Recent developments have seen coffee futures experience a significant increase, driven by fears of reduced supply due to severe drought conditions in Vietnam. Vietnam, a key player in the global coffee market, has faced substantial challenges this year, with projections indicating a potential 20% drop in coffee production for the 2023/24 crop year​. This situation highlights the urgent need for sustainable agricultural practices to mitigate the impact of climate change on coffee farming. One promising solution is the use of Black Soldier Fly Larvae (BSFL) frass as an organic fertilizer.

Vietnam’s Drought and Coffee Supply Concerns

The drought in Vietnam, which has been exacerbated by record high temperatures and insufficient rainfall, has stunted the growth of coffee trees and allowed pests to thrive, further damaging crops​ .

The Central Highlands, the heart of Vietnam’s coffee production, has recorded rainfall levels significantly below seasonal averages​​. These adverse conditions are expected to reduce Vietnam’s coffee exports by approximately 20% this year​​, driving robusta coffee prices to record highs.

BSFL Frass: A Sustainable Agricultural Solution

BSFL frass is gaining attention as a potent organic fertilizer that can support sustainable coffee farming in such challenging conditions.

Here’s how it benefits coffee plants:

  • Nutrient-Rich Composition
  • BSFL frass contains a balanced mix of nitrogen (N), phosphorus (P), and potassium (K), along with essential micronutrients. This nutrient profile supports the healthy growth of coffee plants, promoting robust development and higher yields. By using BSFL frass, farmers can reduce reliance on synthetic fertilizers, which are often costly and environmentally damaging.
  • Enhanced Soil Health
  • The organic matter in BSFL frass improves soil structure, enhancing aeration and water infiltration. This is critical for root development and nutrient uptake. Moreover, BSFL frass promotes beneficial microbial activity in the soil, which helps in breaking down organic matter and releasing nutrients in forms accessible to plants, thereby improving soil fertility over time.
  • Improved Moisture Retention
  • One of the significant advantages of BSFL frass is its ability to enhance soil moisture retention. The organic matter acts like a sponge, increasing the soil’s capacity to retain water. This is particularly beneficial during drought conditions, as it helps maintain adequate moisture levels for the coffee plants. Improved moisture retention ensures that plants have a consistent water supply, reducing stress during dry periods and improving water use efficiency.
  • Environmental Benefits
  • Using BSFL frass supports environmental sustainability by promoting a circular economy. It repurposes waste from insect farming into a valuable agricultural input, reducing the need for chemical fertilizers and their associated environmental impacts, such as soil acidification and water pollution.


The recent drought in Vietnam and its impact on coffee futures underscore the importance of resilient and sustainable agricultural practices. BSFL frass offers a scientifically grounded solution that not only supports coffee plant health and productivity but also enhances soil health and moisture retention. By adopting this organic fertilizer, coffee farmers can better withstand the challenges posed by climate change, ensuring a more stable and sustainable future for coffee production.

To learn more about how UB is working with coffee farmers in Mexico, visit