Abstract:
A method and lauter tun for lautering wort includes a fluid gaseous medium introduced as a false bottom seal below a false bottom-of the lauter tun prior to lautering of the wort through the false bottom. The mash is transferred into the lauter tun above the false bottom after introduction of the false bottom seal. Wort running off in the lauter tun through the false bottom displaces the false bottom seal.
Abstract:
The present invention provides a continuous method of preparing a liquid extract of cereal grain by comminuting cereal grain at a rate of at least 100 kg of dry cereal grain per hour and extracting the comminuted cereal grain with a liquid, said method comprising: continuously combining cereal grain with a liquid; continuously disintegrating the grain particles contained within the liquid by colliding freely suspended grain particles with one or more rotating blades, thereby producing a milled suspension; continuously transferring at least a part of the milled suspension, optionally after further treatment, to a separation device for separation into spent grain and liquid extract; wherein the one or more rotating blades are rotating at a tip speed of at least 10 m/s; the total mechanical energy transferred into the milled suspension by the one or more rotating blades is in the range of 5-1000 kJ per kg of dry cereal grain; and the distance between a tip of said one or more rotating blades and the axis of rotation is in the range of 2-25 cm. The invention also provides a system for comprising a milling apparatus and a separation device suitable for use in the aforementioned method.The present method and system offer several advantages, including savings on capital expenditure and maintenance, short milling times and hygienic design.
Abstract:
A whirlpool with an inner chamber for hot break separation by means of the whirlpool effect. In order to remove undesired volatile substances from the wort in a simple manner, the whirlpool comprises an integrated stripper, which has an outer chamber arranged around the inner chamber, for evaporating undesired volatile substances from the wort that has been transferred from the inner chamber.
Abstract:
One aspect of the present invention relates to a method of producing a mash extract, said method comprising: a. mashing particulate, starch-containing and optionally malted raw materials with a recirculated aqueous stream; b. heating the mash and enzymatically hydrolysing the starch; c. transferring the heat-treated mash into a first separator for separation into mash extract and spent grain; d. transferring the spent grain into a first mixing vessel and mixing it with sparging water; e. transferring the mixture of spent grain and sparging water into a second separator to remove spent grain; f. recirculating an aqueous stream from the second separator to the mashing step, wherein the gravity of the fermentable mash extract obtained from the first separator is maintained at above 15° P. The present method offers the advantage that it is highly efficient in terms of energy consumption and extraction yields. Furthermore, the present method achieves extremely high productivity in the operation of the brewhouse.The invention also provides an apparatus for carrying out the aforementioned method.
Abstract:
Slurry containing solid to be "extracted" is introduced to the top of a tower (1), the Fig. (not shown) at (3) and extracting liquid to the bottom of the tower at (7). Desired extract is withdrawn through an annular filter screen (2) (surrounding the tower near its top) to a tank (5). At intervals, and for a short space of time, outlet valve (9) from tank (5) is closed and the contents of tank (5) are discharged back through screen (2) to remove filter cake. At the same time a large amount of "extracted" solids and liquid is discharged from the tower base. Instead of, or together with, discharge of solids from the tower base, a large amount of slurry may be introduced at (3). Preferably the liquid part of the slurry is extract previously withdrawn. The slurry may be fibres from a cellulose digestion process suspended in waste liquor; or beet chips suspended in unrefined juice, or sand mixed with oil (extracting liquid; solvent). Bone meal or ores may be leached with water or dilute acids; filter agents such as diatomaceous earth may be washed.
Abstract:
A process for brewing sour beer includes:
heating milled grain, water and enzymes to produce a mash; then
combining the mash with hot water to produce a wort; then combining the wort with bioacid in a sour tank and heating the wort to produce a soured wort; then transferring the soured wort to a kettle; heating the soured wort in the kettle; then removing particulate matter from the soured wort; then transferring the soured wort to a cellar.
Abstract:
A method and lauter tun for lautering wort includes a fluid gaseous medium introduced as a false bottom seal below a false bottom-of the lauter tun prior to lautering of the wort through the false bottom. The mash is transferred into the lauter tun above the false bottom after introduction of the false bottom seal. Wort running off in the lauter tun through the false bottom displaces the false bottom seal.
Abstract:
A whirlpool with an inner chamber for hot break separation by means of the whirlpool effect. In order to remove undesired volatile substances from the wort in a simple manner, the whirlpool comprises an integrated stripper, which has an outer chamber arranged around the inner chamber, for evaporating undesired volatile substances from the wort that has been transferred from the inner chamber.