Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
A Lidlstore brand Nespresso-compatible coffee capsuleUsed Nespresso coffee capsules, showing the puncture holes in the top and bottom for mixing the product with water
A single-serve coffee container is a container filled with coffee grounds, used in coffee brewing to prepare only enough coffee for a single portion. Single-serve coffee containers come in various formats and materials, often either as hard and soft pods or pads made of filter paper, or hard aluminium and plastic capsules.
Single-serve coffee containers can both reduce the time needed to brew coffee and simplify the brewing process by eliminating the need to measure out portions, flavorings, and additives from large bulk containers. They can also help to keep the unused product fresher by individually packaging portions separately without exposing the entire supply batch to air and light. Paper coffee pods can be functionally identical to plastic and metal coffee capsules, if the paper pods are individually sealed in separate bags. At the same time, the disposablesingle-use products add to global waste production.
History
In 1958, the Flemish Rombouts coffee company launched its pre-filled One Cup Coffee Filter for the Brussels World Exhibition. Unlike newer capsules and pods, this system consists of a single-use drip coffee filter placed over the cup. In 1964, the company began marketing the concept, gaining success in the horeca and retail sectors. The company was founded in Antwerp in 1896, and in 1966 was appointed a "Certified Royal Warrant Holder of Belgium".
Variations
Several different systems exist:
Coffee pods or pads are pre-packaged ground coffee beans in their own filter.
A coffee capsule differs from a coffee pod in that the coffee is packed in a plastic or aluminum package instead of a paper filter, and it is usually designed for use with a single brand or system and is therefore not interchangeable with other systems. A patent on the Nespresso system expired at the end of 2012, and there are now rival capsules available for the Nespresso system.
A variation, coffee bags, were developed to provide the convenience of instant coffee but maintain the flavor of brewed coffee. Modeled after tea bags, they consist of a gauze bag containing a mixture of instant coffee and finely ground roast coffee, which is to be steeped in hot water for approximately three minutes.
Coffee (filter) disks or ground coffee filter rings are a ring-type variant of coffee bags made of coffee filter paper containing ground roast coffee for use in coffee percolators, which otherwise use permanent filters made out of metal or porcelain. One of the first companies to offer them was General Foods Corp. with their "Max-Pax" filter rings.
Disposable single serve drip coffee bagEspecially in East Asia disposable single serve drip coffee bags are common way to prepare drip coffee. The coffee is packed inside the device. There is typically perforated top edge which is peeled off to open the bag. The device contains cardboard supports to spread it over the cup. Hot water is poured from a kettle or anything that can boil the water until the lower edge of the bag gets in contact with the surface of the coffee. The benefit of this method is extremely low investment cost on equipment required to prepare decent coffee.
Photo of coffee bag manufactured by Folgers
A paper coffee bag by an unknown manufacturer - E.S.E. (Easy Serving Espresso Pod)
A Senseo ESE coffee pod, upside down
Used Lavazza BLUE coffee capsules, showing the puncture holes
Nespresso coffee capsules
Comparison of systems
The plastic and metal coffee capsules typically are used in a non-removable receptacle on the brewing device. The capsules have an outer ring or rim that stays dry during use, allowing for removal and disposal after use without getting the user's hands wet or sticky. Handling of a used moist coffee pod is not necessary if the brewing device has a removable filter tray. This tray is removed after brewing and inverted to eject the used coffee pod.
Coffee pods, bags, and capsules can be sized for individual or multi-serving portions. In food service businesses, pods and capsules used with automatic brewing can help to provide consistency of product strength and flavor for customers.
Paper coffee pods such as those used in Easy Serving Espresso Pod or Senseo machines have the benefit of being a fully biodegradable product that can decompose naturally, while plastic and metal capsules such as those used in Keurig or Nespresso machines either are not recyclable, or require additional processing to separate the plastic/metal container from the organic waste products.
Many capsule machines specifically warn the user to not disassemble the machine or put their fingers inside the capsule receptacle, as the devices commonly use sharp razor-edge tubes or prongs for piercing the coffee capsule during use.
Different single-cup systems are not interchangeable; some systems force machine owners to buy capsules from a single company (usually the patent owner), locking the machine owner into a single source of coffee. Coffee pods are made by a variety of manufacturers and are interchangeable between brand of pod and model of pod brewer most of the time.
Nestle vertical. Also brews cold beverages. Limited Edition machine designs also available. Rewards program.Capsule recycling programs exist in some countries.
Many. Keurig's private labels include but are not limited to Green Mountain Coffee Roasters, Revv, Tully's Coffee, and The Original Donut Shop Coffee. Several other companies have licensed Keurig's K-Cup design. Unauthorized clones exist.
United States, Canada
Capsule
Two versions of My K-Cup are available as a reusable filter for using any filter coffee, with the newest version being designed to be compatible with Keurig machines with MultiStream technology since the old version is incompatible. Keurig 2.0, an attempt to lock out unlicensed clones, has been withdrawn from the market. Genuine K-Cups from Keurig and licensed partners now carry 2D bar codes to allow smart brewers with BrewID technology to brew K-Cups with factory-customized brewing profiles. The patent on the original K-Cup design has expired, so unauthorized clones exist. K-Cups made since the end of 2020 are made with polypropylene to allow them to be recycled.
Compostable K-Cup clone
OneCoffee
2017
Many: Keurig, Cuisinart, BUNN etc.
Many, including OneCoffee and Club Coffee
United States, Canada
Capsule
A soft-bottomed pod that is designed to be compatible with any Keurig K-Cup machine. This is an unauthorized clone of the K-Cup.
K-Fee
Krüger Group
2010
Aldi Expressi, K Systems GMBH Preferenza
K-Fee, Paulig Cupsolo, Mr. and Mrs. Mill (Krüger Group), Milky Moo (Krüger Group), formerly Starbucks (K-Fee was formerly rebranded as Starbucks Verismo in the United States)
United States, Europe, Australia
Capsule
Physically compatible with CaffeItaly machines/pods
In 1976, Eric Favre, an employee of Nestlé, invented, patented, and introduced the Nespresso system Formerly a Nestle-controlled system until the patent expired, so unauthorized clones exist. Recyclable. Capable of brewing smaller sized coffees such as espresso or lungo.
United States, Canada, France, United Kingdom, Australia, Japan
Capsule
Nestle-controlled system. Recyclable. Capable of brewing espressos, much larger coffees, and sizes in between. Uses a barcode under the capsule's ring to customize the brew to factory-designed brewing profiles.
JDE Peet's and Kraft Heinz (in Canada. Formerly United States)
Canada, Mexico, Europe. Fully withdrawn from United States. Brewing machines were withdrawn from sale in Canada, but T-Discs continue to be sold in Canada.
Capsule
—
Environmental impact
Environmental activists have said that single-use coffee pods are harmful, as they are often composed of a mix of plastic, aluminium, and organic material (the used coffee) which makes them difficult to recycle. In early 2016 the German city of Hamburg banned coffee capsules from state-run buildings on environmental grounds. There are some capsules that are plant-based and that can be compostable as bio-waste.
Photo of coffee bag manufactured by Folgers
A paper coffee bag by an unknown manufacturer - E.S.E. (Easy Serving Espresso Pod)
A Senseo ESE coffee pod, upside down
Used Lavazza BLUE coffee capsules, showing the puncture holes
Nespresso coffee capsules
