bialetti safety valve brands

The devil is in the details. It is often the smallest things, the particularities, that make all the difference. This is also the case in regards to the preparation of a good coffee, a ritual in which all the steps and every single component play a fundamental role. Among all, one of the most important elements is the Moka valve. Often ignored, it is vital not only for the quality of the coffee, but also for the safety of those who prepare it.

The valve was born with the invention of the Moka Express in 1933. It is a safety valve positioned on the bottom chamber. To better understand the importance of the valve and its use, we need to take a step back and illustrate step by step

This is where the valve of the Moka comes into play. It must open when the pressure is too high. By doing so, it allows the steam to escape regularly, without causing any damage. In short, the Moka’s safety valve provides security. Hence, it should only intervene when the coffee maker is used under abnormal operating conditions.

A long-standing and debated question: how far can you fill the bottom chamber for a state-of-the-art coffee? The Moka valve can come in handy to answer this dilemma. Another important role of the valve is that it acts as a "measuring cup". Its position on the bottom chamber is not accidental. Rather, it indicates to those who prepare the coffee the correct amount of water to use. The only exception is for some special coffee pots that are already equipped with a measuring cup. Ideally the water should reach just below the safety valve.

The Moka valve, therefore, is not a decoration or a mere design element. Rather, it is a very important component for the correct functioning of the coffee maker. It guarantees safety and plays a part in the making of an excellent coffee.

Consequently, it is necessary to keep it clean and maintain it regularly. For example, using tap water to make coffee brings with it the risk of limescale deposits obstructing the hole in the valve. The resulting danger is that it could get clogged.

We have seen that one can simply use hot water to clean the Moka valve. To avoid limescale obstructions, simply move the piston that comes out of the valve along its axis when washing it. To ensure the Moka functions correctly, it is recommended to repeat this checkup periodically.

The moka pot is a stove-top or electric coffee maker that brews coffee by passing boiling water pressurized by steam through ground coffee. Named after the Yemeni city of Mocha, it was invented by Italian engineer Alfonso Bialetti in 1933 and quickly became one of the staples of Italian culture.Bialetti Industries continues to produce the same model under the trade name "Moka Express".

The boiler (marked A in the diagram) is filled with water almost up to the safety release valve (some models have an etched water level sign) and the funnel-shaped metal filter (B) is inserted. Italians generally do not preheat the water used, though established baristas such as James Hoffmann and Tristan Stephenson recommend using preheated water in the base.

A gasket ensures a tightly closed unit and allows for pressure to safely build up in the lower section, where a safety valve provides a necessary release in case this pressure should get too high.

Moka pots require periodic replacement of the rubber seal and the filters, and a check that the safety release valve is not blocked. When the rubber seal is new, it might alter the coffee taste, so a couple of "dry runs" can be made, without coffee or with used coffee grounds to "prime" it. It is an urban myth that leaving coffee stains in a moka pot is preferable – the rancid coffee should be scrubbed out of all parts of the pot. Moka pots are generally not dishwasher safe.

The moka pot comes in various sizes based on the number of 50 ml (2 imp fl oz; 2 US fl oz) espresso cups they produce. The following table are the standard sizes for the Bialetti Moka Express.

A few companies have introduced variations to the Moka pot design. One such design has incorporated a weighted valve called Cremator or Cremavent as a pressure regulator on top of the nozzle that allows pressure to build up inside the water tank in a manner similar to a pressure cooker. As pressure builds up more quickly in this method (since there is much less leakage of vapour) compared to the standard moka pot, it reaches the level required for water to rise through the ground coffee in a shorter time. The result is coffee brewed at a higher pressure and temperature than the standard pot, making it more similar to espresso and therefore with more visible crema.

While some claim that the highest quality percolators are made in Italy – which is no wonder, they are often simply called Italian espresso pots or ‘Bialetti’s’ – we don’t find this necessarily to be the case. On average, it’s fair to say that whenever it says ‘Made in Italy’ you can be rest assured the quality will be great, while China is more of a mixed bag. To boot, having an authentic Italian stovetop espresso maker does add to the charm a bit, doesn’t it?

Bialetti is the number one player in the stovetop espresso maker market, which is not a surprise once you see the thousands of happy customer reviews on their Moka pots. Due to its features, the Bialetti Moka Express has long been dubbed as one of the best coffee makers. The octagonal shape of the coffee maker allows the heat to distribute perfectly while your coffee brews, resulting in a strong Moka pot coffeein under 5 minutes (4).

I personally only use this Moka pot nowadays – I’ve been through other models and the consistency you get is unbeatable. Read my Bialetti Moka Express review if you wish to learn more. The Bialetti Brikka, a modern alternative to the Moka Express is also worth checking out.

The Bialetti Venus features soft lines and a harmonious design that gives it just as the name suggests an elegant look. It’s a beauty to the eye. It also produces great tasting coffee. Its stainless steel construction means it’s suited for induction cooktops. The handle is insulated to resist high temperatures, hence you can use the unit without having to worry about burning yourself when pouring.

The Moka Express Italia is a new icon of Italian design from Bialetti (the world"s number 1 with over 200 million machines sold). The classic Moka Express is the most popular household coffee maker for an excellent cup of Italian "caffè".

It guarantees the highest quality paired with absolute safety. More Italians use Bialetti than any other brand to prepare their coffee on the stovetop.

The Bialetti Brikka Stovetop Coffee Maker is an aluminum Moka Pot that utilizes an innovative "Brikka-System" system to consistently deliver delicious, rich stovetop coffee with a wonderful aroma. Bialetti’s patented dual safety valve ensures perfect froth every time by regulating the pressure of water flowing through grounds for a richer-tasting coffee.