards to enhance environmental or socioeconomic outcomes along their supply chains. In conjunction with this report, The Organic Center will run a social media campaign featuring recipes from organic spice, herb, and tea companies to highlight their products.

Below is some of the content that will be expanded in the upcoming full report.

Organic Standards: What Does Organic Mean When It Comes to Spices and Teas?

Dried spices, herbs, and teas are subject to organic standards that apply to both farming and processing. This means that wherever these crops are grown, agricultural practices must maintain or improve the natural resources on and around the farm, and this must occur without the use of synthetic fertilizers and most chemical-based pesticides. This improves biodiversity and soil health, and reduces human health risks, greenhouse gases, and energy consumption associated with the manufacturing of these chemicals.

In non-organic processing, irradiation and ethylene oxide chemicals are allowed to manage food safety risks associated with the storage and transportation of spices, herbs, and teas. However, both of these practices, which have been linked to negative health outcomes, are prohibited in organic processing. Organic processors must use other effective and allowed practices, such as steam sterilization, to manage food safety risks.

Reducing chemical use during production and processing is especially important for dried botanical products, as the dehydration process concentrates any existing chemical residues on the fresh product. And the brewing process of teas can influence the transfer of residues by increasing the infusion of water-soluble pesticides. In short, organic standards help protect consumers, farming communities, and the environment.

Quality Benefits for Consumers

In addition to averting chemicals in the final products, organic production of spices, herbs, and teas allows consumers to avoid risk of dietary exposure to harmful chemicals and offers nutritional benefits like reduced heavy metals and more antioxidants in final products.

Several studies from various countries have tested for and detected pesticide residues in non-organic spice and tea products. Detected pesticides range from organophosphates to pyrethroid insecticides, fungicides, and herbicides. Detected levels range from trace to exceeding maximum allowances. Because most of these chemicals are prohibited in organic production, consumers can reduce their risk of dietary exposure when they consume organic products.

But the benefits of organic don’t stop there. Science also shows that organic spices, herbs, and teas can have higher concentrations of beneficial bioactive substances like vitamin C and antioxidants.

Benefits for Worker Health and Safety

Consumers should know that the benefits of organic spices, herbs, and teas go beyond quality when considering the numerous individuals who are involved in their production—from growing to processing—and where there may be less regulation of pesticides and their use. Research shows that occupational exposure to harmful pesticides is prevalent in conventional production of spices, herbs, and teas, and that organic production reduces this exposure.

“There’s a history of intense pesticides used in tea, which led to skin diseases and growths,” says Raj Vable from Young Mountain Tea about tea estates in India. “They have pictures in the processing facilities warning tea farmers to use organic, otherwise this is what happens.”

In the southern state of Kerala, where spices have been produced for centuries, a survey identified that all 300 pesticide applicators reported at least one symptom of acute pesticide poisoning (APP) from 30 cardamom plantations in the Idukki district region. APP is a major occupational hazard, especially for women, where pesticide use in these plantations is some of the highest in the world.

Organic production promotes alternative measures for pest control and when necessary, allows for the use of less-toxic pesticides, reducing the potential risk for harm to those who apply them.

Socioeconomic Benefits

With deep colonial roots, oppressive systems currently exist in many historical spice and tea producing regions today. For instance, business models from the colonial British era are still present in Indian tea estates: private entities own the land and facilities where the tea is grown and processed, and where tea farmers and workers live, controlling their choices for housing, food and healthcare, and subsidies for their children’s education.

Multiple studies show that producing spices and teas for the organic supply chain offers many social and economic benefits that help combat these oppressive systems. Organic production of spices, herbs, and teas can improve livelihood, opportunities, and social benefits for resource-poor, small-scale farmers, including more options for paid, local work that disproportionately benefits women of reproductive ages. The organic premium increases household incomes, and this can be boosted even further when combined with fair trade premiums.

Environmental Benefits

The body of science that shows the environmental benefits of organic farming is vast and growing, and these benefits also flow through the production systems of spices, herbs, and teas. The bulk of available studies focus on tea production and showcase benefits related to soil health, biodiversity, the reduction of heavy metals, and climate change mitigation.

Specifically, the reduction of chemical fertilizers and pesticide use in organic tea plantations improves soil microbial communities and water quality and has a positive impact on soil acidification. In one study, organic soil fertility management improved tea quality and reduced heavy metals in the soil and tea leaves.

Organic tea production, like organic production in general, is climate smart. Multiple studies found that when organic practices are used, soil in organic tea plantations sequestered more carbon, and more stable carbon. This was an especially strong outcome of long-term organic management of over 10 years, where gaps in yield also decreased. Improving the storage of soil organic carbon not only helps mitigate climate change for everyone, but is especially important locally, where it helps farmers better cope with the impacts of extreme weather.

Katrina Hunter is the Manager of Science Programs at The Organic Center (organic-center.org).

This article was originally published in the Fall 2022 Organic Report, you can view the full magazine here.

Climate-Smart, Organic Practices Build Soil and Improve Farming Under Changing Conditions

stephanie@llmpubs.com — Fri, 09 Sep 2022 17:37:27 +0000

September 9, 2022

Soil Health on Organic Farms

Healthy soils are essential for resilient crop production and supporting the ecosystem. They retain water, support a diversity of organisms vital to decomposition and nutrient cycling, provide crops with essential nutrients, and store away carbon, helping to mitigate global climate change. The growing demands for food, feed, fiber, and fuel cannot be met without healthy soils.

Unfortunately, soils in the United States are being degraded by unsustainable agricultural practices. Techniques used by organic farmers can help stop soil health degradation, and even restore health in previously degraded soils, because they replenish organic carbon and preserve underground biodiversity.

Many studies have shown that organic soils tend to score higher when it comes to soil health metrics than conventional soils. Organic soils have greater biological activity and stability, more biomass, and higher diversity than conventionally managed soils. Organically managed soils also tend to have higher water-holding capacity, porosity, and aggregate stability than conventionally managed soils, which can lead to yield advantages in extreme weather events such as droughts and flooding, meaning that organic may fare better as our planet continues to experience climate change.

Healthy Soils Help Mitigate Climate Change

Climate change is causing both gradual and extreme changes in weather conditions like temperature, rainfall, and devastating storms. These changes influence the success of crops by causing stress to the crops during drought, flood, or extreme temperatures. Populations of beneficial biodiversity like pollinators and natural enemies of pests are also impacted, while all kinds of pests and pathogens also change with the weather, typically increasing with more heat and humidity. Farmers are faced with fluctuating extremes in nearly every growing condition, which makes it challenging to produce reliable yields each year.

Carbon sequestration is a critical tool for building soil health and combatting climate change—locking carbon away in soil reserves reduces greenhouse gases. By using farming practices that reduce GHG emissions and draw carbon back into the soil (such as reducing tillage, pesticide use, and reliance on synthetic fertilizer) not only helps mitigate climate change, it also improves the soil structure, which helps farmers cope with changes in weather conditions associated with climate change.

Specifically, storing carbon sequestration:

Reduces erosion
Reduces compaction
Improves aeration, filtration, and water holding capacity
Provides a reserve of essential nutrients for plants
Supports soil organisms by providing a food source that in turn helps fight soil-borne diseases and supports more above-ground diversity

Organic Soils and Climate Change Mitigation

The Organic Center partnered with Northeastern University to explore how organic farming impacts carbon sequestration in the soil and found that not only do organic farms store more soil carbon in general, they also store more of the type of carbon that stays in the ground for longer periods of time. By analyzing more than a thousand soil samples from organically and conventionally managed soils from across 48 U.S. states, this ground-breaking work found that organic soils had 13 percent higher soil organic matter and 44 percent higher long-term carbon storage than conventionally managed soils.

These results highlight the potential of organic agriculture to increase the amount of carbon sequestration in the soil, contributing to climate change mitigation.

Digging Deeper: Specific Organic Practices That Increase Soil Health and Carbon Sequestration

While a growing body of scientific literature suggests that soil management strategies commonly used in organic systems improve overall soil health, there is less research on specific practices within organic systems that have the greatest potential to build healthy soils and sequester carbon.

However, a recent study conducted by the University of Maryland in collaboration with The Organic Center—and supported by the GRO Organic research fund, Annie’s Homegrown of General Mills, and Patagonia—provides a big-picture understanding of the organic techniques that have the most impact on soil health. The review of more than 150 studies from around the world on the benefits of organic farming to soil health and climate change mitigation illuminates specific organic farming practices that are the best of the best in supporting healthy soils.

The study identifies four practices that are the most critical to good soil health:

Planting cover crops
Applying combinations of organic inputs
Increasing crop rotation diversity and length
Conservation tillage

Not surprisingly, these practices have also been found to be important for boosting carbon storage in organic soils.

Another recent collaboration between The Organic Center and University of Maryland quantified how specific organic soil management techniques can optimize carbon sequestration within organic farms to show how organic farming can be used as a tool to move the needle even further in mitigating climate change.

For this meta-analysis, researchers sifted through more than 4,000 scientific articles to find data that put numbers behind the soil carbon-building techniques that organic farmers use. The results show that by adopting best management practices, organic growers can boost their soil organic carbon by an average of 18 percent, and increase microbial biomass carbon by an average of 30 percent.

The second major finding of this study is that organic soil amendments are key players in carbon sequestration—using best practices when it comes to biological soil amendments boosts soil organic carbon by an average of 24 percent. And because much of that carbon was found in the top 50 cm (20 in) of soil, using organic amendments is one of the most impactful strategies to quickly replenish carbon in the soil. Conservation tillage added another layer of benefits and cover cropping showed a significant increase in carbon sequestration after five years, rivaling that of conservation tillage.

The study authors also stress that diversifying key practices makes a difference. While each individual practice has benefits to carbon sequestration, challenges associated with organic farming can be better mitigated by a holistic suite of conservation tools when they are implemented in tandem.

Key Research Gaps

To better understand how organic farming can continue to lead the way in increasing carbon sequestration and soil health, more scientific exploration is needed of the length and diversity of crop rotations, as there is a dearth of research on how crop rotations impact carbon sequestration within organic systems. There is also little information about the impact of climate engineering tools such as biochar. Verification of organic practices through soil health measurements across the broad range of organic cropping systems and regions will also help farmers make informed decisions to optimize their practices and continually improve organic’s ability to build healthy soil to support organic production and the health of our communities.

You can find more soil health and climate related reports at The Organic Center’s Resource Library page at organic-center.org.

www.organic-center.org/organic-farming-practices-improving-soil-health

www.organic-center.org/maximizing-carbon-sequestration-organic-systems

This article was originally published in the Fall 2022 Organic Report, you can view the full magazine here.