The coffee grinder brush has been around for decades, and its basic principle hasn't changed much over the years. It basically consists of a steel stick that you use to push the ground coffee up through the filter of your espresso machine. The only real difference is that now the coffee is pushed through a finer mesh than the one that's used in the traditional machines. In the end you are left with a drink that is just as rich and delicious as a traditionally made pot of the same grind.
So what does this all have to do with the milk pitcher? Well the coffee tool and the milk pitcher are actually very related. If you go into a coffee shop you will most likely see two stand alone espresso machines on the shelves. One of them will probably be the milk pitcher. The difference is that the milk pitcher doesn't have a mesh filter that would normally come with the coffee making tool. It's simply designed to catch the milk when it comes out of the machine and this is how it gets its name. Here is some information about this company.
Over time the coffee tool has evolved into what many espresso machine group heads call a "sink". Basically this means that you can make a cup of coffee without having to add any water or milk to the coffee. This is the smarter way to brew a cup of coffee because there is no need for you to make a second or third pot of coffee if you don't like it. You can just keep the first one hot and your second one will be warm just as quickly. This is the perfect way to enjoy a cold coffee when you are up late studying for an exam.
There are some coffee tools that have a patented design where the actual glass carafe does not have a mesh filter. These coffee tools are called the Espresso Nautilus and the patented design allows for smooth drinking without any carafes to drip over the top. The Nautilus is the most recommended Espresso Machine amongst Espresso Machine group heads because it does not require the use of a carafe. A carafe can actually cause spotting on colored drinks, so Nautilus makes for a much cleaner and neat-looking cup of coffee.
The last coffee tool in the list is the Barista Espresso Milk Pitcher/ Brewer. The Barista Espresso Milk Pitcher/ Brewer is the most popular of all three tools. It utilizes the patented Barista technology which allows the user to brew espresso, coffee, tea, cappuccino or chocolate with their own pressurized wand. Some of the other features include a built-in milk frother, reusable rubber ring for stirring, and a built-in ice maker.
There are many different types of barista tools that make brewing coffee fast and easy. If you are going to be drinking espresso then a very good choice is a Nautilus Espresso Machine.
If you want to drink a variety of different kinds of coffee then an ideal choice would be a Barista Tumbler. If you just want to make a simple latte and would not consider spending money on other espresso machines then a simple Barista Espresso Machine would be your best choice. You could also buy a nice little espresso machine if you are a home barista and enjoy preparing simple espressos at home.
To get more details about this topic,see here: https://en.wikipedia.org/wiki/Espresso_machine.