The roasting process always produces by-products like smoke and smell. Depending on the size of your coffee roaster you can choose an electrostatic filter or an afterburner to reduce the impact of the exhaust. In general, we recommend the electrostatic filter for the W1 and W6 roasters and an afterburner for the W15 roaster and for all larger models. In all cases, you must check with your local authorities what type of solution is required to meet the local air quality standards.
If you utilize a smaller coffee roaster (W1 or W6), depending on the location of your company, it may be sensible to filter the exhaust using an electrostatic filter. Electrostatic filters remove fine particulate matter such as dust and smoke from the air stream using the force of an induced electrostatic charge. In this way the electrostatic filters can clean up to 95% of the visible smoke and possibly some of the roasting odors. It is relatively easy to install electrostatic filters in combination with coffee roasters up to a capacity of 15 kgs per batch. This means that you can combine these filters with the Giesen W1 Coffee Roaster, the Giesen W6 and possibly the Giesen W15 models.
With larger roasting machines the emissions will be too high for an electrostatic filter to handle. In this situation it is highly recommended to install an afterburner. With the size of the roaster, the volume of exhaust gases will increase equally. With an afterburner the emissions of the roaster are incinerated inside the burner chamber of the afterburner. As a result, the smoke and smell will be drastically reduced up to 98%. In the end, the afterburner is the safest investment for your company to take care of your coffee roasting emissions.
If you have any questions regarding electrostatic filters and afterburners, please do not hesitate to contact us.
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