Patent US3934046A successfully refreshed from Google Patents.
US3934046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water leaching pre-fried potato slices
Assignee: United States Department of Agriculture
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Filing: 1973-04-06
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Granted: 1976-01-20
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Expires: 1993-04-06
Abstract
Abstract The invention enables the production of fried potato products of greatly improved texture, flavor, and color from raw stock that exhibits excessive browning tendencies and which would normally yield fried products of excessively dark color. Typically, pieces of raw potato are pre-fried in edible oil for a short period, then leached with water. The leached pieces may be further processed in various ways, e.g., finish-fried, or par-fried and then refrigerated for distribution to the consumer or food service operator.
Inventors
- 👤 Merle L. Weaver
- 👤 Masahide Nonaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:27
CPC Classifications
A; A23; A23L; A23L19/00; A23L19/10; A23L19/12; A23L19/18
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
95 words
A process for enabling the preparation of fried potato products of improved properties from raw potato pieces which exhibit excessive browning tendencies, which comprises - a. pre-frying pieces of raw potato in oil at a temperature about from 325° to 375°F. for a time which is not long enough to cause said pieces to turn brown and which falls within the range of about 5 to 120 seconds, and b. leaching the pre-fried pieces in water for a period about from 1 to 30 minutes, and c. preparing said leached slices for consumption by frying.
Claim 2
Dependent Claim
95 words
A process for enabling the preparation of fried potato products of improved properties from raw potato pieces which exhibit excessive browning tendencies, which comprises - a. pre-frying pieces of raw potato in oil at a temperature about from 325° to 375°F. for a time which is not long enough to cause said pieces to turn brown and which falls within the range of about 5 to 120 seconds, and b. leaching the pre-fried pieces in water for a period about from 1 to 30 minutes, and c. preparing said leached slices for consumption by frying.
Claim 3
Dependent Claim
31 words
The process of claim 1 wherein the potato pieces are slices having a thickness of about 0.05 to 0.07 inch, and wherein the pre-frying is for about 5 to 60 seconds.
Claim 4
Dependent Claim
34 words
The process of claim 1 wherein the potato pieces are strips having a square cross-section about 3/16 to 1/2 inch on a side, and wherein the pre-frying is for about 15 to 120 seconds.
Claim 5
Dependent Claim
130 words
A process for preparing a stock for the production of French-fries from raw potato pieces which exhibit excessive browning tendencies, which comprises - a. cutting raw potatoes into strips, b. pre-frying the raw potato strips in oil at a temperature about from 325° to 375°F. for a time which is not long enough to cause said pieces to turn brown and which falls within the range of about 15 to 120 seconds, c. leaching the pre-fried strips in water for a period about from 1 to 30 minutes, d. surface-drying the leached strips, e. refrigerating the surface-dried strips to a temperature of about 40°F. or below, and f. holding the refrigerated strips at a temperature of about 40°F. or below until they are to be prepared for consumption by frying.
Claim 6
Dependent Claim
130 words
A process for preparing a stock for the production of French-fries from raw potato pieces which exhibit excessive browning tendencies, which comprises - a. cutting raw potatoes into strips, b. pre-frying the raw potato strips in oil at a temperature about from 325° to 375°F. for a time which is not long enough to cause said pieces to turn brown and which falls within the range of about 15 to 120 seconds, c. leaching the pre-fried strips in water for a period about from 1 to 30 minutes, d. surface-drying the leached strips, e. refrigerating the surface-dried strips to a temperature of about 40°F. or below, and f. holding the refrigerated strips at a temperature of about 40°F. or below until they are to be prepared for consumption by frying.
Claim 7
Dependent Claim
138 words
A process for preparing French-fries from raw potato pieces which exhibit excessive browning tendencies, which comprises - a. cutting raw potatoes into strips, b. pre-frying the raw potato strips in oil at a temperature about from 325° to 375°F. for a time which is not long enough to cause said pieces to turn brown and which falls within the range of about 15 to 120 seconds, c. leaching the pre-fried strips in water for a period about from 1 to 30 minutes, d. par-frying the leached strips in hot oil at about 355° to 370°F for about 30 to 90 seconds, e. refrigerating the par-fried strips to a temperature of about 40°F. or below, and f. holding the refrigerated strips at a temperature of about 40°F. or below until they are to be prepared for consumption by frying.
Claim 8
Dependent Claim
138 words
A process for preparing French-fries from raw potato pieces which exhibit excessive browning tendencies, which comprises - a. cutting raw potatoes into strips, b. pre-frying the raw potato strips in oil at a temperature about from 325° to 375°F. for a time which is not long enough to cause said pieces to turn brown and which falls within the range of about 15 to 120 seconds, c. leaching the pre-fried strips in water for a period about from 1 to 30 minutes, d. par-frying the leached strips in hot oil at about 355° to 370°F for about 30 to 90 seconds, e. refrigerating the par-fried strips to a temperature of about 40°F. or below, and f. holding the refrigerated strips at a temperature of about 40°F. or below until they are to be prepared for consumption by frying.
Claim 9
Dependent Claim
107 words
A process for preparing potato chips from raw potato pieces which exhibit excessive browning tendencies, which comprises - a. cutting raw potatoes into slices having a thickness of about 0.05 to 0.07 inch, b. pre-frying the raw potato slices in oil at a temperature time which is not long enough to cause said pieces to turn brown and which falls within the range of about from 325° to 375°F. for a about 5 to 60 seconds, c. leaching the pre-fried slices in water for a period about from 1 to 30 minutes, and d. preparing said leached slices for consumption by finish-frying said slices in hot oil.
Claim 10
Dependent Claim
107 words
A process for preparing potato chips from raw potato pieces which exhibit excessive browning tendencies, which comprises - a. cutting raw potatoes into slices having a thickness of about 0.05 to 0.07 inch, b. pre-frying the raw potato slices in oil at a temperature time which is not long enough to cause said pieces to turn brown and which falls within the range of about from 325° to 375°F. for a about 5 to 60 seconds, c. leaching the pre-fried slices in water for a period about from 1 to 30 minutes, and d. preparing said leached slices for consumption by finish-frying said slices in hot oil.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-19 | 1979-07-21 | 1980-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-19 | 1983-07-21 | 1984-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-19 | 1987-07-21 | 1988-01-20 | $7700.00 | Window Closed / Lapsed |