Exclusive Interview with Dr. Agustín Büchert

Dr. Agustín Büchert:

GotaBlanca's active ingredient is elemental silver, one of the most studied antimicrobial substances in history, formulated as microparticles suspended in a proprietary copolymer matrix. The way it works is straightforward: when the silver particles come into contact with moisture on the plant surface or on harvested produce, they release a tiny, very localized pulse of silver ions. Those ions attack the pathogen at the point of contact through several mechanisms simultaneously. They disrupt the cell membrane, interfere with the microbe's ability to produce energy, and damage its DNA. The pathogen essentially falls apart. Importantly, this all happens right at the surface. The silver does not enter the plant, does not travel through the soil, and is quenched almost immediately after contact. It is a strictly local event.

The reason this matters for farmers is twofold. First, because the silver attacks through multiple pathways at once, pathogens cannot develop resistance to it. That is a massive advantage. With conventional fungicides, resistance builds within a few years and forces farmers to rotate products, increase doses, or switch to something new. With GotaBlanca, that cycle does not exist. Second, because the product is non-systemic, it does not interfere with the plant's own metabolism. The plant keeps growing normally, photosynthesis and transpiration are unaffected, and there is no chemical stress that needs to be compensated with extra fertilizer.

As for why no one else has done this: the science of silver as an antimicrobial is well known, but turning it into a reliable, affordable agricultural product is an entirely different challenge. The formulation, the particle engineering, the copolymer delivery system that keeps the silver stable and effective at very low concentrations, all of that is protected by patents granted covering over 58 countries and by manufacturing trade secrets that cannot be copied from the patent alone. Plenty of companies understand what silver does. We figured out how to make it work consistently, safely, and affordably on a farm.

Dr. Agustín Büchert:

This is one of the most important questions in our space, and I appreciate that you framed it around what the grower and the distributor actually need to see. Biologicals have a credibility problem in the field, and for good reason: many of them are inconsistent across geographies, seasons, and crop types, and some degrade on the shelf before they even get to the farm.

We engineered around both of those constraints by design. GotaBlanca is not a living organism. It is an inorganic, contact-action formulation. There is no viability window, no cold chain requirement, no sensitivity to UV or temperature swings. The active ingredient is elemental silver, one of the most stable elements on the periodic table, suspended in a copolymer matrix designed for long shelf life and consistent dispersion. That gives us stability and logistics advantages that most biologicals simply cannot match.

On the performance side, we have built a very extensive trial library, and we benchmark everything against the incumbent synthetic products that farmers actually use and trust. In our Cornell University field trials across 13 crop-disease combinations, GotaBlanca matched or exceeded grower standard controls on diseases like grape Botrytis, apple fire blight, watermelon anthracnose, and beet leaf spot. In our postharvest banana trials, GotaBlanca matched azoxystrobin performance after 21 days of simulated transoceanic transit, and in pineapple, nearly 95% of treated fruit showed no mold at the recommended dose, performing comparably to fludioxonil. In rice in Panama, we replaced a three-product cocktail of a bactericide, a botanical fungicide, and chlorothalonil with a single GotaBlanca application at lower cost per hectare. All of this with zero phytotoxicity, zero detectable residues confirmed by Eurofins using EU import protocols, and no pre-harvest interval restrictions.

The consistency comes from the physics and chemistry of the product, not from biological variability. Elemental silver does not care about soil pH, ambient temperature, or microbial competition. It works the same way in a Honduran coffee field as it does in a New York vineyard.

Dr. Agustín Büchert:

We are living through the most significant wave of pesticide restrictions since the 1970s, and the pace is accelerating. The EU banned mancozeb in 2021, which accounts for over 90% of active ingredients used on exported bananas worldwide. Fludioxonil is under similar scrutiny. In 2023, Costa Rica rapidly banned chlorothalonil after discovering drinking water contamination at 200 times the legal limit. Neonicotinoids, chlorpyrifos, and a growing list of legacy actives are either gone or on borrowed time in major markets.

What is happening is not just a regulatory event. It is a structural shift in what can be sold and where. EU MRL tightening means that even if an active is still registered in the producing country, the produce treated with it may not be importable into Europe. Retailer-led programs from major supermarket chains are now setting residue standards stricter than regulators themselves. For an exporter in Central America or Southeast Asia, the question is no longer just "Is this product registered here?" It is "Will my buyer in Rotterdam or New York accept produce treated with this?"

We are positioned extremely well for this shift because our product leaves no detectable residues using the EU's own analytical protocols, it has zero pre-harvest interval, and it is compatible with organic certification. While GotaBlanca is not currently registered for use or sale in the U.S., an EPA registration is in process.

As for stranded assets, I would watch the broad-spectrum synthetic fungicides most closely: the dithiocarbamates, the chloronitriles, and increasingly some of the triazoles and strobilurins where resistance is eroding efficacy faster than new molecules can replace them. Those are multi-billion-dollar product categories, and the gap they leave behind is exactly where GotaBlanca fits.

Dr. Agustín Büchert:

The pattern I have seen in bio-based platforms that have struggled to scale usually involves one or more of three problems: narrow spectrum that limits the addressable market, inconsistency that erodes grower confidence, or a cost structure that does not survive contact with real distribution economics.

We have been deliberate about avoiding all three. On spectrum, GotaBlanca is effective against all fungi and all bacteria. That is not a marketing claim; it is a function of the physics. Silver ions do not discriminate between species of pathogens. This means a single product can address coffee rust, banana Sigatoka, tomato Phytophthora, rice bacterial blight, and postharvest molds. That wide range of targets simplifies the tasks for farmers, distributors, and manufacturers.

On cost, we designed a capital-light manufacturing model from the beginning. We control the most sensitive steps of the process in-house and use contract manufacturers for final formulation, which lets us scale into new geographies without building factories everywhere. GotaBlanca is priced competitively against branded incumbents, and in many cases, it replaces multi-product cocktails with a single application at a lower total cost per hectare. The unit economics work for the farmer, for the distributor, and for us.

On distribution, we partnered early with Colono Agropecuario, the largest agrochemical distributor in Central America, and more recently with SummitAgro International for Japan and South Korea. We do not try to build our own sales force in every market. We attach to existing distribution infrastructure with partners who already have the grower relationships and supply chain logistics. That is how agricultural chemicals actually scale, and many bio-startups underestimate how hard it is to build channel trust from scratch.

The other structural advantage is that GotaBlanca requires zero behavioral change from the farmer. You dilute it in water and spray it with the same equipment you already own. No cold chain, no special handling, no complicated rotation schedules. That sounds simple, but adoption friction is what kills a lot of promising products between the trial plot and the commercial order.

Dr. Agustín Büchert:

Operating across Central America taught us things we could never have learned in a lab or a greenhouse, and certainly not by starting in a single temperate-climate market.

The first and most obvious lesson is pathogen diversity. In Costa Rica alone, we deal with Colletotrichum on bananas, Phytophthora on tomatoes, Fusarium in multiple crops, and postharvest molds on pineapples bound for European supermarkets. In Honduras, the priority is coffee leaf rust, one of the most devastating and difficult-to-manage diseases in all of agriculture. In Panama, rice farmers are fighting bacterial panicle blight and sheath blight simultaneously. Each of these is a different pathogen, a different crop architecture, a different climate zone, and a different set of grower economics. That diversity forced us to prove broad-spectrum efficacy under real-world conditions very early, across tropical lowlands, highland coffee farms, and irrigated rice paddies. A company that develops in a controlled environment in California or the Netherlands and then tries to export that into the tropics often discovers that the product does not perform the same way at 90% humidity and the Caribbean heat.

The second lesson is about the supply chain. Central American agriculture is export-oriented. Costa Rica is the world's largest pineapple exporter; Honduras is a major coffee origin; Panama ships rice regionally. These are farmers who need their produce to survive 21 days of transoceanic transit and arrive at a European port meeting EU residue standards. That forced us to develop and validate our postharvest formulations under real transit conditions, not simulated shelf-life tests.

The third, and perhaps the most underappreciated lesson, is what happens when you work directly with farmers who are dealing with the consequences of toxic chemistry firsthand. In the communities where we operate, farmers and farmworkers get sick from agrochemical exposure. The urgency to find safer alternatives is not theoretical. It shaped how we think about product design, because safety is not a nice-to-have regulatory checkbox for us; it is a core requirement from the people who use the product every day.

Dr. Agustín Büchert:

In five years, we need to be commercially present in at least 15 countries, with the U.S. market open through our EPA registration, and a strong foothold in at least two to three major Asian markets through our partnership with SummitAgro International. We also need our EU market access strategy well advanced, because the EU sets the residue standards that determine whether produce from our core markets can be imported into European supermarkets. That makes EU regulatory alignment essential for every exporter we work with.

On R&D, the platform needs to be fully visible to the market. GotaBlanca is not a single product; it is a technology platform. We already have our postharvest formulation validated and in the registration process. The PlantDefense Kit for tissue culture, our adjuvant product, the shelf-life extension application for retail, seed protection, fertigation-compatible formulations, all of these are in various stages of development and together they demonstrate that this is not a one-product company, but a foundational technology with applications across the entire crop lifecycle.

On partnerships, we need to deepen existing distribution relationships and add new ones in key geographies. The SummitAgro deal for Japan and South Korea, and our relationship with Colono Agropecuario in Central America, are the model. We attach to established distribution networks and let them do what they do best while we focus on product innovation and regulatory strategy.

The single biggest execution risk is regulatory timing. Agricultural registrations are complex, slow, and designed for conventional chemistry. Even though the science supports us and the regulatory trend is moving in our direction, we are navigating bureaucracies that were built for a different era of crop protection. A delay in the EPA process or in the pathway for other geographies by even a year can shift revenue projections significantly. We are managing this by working with top-tier regulatory consultants, pursuing multiple registration pathways in parallel, and building revenue in markets where we already have clearance to sell. But if you ask me what keeps me up at night, it is that the world needs these products faster than regulators can approve them.