Embodiments of the present disclosure include a matrix of raw materials, also referred to as a poly-grain grind matrix. In some embodiments, the matrix of raw materials may form an interlocking network of varied particle grind sizes that allows the particles to nest and interlock with one another when packed into an extraction vessel, so that most, but not all of the interstitial spacing within the matrix of raw materials is closed. Additionally, the varied particle sizes may be selected by pre-determined weight ranges and size classifications so that the particle grind sizes achieve the desired consistency uniformity. This may allow the network of particles to act as its own best filtering agent during the extraction process. Moreover, the nesting and interlocking network of the particles within the matrix of raw materials may allow the particles to be effectively packed within the extraction column, thus allowing for an efficient and high quality extraction to be performed consistently each and every time.

Embodiments of the present disclosure include a matrix of raw materials, also referred to as a poly-grain grind matrix. In some embodiments, the matrix of raw materials may form an interlocking network of varied particle grind sizes that allows the particles to nest and interlock with one another when packed into an extraction vessel, so that most, but not all of the interstitial spacing within the matrix of raw materials is closed. Additionally, the varied particle sizes may be selected by pre-determined weight ranges and size classifications so that the particle grind sizes achieve the desired consistency uniformity. This may allow the network of particles to act as its own best filtering agent during the extraction process. Moreover, the nesting and interlocking network of the particles within the matrix of raw materials may allow the particles to be effectively packed within the extraction column, thus allowing for an efficient and high quality extraction to be performed consistently each and every time.

A tamping augur may be controlled in various ways to obtain a consistent fill height and uniformity in the distribution of coffee grinds in a portafilter. Improvements to a conical burr grinder are also disclosed.

A tamping augur may be controlled in various ways to obtain a consistent fill height and uniformity in the distribution of coffee grinds in a portafilter. Improvements to a conical burr grinder are also disclosed.

A beverage dispenser, in which a filter is arranged between the lower end of a brewing chamber and an upper end of a fluid receptacle. A beverage brewed by supplying a raw material and water to the chamber is forced to drip into the fluid receptacle through the filter F, and delivered to a cup along a beverage path. The beverage dispenser includes: a pressure difference generator for generating a pressure difference between the chamber and the fluid receptacle to force the beverage to drip into the fluid receptacle, and to deliver the beverage to the cup; a pressure sensor for measuring the pressures in the fluid receptacle or in the chamber; and a controller that sequentially determines an interval average for pressure measured by the pressure sensor, and halts, based on results of the interval averages, a drip-brewing and delivering operation for the beverage.

This disclosure provides methods and apparatus for a beverage brewer. The beverage brewer including a burner, a reservoir, a controller, and a thermoelectric generator. The burner produces combustible heat across a surface. The reservoir stores a brewing fluid. The controller controls a brewing process. The thermoelectric generator is structured with a supply side, a waste side and a power output. The supply side is directed towards the surface of the burner. The waste side contacts the reservoir. The power output powers the controller.

This disclosure provides methods and apparatus for a beverage brewer. The beverage brewer including a burner, a reservoir, a controller, and a thermoelectric generator. The burner produces combustible heat across a surface. The reservoir stores a brewing fluid. The controller controls a brewing process. The thermoelectric generator is structured with a supply side, a waste side and a power output. The supply side is directed towards the surface of the burner. The waste side contacts the reservoir. The power output powers the controller.

An apparatus for providing an infused or brewed beverage comprises a brewing arrangement which is configured to brew a beverage according to a selected one of a plurality of brewing processes, at least one being a hot brewing processes and at least one being a cold brewing process. The apparatus includes a controller configured to receive a user selection indicative of a required beverage, and to control the brewing arrangement in dependence upon the user selection. The apparatus may for example be used to provide either hot brew or cold brew coffee as required, without the need for multiple machines.

A method for preparing a coffee drink is provided in which, in a brewing process, a pre-specifiable total amount of brewing water is conducted through an amount of powdered coffee. In order to improve the tasting quality of freshly-brewed coffee drinks while, at least, increasing the uniformity of taste characteristics in successively prepared coffee drinks, a total through-flow time for the brewing process is or can be predefined in which the total amount of brewing water is conducted through an amount of powdered coffee.

A system and method are provided for extracting compounds from raw materials packed into an extraction column. The system may include a flowing solvent source connected to an extraction column to provide a flow of solvent for extracting the raw materials. The system may also include an electrodeionizer to separate positive ions and negative ions within the flowing solvent to create an imbalance of ions and transform the solvent to a deionized solvent. In further embodiments, the extraction column includes a solvent surface layer in contact with a bed of raw materials, such that the hydraulic pressure applied within the extraction column results in the formation of catalyzing energy to generate a self-perpetuating energy cycle to extract the raw materials.