Introduction of boiler coffee machine pressurized powder bowl coffee machine extraction

Introduction of boiler coffee machine pressurized powder bowl coffee machine extraction

In the Italian coffee machine, the temperature value is mainly affected by the size of the boiler or heating block, as well as good heat conduction materials, there is an obvious difference between the toy machine and the professional Italian coffee machine. In general, many standard toy machines are equipped with small boilers (below 200ml) or small heating blocks, so it is difficult to achieve a stable temperature, and the temperature fluctuates greatly in the process of coffee extraction. The machines of many small household appliance brands are like this (such as Cankun, Delong, Electrolux, etc.). After all, these brands are not professional coffee makers. Another thing to consider is a good heat conduction material, a good machine has a better circuit and pipeline design, using copper or stainless steel as the main material of the coffee machine, they have good thermal conductivity (to ensure uniform and stable temperature). Otherwise, it is still more than 90 degrees from the boiler to 70 or 80 degrees out of the coffee machine, which will be more obvious in the low temperature environment since we can't afford to play with Tuhao coffee machines. That's a return to the traditional espresso machine, to the half-century-old espresso's golden rule of "extracting 1 ounce (about 30ml) of espresso (espresso) in 25-30 seconds at 9bar pressure at a temperature of 90-92 degrees Celsius."

Although this golden rule is still controversial in professional coffee forums in recent years, 9bar pressure is basically not controversial, so a bunch of coffee machines boasting 15bar or higher actually refer to the most high pressure of the coffee machine, which is of little significance, and is generally used to fool newcomers. Stable pressure and stable temperature is the standard to measure the Italian coffee machine because the appearance and design imitate the foreign very successful home semi-automatic machine Lanchio silvia, so it is generally called imitation s, which can be won on Taobao about 1600 yuan, because of its high performance-to-price ratio, it is very popular among novices in the coffee forum.

Its boiler is not big, 300ml, but under the troubles of many friends in the forum, the current version design is still relatively reasonable, with some points for attention, it is possible to produce a cup of espresso (espresso) with more than 80%. Because the boiler is small, it is better to wait for a continuous cup. In fact, the introduction of this machine is rather perturbed. Basically, coffee veterans feel that it is not as good as the entry machine. Considering its popularity in the coffee forum, let's introduce it.