Solutions

Kleanland ESP Device Tailored for Coffee Roasting Odors and Chaff

During roasting, strong odors mainly come from VOCs. High heat breaks down green bean molecules into aromatic compounds—like aldehydes, ketones, and phenolics—with pungent scents. Smoke, chaff, and particulates further intensify the smell, especially in darker roasts. Kleanland ESP device is specially designed to filtrate the roasting odors and smokes including dust and chaff, no throwaway filter, low maintenance during lifetime operation

pollutants Generated from Coffee Roasting Process

During the roasting process, several pollutants are generated as byproducts. Key emissions include:
Volatile Organic Compounds (VOCs): These are a group of chemicals, including compounds like diacetyl and 2,3-pentanedione, that vaporize at roasting temperatures.
Carbon Monoxide (CO) and Carbon Dioxide (CO₂): These gases are produced due to the combustion process and the breakdown of organic matter during roasting.
Particulate Matter: This includes fine dust, smoke particles, and chaff (the thin husks released from coffee beans), which can affect air quality.
Odorous Compounds: The smoke and vapor contain compounds that lead to strong odors, which, beyond affecting the flavor of the coffee, can be a nuisance and a health concern if inhaled over time. coffee roasting smoke fume odor cleaner

Introduction to the Process of Oil Fume Purification in Food Processing

The high-temperature steam containing oil fume exhaust gas evaporated from the frying line is collected by the smoke collection device and transported through the gas pipeline to enter the cooler. Through the condensation effect of circulating water, the temperature of the flue gas is lowered to below 50 ℃, causing the pollutants in the flue gas to condense and aggregate into large oil fume particles. Considering the high melting point of palm oil, which is about 27-50 ℃, the temperature should be controlled at 50-55 ℃ to reduce the condensation of palm oil and block purification equipment.;

The cooled flue gas enters the electrostatic fume removal equipment. Under the action of high-voltage static electricity, the fume particles are charged, and the charged particles are collected by the adsorption unit on the anode plate of the equipment and then flow to the bottom of the equipment. They are smoothly discharged through the pressure holding pipe of the oil outlet. At the same time, the ozone generated in the electrostatic field can remove some odors;

The purified flue gas is discharged through the chimney after being purified by the induced draft fan pipeline

Small Coffee Roasters at Shop

Coffee houses typically use two main types of roasters: Drum Roasters, which employ a rotating drum to heat beans through conduction and convection, yielding rich, complex flavors, and Fluid-Bed Roasters, which utilize hot air to suspend and roast beans, resulting in faster roasting times and bright, clean flavor profiles.

coffee bean roasting mill air pollution smoke purifier

Industrial Grade Roasters at Roasting Mill

Coffee roasting mills typically utilize industrial-grade drum roasters for large-scale production. These machines feature rotating drums that evenly heat beans through conduction and convection, ensuring consistent and high-quality roasts. Industrial drum roasters are featured with advanced controls and data-logging capabilities to fine-tune the roasting process. These robust machines can handle substantial quantities of beans per batch, making them ideal for commercial operations.

Recommended ESP smoke precipitators and odor eliminators for coffee roasting process

For the emission of various coffee bean roasters, we recommend the following solutions

Kleanland electrostatic smoke precipitators are effective in purifying coffee roasting smoke because they use high-voltage electricity to charge and capture smoke particles on collector plates, removing up to 95% of particulate matter—including harmful VOCs and fine dust—from the exhaust stream. This technology not only significantly reduces visible smoke and odors but also operates without additional combustion, thereby avoiding extra greenhouse gas emissions. Their efficiency and eco-friendly operation make them a valuable tool in maintaining cleaner air quality in coffee roasteries. air purifier for coffee roasting machine

air purifier for coffee roasting machine

smoke purifier for coffee roasting machine roaster

Selection parameters of Esp filter in food processing

Model	Air Volume	Filter Cell	Efficiency	Introduction
Coffee Roasting Fume Eatoer	2K-4K	Washable stainless steel ESP cell	95%	More