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Hot Sales Household Mini Oven Electric Baking Oven Baking Equipment Bakery Oven: So direct fire baking is like boiling dumplings, to bear a few and water, the purpose is to let the inside and outside of the dumplings by heat evenly, otherwise the skin is cooked, filling is not cooked.
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Short preheating time: compared with hot-air and semi-hot-air roasters, direct-fired roasters have thinner furnace walls, so the overall average preheating time of the boiler is shorter.
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The flavor of manor beans can be expressed in a unique way: the process of direct fire roasting is the direct heat transfer to raw beans through the fire, that is, the roasting method in which the heat energy is gradually transferred from the external tissue of raw beans to the internal tissue.
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The same is true for direct roasting, which can adjust the vitality and damper to match the characteristics of raw beans, and choose low temperature roasting or high temperature roasting according to the condition of raw beans. Low temperature roasting is suitable for more raw bean input, while high temperature roasting is suitable for less input.
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Suitable for single bean or single bean coffee: direct roasting can show the flavor and aroma of coffee, which is better than hot or semi-hot roasting.
Disadvantages:
The heat in the boiler is not easy to adjust: because the boiler as a whole has a hole design, when the furnace at the bottom of the furnace to provide the first vitality, heat energy will immediately from other holes in the emission, the phenomenon of insufficient heat.
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But if you raise the temperature to compensate for the heat, it burns when the profit exceeds the amount of raw beans you can put in. Therefore, it is necessary to carefully observe the amount of raw beans to adjust the heat, it will be very good production. It is important to identify when the "yellow spot" occurred and when the first burst occurred.
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Less easy to even baking: because the heat energy in the boiler internal residence time is insufficient, so direct fire baking easy to uneven heat. In this case, no fire, but you can adjust Damper (Damper). When adjusting the damper, you also need to see whether the weather is high pressure or low pressure. Low-pressure weather has more openings than high-pressure weather. Otherwise, the skin will not be easy to expel, so there will be more smoke. If the smoke is not completely expelled, the smell and aroma of coffee will be Smoky.
Easy to be affected by external: external environment influences direct fire baking including: indoor temperature, outdoor temperature, air circulation, weather conditions, ventilation, etc.
Semi-hot air baking
This is by far the most popular and best managed coffee roasting method. It can make up for the shortcomings of the direct fire roaster, and improve the safety, but also can easily show the aroma and flavor of coffee.
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