You can buy a special baking hand net, or you can relatively fix two screens with handles as hand nets. This kind of prop is relatively cheap, and it can adjust the firepower intuitively, and you can also confirm the whole process of changing beans with your own eyes, which is very practical for you to be familiar with the baking process.
However, in the process of shaking above the heat source, the hand net is easily separated from the position of the flame, and the flame is easily affected by the surrounding airflow, and it is not easy to supply stable heat, which makes it difficult for the beans to fully expand and the taste is easy to be astringent and spicy. Hand-net baking can't provide stable and uniform heat, and it will be difficult to bake ideal coffee to some extent. In addition, hand-cleaning baking is mostly carried out according to the feeling of each baker, so the results of each baking are difficult to be consistent.
Despite this limitation, you can get better coffee as long as you master the variables that may appear in the baking process. When baking with hand net, the status and quantity of raw beans, time, firepower and the height of hand net will become very important variables. If these conditions are different every baking, the baking results will be different every time, so try to reduce this variable until you get similar baking results.
If you want to practice baking according to the set time period, you will gradually get familiar with the feeling of adjusting firepower, so it is best to set the time before baking at the initial baking. Firepower adjustment is the most difficult part when baking hand nets. There are two ways to adjust the power of fire, one is the height from the flame, the other is the size of the flame, and the baking results of the two are also very different.
When baking at home, silver dander will fly out, so for the convenience of cleaning, people like to choose portable burners. However, the portable burner, due to the small capacity of the fuel barrel, will occasionally run out of gas when baking for a long time, making the flame smaller and unable to heat stably. Therefore, it is necessary to carefully observe the flame size and adjust the flame size if necessary.