How to bake coffee beans without a bean dryer? Baking raw beans by baking bean heart

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If you want to enjoy baking beans without a bean baking machine, you can try hand-net baking.

The apparatus used in hand net baking is a simple bean baking appliance similar to a pan, ranging from 50 grams to 100 grams at a time, which is a good start for beginners! The concept of hand web baking also needs to have a corresponding BRR, but the baking is usually too thin to really store heat, but it is also because the thin makes the heat conduction faster, in other words, it does not require a long time to warm the pot.

However, don't forget that the production of water vapor is still the first factor, so you can preheat the raw beans on the gas stove before entering the pot. To what extent should it be preheated? You can try to sprinkle some water on the surface of the pot. if it evaporates immediately, it means that the temperature is enough.

The term "hand net" comes from getting up early in the form of a net, so that the source of fire can come into direct contact with raw beans, but the iron net is too hollow to store heat, so it gradually develops a design like a pan and is covered with iron mesh. There are even pots made of ceramics in the hope that more heat can be retained.

The hand net of this demonstration is mainly made of ceramic materials:

Preheat the pottery pot for more than 100℃ and use 100g raw beans

In the ugly duckling coffee roasting book, the basic concept of coffee roasting is the generation of water vapor. In order to make raw beans produce water vapor when they enter the pottery pot, there must be time to preheat. As long as the temperature is higher than 100 ℃.

Why? Because the heating process of the pottery pot is in an open state, unlike a bean baking machine boiler in a semi-airtight space, a certain amount of hot air will be produced during preheating, and the proportion of this hot air will indirectly affect the heating of raw beans by the boiler, so the preheating temperature of the bean baking machine will need 180 ℃ to 200 ℃ as compensation, but the pottery pot does not consider this!

How can you determine the temperature of a pottery pot if you don't have a proper thermometer at hand? It's very simple, just drop a drop of water on the surface of the pottery pot to see if it boils immediately!

This pottery pot is recommended to use 100 grams of raw beans, which can be poured in after the temperature reaches. Before pouring, remember to remove the fire source of the pottery pot, wait for all the raw beans to enter the pottery pot and then move back to the source of fire, and start shaking back and forth. The pottery pot is as close to the fire as possible but does not hit the bottom of the pot as a principle. At this point, it shakes back and forth at a speed of about two seconds and continues until water vapor is produced.

After the water vapor is produced, the clock starts for 1 minute. Wait until 1 minute later, turn on the gas firepower to double, continue to shake back and forth, shaking at the same speed as before.

There will be the sound of sparse beans exploding in the next 2 minutes. When it is denser, the distance between the pottery pot and the gas will be increased to a fist width for 30 seconds, and the coffee beans can be poured out of the pottery pot to cool. Cool to room temperature, then you can start to brew and enjoy a good cup of coffee!