Comparison De'Longhi PrimaDonna Avant ESAM 6700 stainless steel vs De'Longhi EC 9 blue

— Espresso (portafilter). All espresso coffee makers follow a similar principle: hot water under high pressure (ranging from 4 to ideally 10 bar or more) is passed through a holder containing ground coffee. This extraction process maximizes the extraction of flavor, aroma, and beneficial properties from the coffee, resulting in a characteristic foam. This method is used to prepare espresso as well as many other coffee drinks (refer to "Preset programs"). Specifically, manual espresso coffee makers feature a detachable holder, often referred to as a "horn" and all the operations with the holder are performed manually. The user measures the desired amount of coffee, fills it into the holder, tamps it with a tamper, installs it into the coffee maker, and disposes of the used coffee grounds after brewing. Manual espresso machines require a certain level of skill but also allow baristas to showcase their expertise and achieve flavors that are difficult to replicate with automatic coffee makers. That's why most coffee houses and restaurants use manual espresso coffee makers, and coffee enthusiasts who appreciate the art of coffee-making prefer them for their home use.

— Espresso (automatic). There are various espresso coffee makers available, including those with high automation levels. In these models, the customer only needs to load coffee and water and initiate the brewing process by giving a start comma...nd. All other operations such as dosing, tamping, and cleaning after brewing are performed automatically by the coffee maker. Automatic espresso makers offer convenience and ease of use compared to manual ones. They minimize the number of unnecessary steps involved in coffee preparation, and the "human factor" has minimal impact on the process, ensuring consistent drink quality. However, for many coffee enthusiasts, these aspects are considered drawbacks rather than advantages. Some value the ritual and artistry of manual coffee-making, while others enjoy the freedom to experiment with various variables such as dosage and tamping to achieve the perfect taste. Additionally, automatic coffee makers tend to be more expensive than manual espresso machines with similar features and capabilities.

— Capsule. Capsule coffee makers are automated devices designed to prepare coffee using pre-packaged, sealed containers known as capsules. These capsules contain pre-ground coffee, precisely measured for a single serving of a specific drink. Using capsule coffee makers is incredibly simple and convenient. Users just need to insert a capsule, start the brewing process, wait for it to finish, and then remove the used capsule. Capsule coffee makers offer several advantages. Firstly, they eliminate the "human factor" in the brewing process since each capsule contains a standardized portion of coffee, ensuring consistent taste with every cup. Additionally, the capsules are tightly sealed with a foil lid, allowing for long-term storage without compromising the quality of the coffee. Moreover, capsule systems provide a wide variety of flavors and options for different drinks. However, there are some drawbacks to consider. The cost of drinks made with capsules tends to be higher compared to using whole beans or ground coffee, making it a more expensive option. Furthermore, different coffee makers manufacturers use different capsule formats, limiting the compatibility between machines and capsules. Alternatively, reusable capsules are available, which can be filled with ground coffee according to personal preference. These reusable capsules are more cost-effective but require thorough cleaning when switching between coffee varieties and are not suitable for long-term storage. In summary, capsule coffee makers offer convenience, consistency, and a wide range of flavors, but they come with higher costs and limitations in terms of compatibility between machines and capsules. Reusable capsules provide more flexibility but require regular cleaning and lack the extended storage capabilities of disposable capsules.

— Filter (drip). A type of coffee maker that is especially popular on the American continent, but has recently been increasingly used in Europe. These coffee makers operate on a similar principle to the espresso makers described earlier, but with one key difference: the hot water passes through the coffee filter due to gravity rather than under pressure. Another distinguishing feature is that filter coffee uses beans that are less roasted and coarsely ground compared to espresso. As a result, the resulting drink, known as filter coffee or "pourover," is less intense than espresso, lacks the characteristic foam, has a more uniform consistency, and a lower concentration of caffeine (which is compensated for by larger serving sizes, typically around 120-150 ml). Filter coffee makers typically include a transparent coffee jug capable of holding 10 or more standard servings, or another container for serving the prepared coffee, such as a mug.

— Combined. Models that combine both a filter coffee maker and an espresso coffee maker (usually manual type). See above for each of these varieties, and their combination provides appropriate versatility, allowing you to prepare both filter coffee and espresso-based drinks in one coffee maker. On the other hand, such a combination is not cheap, and the real need for it rarely arises: domestic coffee lovers much more often prefer Americano, rather than pour over. Therefore, combined models have not received much distribution.

— Geyser. Another name for this type of coffee maker is "Moka" or "Moka Express." These coffee makers have a distinctive appearance, resembling teapots with a unique shape that tapers towards the middle. The Moka pot consists of two chambers: the lower chamber is where water is added, and the upper chamber is used to collect the brewed coffee. These two chambers are connected by a vertical tube that contains a filter for ground coffee. The grind size for Moka pots is slightly larger than that used for espresso. When the Moka pot is heated, the pressure increases in the lower chamber, forcing hot water to pass through the coffee filter and into the upper chamber, resulting in a concentrated and flavorful coffee similar in quality to espresso. Geyser-style coffee makers, such as Moka pots, are simpler in design and operation compared to espresso machines. They are also more affordable, compact, and considered safer to use. One drawback of Moka pots is that the water can reach excessively high temperatures (above 96°C), which can lead to overly bitter coffee. However, many Moka pot models include temperature limiters to mitigate this issue and prevent overheating. Moka pots have a distinctive teapot-like design and operate by using pressure generated from heated water to brew coffee. They offer a simpler and more affordable alternative to espresso machines, producing concentrated coffee with flavors similar to espresso.

— Electric Turk. The electrical analogue of the Turks (cezva) — a special vessel for making coffee in the oriental (Turkish) way. One of the advantages of such a device over the usual cezve is that the electric Turk can be provided with automation that will turn off the heating when the optimum temperature is reached (which means that the customer does not have to independently monitor the process). The volume of electric cezva, like conventional ones, is small — about 300-400 ml; coffee should be of the finest grinding, and the drink as a result is extremely rich, with a high content of grounds. True, some connoisseurs are skeptical about electric Turks, believing that they do not allow you to achieve the "right" taste; however, this point is more related to self-belief than to the actual taste of coffee.

— Siphon. Siphon coffee makers use a principle of operation that was popular in the 19th century but then forgotten. Recently, it has regained popularity. The process involves two containers connected by a tube, with coffee in the upper container and water in the lower one. When heated, the water rises, mixes with the coffee, and then flows back down, passing through a filter. This method is known for producing a mild and pleasant taste. However, siphon coffee makers are complex and produced in limited quantities for coffee enthusiasts.

The presence in the device of its own built-in coffee grinder. Such additional equipment affects the cost, but provides several important advantages. Firstly, you can grind beans immediately before brewing — and, as you know, freshly ground coffee is considered the most delicious. Secondly, some coffee grinders allow you to adjust the degree of grinding at its discretion; this will be appreciated by those who like to experiment with different sorts of beans and degrees of brewing. Thirdly, coffee beans is usually cheaper than factory ground coffee; this moment is especially relevant for coffee shops, bars and restaurants, where coffee drinks have to be prepared often and in large quantities.

Types of coffee for which the coffee maker was originally designed.

— Ground. Traditional ground coffee; the easiest way is to buy such a product in finished form, but if you wish, you can grind it yourself from whole beans. And if this option is specified for a model with a built-in coffee grinder (see above), this means that both beans and pre-ground coffee can be loaded into it.

— In grains. This option means that the coffee maker is equipped with a built-in coffee grinder by definition, which means that you can grind beans in it immediately before brewing, which allows you to maximize the taste and aroma. For more information about the other benefits of this option, see "Built-in coffee grinder". Also note here that some coffee makers with this function also allow the use of ground coffee (see above), others work exclusively with beans from their own coffee grinder and do not require loading a powder that was ground separately.

— Capsules. Ground coffee, packaged in special capsules; usually, one such container is used to prepare one serving of the drink. Capsule coffee makers are extremely simple and easy to use: just load the capsule, turn on the making and wait for the end of the process, and then remove the used container. The capsules themselves can be both disposable and reusable. The advantage of the first option is that the human fac...tor is eliminated from the brewing process: each capsule contains a standard portion of coffee, and each next cup is no different from the previous one. In addition, disposable containers are hermetically sealed and can be stored for a long time without loss of quality. Their disadvantages are the limited flavors, the high final cost of the drink (almost twice as expensive as using beans or ground coffee), and the fact that different manufacturers of coffee makers use different capsule formats. Reusable capsules can be refilled with ground coffee to your taste, they are cheaper, but not suitable for long-term storage and require thorough cleaning when changing coffee sorts.

— Pods (cialda). A type of portion packaging in which roasted ground coffee is packed in a special filter, most often paper; each such filter is stored in a sealed bag. From a practical point of view, pods are very similar to disposable capsules (see above). On the one hand, the preparation of such coffee is extremely simple, convenient and does not require any special skills: just load the pod, turn on the coffee maker and wait for the preparation; and sealed packaging allows you to store such coffee for a long time. But pods do not allow you to experiment with different sorts, grinding levels and preparing features, and the selection of sorts and flavors among them is rather limited. In terms of one cup of coffee in pods, it is cheaper than a drink from disposable capsules, but still more expensive than coffee from ground beans.

On a separate note some models of coffee makers allow the user to use several types of coffee at once. For example, in the holder of some manual espresso coffee makers (see "Type"), both a portion of ground coffee and a pod can be loaded.

Programmes for the preparation of individual drinks provided in the coffee maker.

This list can include both the classic, most popular coffee and hot drinks (espresso, americano, ristretto, cappuccino, latte, latte macchiato, hot chocolate), as well as more specific recipes: espresso macchiato, espresso lungo, double espresso, Flat White, Long Black, cream coffee, etc. Also, the design often provides for separate modes for obtaining hot milk, milk foam and hot water. Here is a more detailed description of each of these options:

— Custom programme. A function that allows the users to create their own coffee recipes according to their preferences. In this mode, users can adjust key brewing parameters such as the degree of coffee grinding (with the availability of built-in coffee grinders in many machines), water temperature, water volume, operating pressure, and more. This feature allows individuals to effortlessly prepare their unique a...nd personalized coffee with just a simple button press. Certain models even offer the ability to save multiple programs and user profiles, catering to multiple individuals with their own sets of recipes.

— Espresso. Classic Italian espresso is one of the most famous and popular coffee drinks. The standard serving volume is 35 mL, it is prepared from 7 g of coffee. Ideally, the drink should have a characteristic light crema. Such coffee has a rich taste and aroma, which is why many consider it perhaps the most “powerful” in terms of impact; however, espresso actually contains relatively little caffeine.

— Espresso macchiato. Espresso (see above) with added milk foam. Such a drink is similar to the cappuccino described below, but it has a smaller volume due to the smaller amount of milk — about 15 mL is added in traditional recipes.

— Espresso lungo. A variety of espresso (see above) characterized by a large amount of water (up to 60 mL instead of 35 mL), a long extraction time and, as a result, a higher caffeine content. In fact, lungo is a cross between classic espresso and americano.

— Double espresso. Also known as "doppio" (espresso doppio). The name fully corresponds to the essence of this drink: it is, in fact, two servings of espresso (70 g) in one cup. The amount of coffee when cooking is also taken twice as much — 14 g instead of 7 g.

— Ristretto. The strongest and most concentrated of the popular coffee drinks, also referred to as "short espresso". With the same amount of coffee (7 g), much less water goes to a serving of ristretto — about 20 – 25 mL.

— Flat White. Flat White is a drink hat consists of a double espresso shot blended with slightly frothed milk. Approximately 110 mL of milk is added to 60 mL of espresso, resulting in a total volume of around 170 mL. Compared to cappuccino and latte, a Flat White offers a more pronounced coffee flavor while still maintaining a smooth, milky aftertaste that is characteristic of this drink.

— Long Black. The Long Black is a drink that shares similarities with the Americano (see below). It is made by combining a double shot of espresso with hot water. However, there are two main differences: firstly, the Long Black uses a double portion of espresso, making it stronger and more concentrated than an Americano. Secondly, when preparing the drink, the espresso is poured into the water, rather than the other way around. This method helps preserve the dense and aromatic foam characteristic of espresso. The standard serving volume for a Long Black is approximately 120 mL.

— Americano. Americano is a drink made by diluting regular or double espresso (see above) with hot water. The typical ratio is between 1:2 to 1:4, resulting in a finished drink volume ranging from 110 to 240 mL, although other volumes and proportions are possible. The addition of hot water softens the intense flavor of espresso and helps to reduce any perceived bitterness, which some individuals may find excessive. While some traditional coffee enthusiasts may be skeptical of the Americano, it remains a popular choice due to personal taste preferences. Ultimately, the enjoyment of this drink is subjective and varies from person to person.

— Coffee crema. A "Black" coffee drink is prepared in a relatively large volume, similar to an Americano (see above), ranging from 180 to 240 mL. The key difference lies in the brewing method. Instead of adding water to pre-brewed espresso, the entire volume of water is passed through ground coffee. Additionally, the coffee used for this drink should have a coarser grind compared to espresso and espresso-based drinks. The term "crema" in the name refers to the thick, nut-colored foam that forms on top of the drink, which is particularly dense in this type of coffee.

— Cappuccino. Cappuccino is a coffee drink made with approximately 4 parts frothed milk to 1 part espresso, resulting in a final volume of around 150 mL. One of the defining characteristics of cappuccino is the generous amount of milk foam on top. The preparation process for cappuccino can vary, with options ranging from fully automatic to semi-automatic or even completely manual methods. For detailed instructions on how to prepare a cappuccino, please refer to the specific guidelines provided under the section "Cappuccino making."

— Latte. Latte is another espresso-based drink that includes both milk and milk foam on the surface. It differs from the cappuccino mentioned earlier in a few ways. Firstly, it has a slightly smaller amount of foam. Secondly, it is served in a special tall glass and typically enjoyed by drinking through a straw. Additionally, the volume of a latte can be larger, reaching up to 360 mL. One can also add various syrups to the drink to create unique flavors and taste combinations.

— Latte macchiato. A drink that has a similar composition to the latte mentioned earlier. However, it differs in the preparation method. In the case of a latte macchiato, instead of pouring milk into the coffee, the coffee is poured into the milk, but in a specific manner. The milk is first frothed, and then espresso is poured through the foam. This process creates a small mark or speck on the surface of the foam, which is why the drink is called "macchiato" meaning "stained" in Italian. A properly prepared latte macchiato has a layered structure, with the coffee on top and the thicker and cooler milk at the bottom.

— Hot chocolate. In this context, the term can refer to both traditional hot chocolate and a more affordable and easier-to-prepare alternative called cocoa. Traditional hot chocolate is made by melting solid chocolate into hot milk, while cocoa is made using cocoa powder and can be prepared with either milk or water. The specific methods of preparing hot chocolate in various coffee makers may vary, and it is advisable to refer to the specific instructions provided for each machine.

— Hot milk. A separate programme for heating milk — usually up to a temperature of about 65 °C. Milk heated to such a temperature is already perceived as hot, but it does not turn into foam, moreover, it acquires a sweetish taste. Such milk can be used both for preparing various types of coffee (the same cappuccino or latte), and as an separate drink.

— Milk foam. A dedicated program for preparing milk foam is available in coffee makers, particularly in models with automatic and semi-automatic cappuccino preparation (as mentioned below). This feature allows the machine to autonomously draw milk from an external or built-in container, froth it into foam, and dispense it through the spout. This program not only facilitates the creation of traditional cappuccinos but also provides opportunities for experimentation and the development of unique recipes. It enables users to add foam to drinks that may not have originally included it in their recipes, offering enhanced customization options.

— Hot water. A separate programme for heating water — usually up to a temperature of about 90 °C. Such water can be used both for making coffee (primarily Americano, see above), and for brewing various tea — classic, herbal, berry, etc.: for many of these compositions, the temperature of 90 °C is optimal.

Note that not all are listed above, but only the most popular programmes used in modern coffee makers. In addition to them, other recipes may be provided in the design — for example, cold brew, cortado (espresso and hot milk 1 to 1), etc.

Method of preparing milk and coffee drinks (cappuccino, latte, latte macchiato, etc. - see “Preset programs”) provided in the coffee maker. The differences between the methods lie primarily in the method of preparing milk froth:

- Manual. With this method, the customer must independently froth the milk - the coffee maker only provides the hot steam under pressure necessary for this. Steam is supplied through a tube, which usually has a special “panarello” nozzle - it makes it easier to whip up the foam. Occasionally there are models without such an attachment, with a “bare” tube - they are designed mainly for professionals. Manual systems are simple and inexpensive in themselves, and they also provide a certain “freedom of imagination”, allowing you to experiment with the cooking process; however, using such systems requires some skill.

— Semi-automatic. This method involves the presence of a separate spout from which milk foam is dispensed. The coffee maker prepares this foam on its own, drawing milk from an external vessel through a special tube (however, there are also models with a built-in milk reservoir). When using such a device, you first need to make espresso, and then move the cup under the “milk” spout and press the foam button (or in the reverse order if you are preparing a latte macchiato). The spouts can be located next to each other - then there is no need to move the cup;...however, coffee and foam are still prepared separately in such devices. However, this method is still noticeably simpler and faster than manual.

— Automatic. The most automated cooking process, allowing you to get drinks with milk foam literally in one click: just put the cup under the spout, turn on the program - and the coffee maker will automatically dispense a portion of espresso and the required amount of foam. As a rule, such models are equipped with their own milk tank (see below). This method is the most convenient, but it is worth remembering that different recipes require a different order of ingredients: for example, when preparing latte and cappuccino, milk is added to the coffee, when preparing latte macchiato, vice versa. At the same time, not all automatic coffee makers have the ability to choose the order; This nuance should be clarified before purchasing.

— Automatic and manual. Some advanced models of coffee makers provide both methods for preparing milk drinks, thereby providing flexibility in choosing an approach. A manual milk frother may be preferable if you want to have more control over the process, while an automatic one is a convenient option for those who appreciate ease of use.

There are also coffee makers without a milk frother. Due to the specifics of their work, they significantly save time on preparing drinks and do not require careful maintenance. The system of such coffee makers does not have a milk tract, which requires close attention in terms of regular and labor-intensive maintenance. Models without the function of preparing cappuccino and other coffee and milk drinks are well suited for office premises and public places.

— Grinding degree. Choosing the degree of coffee grinding is crucial for achieving the desired strength and consistency of the final coffee. Different types of coffee drinks require varying degrees of grinding. For espresso and related drinks like cappuccino and latte, a fine grind is necessary. Turkish coffee requires an extremely fine grind, almost like "dust." Cream coffee and filter coffee are best with a medium grind, while a coarse grind works well for French press.

— Pre-wetting. One option available in some coffee makers is the ability to pre-moisten the ground coffee with hot water before brewing the drink. This feature allows users to customize the duration of coffee wetting, although there may be exceptions. Pre-wetting plays a crucial role in enhancing the taste and aroma of coffee, resulting in a more intense and flavorful beverage. Automatic coffee makers often include this feature.

— The strength of the drink. Coffee enthusiasts have the option to manually adjust the strength of their beverage. This adjustment can be achieved through various methods, such as changing the coffee-to-water ratio, adjusting the water temperature, or controlling the brewing speed. The number of available settings may vary, ranging from a basic choice between "strong" and "mild" to more advanced options. Regardless of the number of settings, this function allows...individuals to personalize the taste of their coffee according to their preferences, providing additional customization features.

— Drink volume. Coffee makers offer the feature of selecting the desired volume of the final beverage according to individual preferences. Different models may have varying methods for making this choice. Some machines provide fixed settings (20 mL, 35 mL, etc.) from hich users can select their preferred option. Other models allow for manual adjustment of the volume, sometimes even allowing users to gauge it visually. This feature enables users to customize standard programs to their liking and provides opportunities for experimenting with unique recipes.

— Temperature control. Coffee makers offer the ability to regulate the water temperature for brewing coffee. The taste of the final beverage is heavily influenced by this factor. Higher temperatures result in a brighter and more intense flavor, but excessive heating (96 °C and above) can release compounds from the coffee that add bitterness. The optimal brewing temperature is generally considered to be within the range of 92 — 95 °C. However, coffee makers may provide a wider range of temperature adjustments. Some believe that even a difference of just 1 °C can significantly impact the properties of the coffee, making this adjustment essential for those who appreciate the subtle nuances of taste and aroma in their coffee.

— Steam pressure. Coffee makers offer the feature to adjust the steam pressure coming out of the panarello nozzle. This nozzle is used for frothing milk, especially when preparing cappuccino, as well as for heating milk. By modifying the steam outlet pressure, users can control the intensity of the steam and achieve varying foam densities. It also allows them to omit foam altogether if the intention is solely to heat the milk.

— Foam volume / density. For coffee and milk beverage enthusiasts, the ability to adjust the volume and thickness of the foam "cap" is highly useful. This feature is particularly valuable when preparing drinks like cappuccino, latte, and macchiato. The quality of the final beverage is influenced by the quantity and density of the foam. By customizing these parameters, users can tailor the drink to their personal taste preferences.

— Water hardness. Coffee makers offer the capability to adjust the settings based on the hardness of the water being used. Over time, the heating element of the coffee machine accumulates scale and requires regular cleaning or descaling. The rate of scale buildup increases with harder water, necessitating more frequent cleaning. However, the coffee machine evaluates the condition of the heating element not based on the actual scale amount, but by considering the water hardness setting and the duration of operation since the last cleaning. Therefore, it is crucial to correctly set the water hardness settings to receive timely notifications for descaling. Coffee machines equipped with this feature often include a water hardness indicator with four settings: very soft, soft, hard, and very hard.

The volume of the water tank provided in the coffee maker; for turkish electric coffee pot (see "Type"), this paragraph indicates the actual working volume of the turk.

The larger the tank, the more coffee you can make without refilling the device; on the other hand, a large capacity, respectively, affects the dimensions, weight and price of the device. Therefore, manufacturers select this parameter in accordance with the general level of the coffee maker and the features of its intended use. So, you rarely have to make more than two cups of coffee at the same time, and 300 – 400 mL for such cases is usually more than enough for home use. And for use in a coffee shop or restaurant, where coffee is made often and in large quantities, large-sized devices are produced, the volume of which is already calculated in liters; recommendations for choosing the volume of a coffee maker for professional use can be found in special sources.

The amount of coffee that can be loaded into the built-in coffee grinder at one time (see above). The larger the capacity of the coffee grinder, the less often it will have to be “reload” and the more coffee can be prepared at one “filling”. For ease of evaluation, we recall that it takes 7 g of coffee to prepare one standard portion of espresso.

The coffee maker has its own milk capacity. Technically, to prepare various types of coffee with milk, you don’t necessarily need your own container — you can use any tank with milk by lowering the straw from the coffee maker into it (or even prepare the milk separately and add it manually). At the same time, the presence of a special container usually means that the coffee maker has its own programs for preparing coffee with milk — cappuccino, latte, etc. (see "Provided programs"). In addition, your own milk tank is usually more convenient than third-party containers, and it takes up less space.