GB1347984A - Process for freeze drying coffee - Google Patents

Process for freeze drying coffee

Info

Publication number
GB1347984A
GB1347984A GB4523471A GB4523471A GB1347984A GB 1347984 A GB1347984 A GB 1347984A GB 4523471 A GB4523471 A GB 4523471A GB 4523471 A GB4523471 A GB 4523471A GB 1347984 A GB1347984 A GB 1347984A
Authority
GB
United Kingdom
Prior art keywords
coffee
drying
microns
pressure
cycle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4523471A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Foods Corp
Original Assignee
General Foods Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Foods Corp filed Critical General Foods Corp
Publication of GB1347984A publication Critical patent/GB1347984A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
    • A23F5/00—Coffee; Coffee substitutes; Preparations thereof
    • A23F5/24—Extraction of coffee; Coffee extracts; Making instant coffee
    • A23F5/28—Drying or concentrating coffee extract
    • A23F5/32—Drying or concentrating coffee extract by lyophilisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • F26B5/06—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum the process involving freezing

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Tea And Coffee (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)

Abstract

1347984 Freeze-drying coffee GENERAL FOODS CORP 28 Sept 1971 [8 Oct 1970] 45234/71 Heading F4G [Also in Division A2] In a method for obtaining darkened freezedried coffee, coffee extract is frozen, ground and dried by sublimation in a vacuum at a pressure of 350 to 650 microns of mercury for the initial 1 to 5 hours of the drying cycle, and at a pressure less than 300 microns for the remainder of the cycle. The pressure, which is preferably in the range 400 to 500 microns, may be thus maintained for the first quarter to half of the drying cycle. Particles of the ground frozen extract which pass through a 40 mesh screen may be removed prior to drying.
GB4523471A 1970-10-08 1971-09-28 Process for freeze drying coffee Expired GB1347984A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7934070A 1970-10-08 1970-10-08

Publications (1)

Publication Number Publication Date
GB1347984A true GB1347984A (en) 1974-02-27

Family

ID=22149906

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4523471A Expired GB1347984A (en) 1970-10-08 1971-09-28 Process for freeze drying coffee

Country Status (6)

Country Link
AU (1) AU451215B2 (en)
CA (1) CA969024A (en)
DE (1) DE2150037A1 (en)
ES (1) ES395807A1 (en)
FR (1) FR2110310B1 (en)
GB (1) GB1347984A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11505118A (en) * 1995-05-16 1999-05-18 ドクター オットー スウェラック ナッハフォルガー ゲーエムベーハー ウント カンパニー Freeze drying method of coffee extract
ES2929672B2 (en) * 2021-05-31 2023-08-07 Fundacion Univ San Antonio Ucam PROCEDURE FOR OBTAINING A SOLID FOOD INGREDIENT BASED ON COFFEE, FOOD INGREDIENT SO OBTAINED AND USE OF SAME
CN113424980B (en) * 2021-06-22 2023-03-17 云南中烟新材料科技有限公司 Preparation method and application of coffee tobacco flavor

Also Published As

Publication number Publication date
DE2150037A1 (en) 1972-04-13
FR2110310B1 (en) 1974-03-29
ES395807A1 (en) 1973-12-01
AU451215B2 (en) 1974-08-01
AU3394371A (en) 1973-04-05
FR2110310A1 (en) 1972-06-02
CA969024A (en) 1975-06-10

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees