Natural gas was the predominant energy source for coffee roasting machines for many years. However, in recent years, with electrification and advances in electric heating technology, electric coffee roasters are gradually entering the market.
With the growing demand for sustainable coffee, more and more coffee roast owners are choosing electric coffee roasting machines due to their environmentally friendly, low-emission, and low-cost features.
However, gas coffee bean roasters are still the first choice for many. Gas roasters are more prevalent in areas with frequent power outages, such as South Africa, and in some places where electricity is expensive.
Gas and electric coffee roaster heating Methods
Gas Coffee Roasters: Heat is generated by igniting natural gas or propane to create a flame. This type of heating provides rapid heating and cooling effects and is suitable for roasting processes that require instantaneous temperature regulation.
Electric Coffee Roasters: Heated using an electric heating element. The electric heating element transfers the heat evenly to the roasting chamber, thus heating the coffee beans. This type of heating takes relatively longer and is usually more evenly distributed.
We can see by the heating method that gas coffee roasting machines offer a higher degree of precision and regulation. The heating and temperature can be adjusted instantly with manual operation and constant adjustments, resulting in more flavorful coffee beans. This approach suits experienced people who precisely grasp temperature changes.
On the other hand, electric roasters rely more on automation and precise control to provide even heat distribution. Due to the even heating and relatively consistent roasting results, it is ideal for coffee shops or coffee bean merchants looking for consistent roasted flavors.
Electric roasters are often easier to operate, with Artisan software and built-in program functions to help set roasting patterns. This approach requires less manual intervention and is suitable for inexperienced individuals or businesses requiring specific coffee bean flavors.
The difference in roasting capacity between gas and electric coffee roasters
Gas coffee roasting machines usually have a sizeable roasting capacity, ranging from 1kg to 200kg. This is due to the high efficiency of the flame heating in gas roasters, which enables them to reach the required temperature quickly and is suitable for large roasts.
Gas roasters are usually more complex in design, materials and construction and are better suited to high temperatures and long hours of operation.
Electric coffee bean roasters have smaller capacities due to power limitations and heat generation, making them more suitable for home or small commercial use.
Electric coffee roasting machines heat up and cool down relatively slowly, and the roasting process is gradual and smooth, making them suitable for small batches or low-frequency use.
Our PKF series coffee roaster machines are available from 1kg, 2kg, 3kg, 6kg, and 12kg up to 200kg, with 1 to 15kg available in gas and electric models and 20kg and above in gas models. Please get in touch with us for more information.
Operating Costs of Electric and Gas Coffee Roasters
The costs associated with operating an electric or gas roaster machine vary by location.
The main cost of operating a gas roaster comes from the cost of gas. Gas prices usually vary depending on location and market fluctuations. Where prices are lower, gas roasters can be relatively inexpensive to operate.
In addition, using gas usually requires additional smoke extractors and booster burners for large-scale roasting. Large gas roasting machines will need a license in some areas, which comes at a cost.
Gas coffee roaster machines are highly durable, especially the heating element. However, it is essential to note that these roasters require regular maintenance and servicing, including checking the safety of the gas system and cleaning the exhaust system.
The cost of running an electric roaster depends mainly on the price of electricity. Electricity prices vary considerably from country to country and region to region. Electric roasters can be more expensive in energy costs, especially in places where electricity is more costly.
Electric coffee roaster machines usually require less maintenance and upkeep. The heating elements in electric roasters typically need to be replaced every 5-6 years, but overall they require less maintenance.
In summary, both electric and gas roaster machines have their advantages. You can decide based on your preferences, geography, budget, energy costs, and the environment. Whichever device you choose, it will help you roast quality coffee beans.