Potato Varieties for Industrial Processing: Atlantic, Shepody, and Russet Burbank¶
Document Reference: HJ-TD-VB-001
Version: 1.0
Date: July 2026
Author: Hongji Agriculture Technology Documentation Division
Classification: Technical Reference — Open Distribution for B2B Partners
1. Introduction¶
The selection of raw potato varieties is the single most critical determinant of final product quality in the potato processing industry. For manufacturers of potato flakes (instant mashed potatoes), french fries, chips, and starch, the choice of cultivar directly influences processing yield, energy consumption, color uniformity, texture, and shelf stability.
Hongji Agriculture (弘基农业), headquartered in Zhangjiakou, Hebei Province, operates an integrated value chain spanning proprietary seed breeding, contract farming across the Inner Mongolia—Hebei plateau, and advanced processing facilities capable of producing high-quality potato flakes and potato powder. The company's primary processing varieties are Atlantic, Shepody, and Russet Burbank — three cultivars that, while distinct in origin and characteristics, collectively serve the full spectrum of industrial processing requirements.
This document provides a comprehensive technical comparison of these three varieties, covering breeding history, morphological traits, agronomic performance, processing suitability, and end-product quality attributes.
2. Variety Origins and Breeding History¶
2.1 Atlantic¶
| Attribute | Detail |
|---|---|
| Breeder | USDA-ARS / Frito-Lay Inc., USA |
| Year of Release | 1976 |
| Pedigree | Wauseon × B5141-6 (Lenape descendant) |
| Plant Variety Protection | Expired (public domain) |
| Primary Breeder | Dr. Robert Webb, USDA Beltsville |
Atlantic was developed through a cooperative breeding program between the USDA Agricultural Research Service and Frito-Lay. Its parentage traces back to Lenape (B5141-6), a variety that was withdrawn from the table-stock market due to glycoalkaloid concerns but whose exceptional processing characteristics were inherited by Atlantic. The cross Wauseon × B5141-6 produced a round-oval, white-skinned variety with exceptional dry matter content and low reducing sugars — hallmarks of chip-processing excellence. Atlantic was released in 1976 and rapidly became the North American standard for potato chip manufacturing. It was introduced to China in the late 1990s and is now one of the most widely cultivated processing varieties in Hebei, Inner Mongolia, and Heilongjiang.
2.2 Shepody¶
| Attribute | Detail |
|---|---|
| Breeder | Agriculture and Agri-Food Canada (AAFC) — Fredericton Research Station |
| Year of Release | 1980 |
| Pedigree | Bake-King × F58050 |
| Plant Variety Protection | Expired |
| Geographic Adaptation | Temperate, long-day regions |
Shepody was developed by the Canadian federal potato breeding program in Fredericton, New Brunswick. The cross Bake-King × F58050 was designed to produce a long, uniform tuber with shallow eyes and excellent french fry processing qualities. Shepody became the benchmark variety for frozen french fry production throughout Canada and the northern United States. It was introduced to China in the early 2000s and adapted well to the growing conditions of the Hebei—Inner Mongolia belt, where day length and temperature profiles during the growing season closely mirror those of its native Maritime Canada.
2.3 Russet Burbank¶
| Attribute | Detail |
|---|---|
| Breeder | Luther Burbank, USA |
| Year of Release | 1914 (as Burbank); Russet mutation selected ~1920s |
| Pedigree | Sport mutation of Burbank (Early Rose seedling) |
| Plant Variety Protection | Expired (public domain, over 100 years old) |
| Global Significance | Most widely grown processing potato in the world |
Russet Burbank is a russet-skinned sport (natural mutation) of the earlier Burbank variety, which was itself selected by Luther Burbank from a seedling of Early Rose. This variety has been in commercial cultivation for over a century and remains the dominant processing potato for french fry production globally, particularly in the Pacific Northwest of the United States and in China's primary potato-growing regions. Despite its age, Russet Burbank's combination of long tuber shape, high dry matter, and excellent storage characteristics has made it nearly irreplaceable for large-scale industrial fry processing. It was introduced to China in the 1980s and is now widely grown in Hebei, Inner Mongolia, Gansu, and Yunnan provinces.
3. Morphological Characteristics¶
3.1 Tuber Shape and External Features¶
| Characteristic | Atlantic | Shepody | Russet Burbank |
|---|---|---|---|
| Tuber Shape | Round to round-oval | Long, cylindrical to slightly flattened | Long, cylindrical, slightly flattened |
| Tuber Length (typical) | 50–70 mm | 80–120 mm | 80–130 mm |
| Tuber Width (typical) | 50–70 mm | 50–65 mm | 50–70 mm |
| Skin Color | Buff/light tan | White to cream | Russet brown (netted) |
| Skin Texture | Smooth to slightly scaly | Smooth | Heavy russet/netting |
| Flesh Color | White | White to cream | White |
| Eye Depth | Shallow to medium | Shallow | Medium |
| Tuber Number per Plant | 8–14 | 7–12 | 6–10 |
| Tuber Size Uniformity | High | Medium–high | Medium |
3.2 Shoot and Foliage Characteristics¶
| Characteristic | Atlantic | Shepody | Russet Burbank |
|---|---|---|---|
| Growth Habit | Semi-erect | Semi-erect to spreading | Spreading |
| Stem Thickness | Medium–thick | Medium | Medium–thick |
| Leaf Color | Medium green | Light green | Medium–dark green |
| Leaf Type | Open | Intermediate | Closed |
| Flower Color | White | White | White-purple (variable) |
| Maturity (days after emergence) | 90–110 (early-mid) | 95–115 (mid) | 120–140 (late) |
4. Agronomic Performance¶
4.1 Growth Period and Regional Adaptation (Zhangjiakou Context)¶
| Parameter | Atlantic | Shepody | Russet Burbank |
|---|---|---|---|
| Days to Emergence | 18–25 | 20–28 | 22–30 |
| Days to Full Canopy | 45–55 | 50–60 | 55–65 |
| Days to Senescence | 90–110 | 95–115 | 120–140 |
| Optimal Planting Window (Hebei) | Mid-April to early May | Mid-April to early May | Late April to mid-May |
| Optimal Harvest Window | Mid-August to early September | Late August to mid-September | Mid-September to early October |
| Heat Stress Tolerance | Moderate | Low | Low–moderate |
| Drought Tolerance | Moderate | Low | Moderate |
4.2 Disease Resistance Profile¶
| Disease | Atlantic | Shepody | Russet Burbank |
|---|---|---|---|
| Late Blight (Phytophthora infestans) | Susceptible | Susceptible | Highly Susceptible |
| Early Blight (Alternaria solani) | Moderately Susceptible | Susceptible | Susceptible |
| Common Scab (Streptomyces scabies) | Moderately Resistant | Susceptible | Susceptible |
| PVY (Potato Virus Y) | Susceptible | Moderately Susceptible | Susceptible |
| PLRV (Potato Leafroll Virus) | Susceptible | Susceptible | Susceptible |
| Verticillium Wilt | Moderately Susceptible | Susceptible | Highly Susceptible |
| Fusarium Dry Rot | Moderately Resistant | Susceptible | Moderately Susceptible |
| Powdery Scab | Susceptible | Moderately Susceptible | Susceptible |
| Nematode (Globodera pallida) | Susceptible | Susceptible | Susceptible |
4.3 Yield Potential¶
| Parameter | Atlantic | Shepody | Russet Burbank |
|---|---|---|---|
| Marketable Yield (t/ha) — Hebei | 35–50 | 30–45 | 35–55 |
| Marketable Yield (t/ha) — Potential | 55 (irrigated, optimal) | 50 (irrigated, optimal) | 65 (irrigated, optimal with 140-day season) |
| Tuber Size Distribution | Medium, uniform | Long, variable | Long, variable |
| Oversize Proportion (>300g) | Low (<10%) | Moderate (15–25%) | Moderate–high (20–35%) |
| Specific Gravity Range | 1.080–1.100 | 1.075–1.095 | 1.080–1.105 |
5. Processing Suitability — Detailed Technical Comparison¶
5.1 Key Quality Parameters for Industrial Processing¶
The following table presents the definitive technical comparison of quality parameters critical to industrial processing:
| Quality Parameter | Atlantic | Shepody | Russet Burbank | Industrial Target Range |
|---|---|---|---|---|
| Dry Matter Content (%) | 20.0–24.0 | 19.0–23.0 | 20.0–24.5 | >20.0 for flakes; >19.5 for fries |
| Reducing Sugars (mg/g fresh weight) | 0.10–0.30 | 0.15–0.40 | 0.10–0.35 | <0.30 for chips; <0.50 for fries |
| Starch Content (% fresh) | 14.0–18.0 | 13.0–16.5 | 14.0–18.5 | >14.0 |
| Protein Content (% DW) | 4.0–5.5 | 4.5–6.0 | 4.5–5.5 | 4.0–6.0 |
| Ash Content (% DW) | 2.5–3.5 | 3.0–4.0 | 2.5–3.5 | 2.5–4.0 |
| Specific Gravity | 1.080–1.100 | 1.075–1.095 | 1.080–1.105 | >1.080 |
| Black Spot Bruise Index (1–5) | 2–3 (low–moderate) | 3–4 (moderate–high) | 3–4 (moderate–high) | <3 preferred |
| After-Cooking Darkening (ACD) | Low | Low–moderate | Moderate | Low preferred |
| Glycoalkaloid Content (mg/100g) | 5–12 | 4–10 | 5–15 | <20 (safe limit) |
| Flesh Color (raw) | White | White–cream | White | White preferred for flakes |
| Fry Color (after 3 min @ 180°C) | Light golden (USDA 0–1) | Golden (USDA 1–2) | Light golden (USDA 0–1) | USDA ≤2 |
| Chip Color | Excellent (Agtron >60) | Good (Agtron 50–60) | Good (Agtron 50–60) | Agtron >55 |
| Sloughing (texture breakdown) | Low | Low–moderate | Low | Low preferred |
| Reducing Sugar Accumulation (storage @ 8–10°C) | Slow | Moderate | Moderate | Slow preferred |
5.2 Processing Product Suitability Matrix¶
| End Product | Atlantic | Shepody | Russet Burbank |
|---|---|---|---|
| Potato Flakes (Instant Mashed) | ⭐⭐⭐⭐⭐ Gold Standard | ⭐⭐⭐ (Suitable with blending) | ⭐⭐⭐⭐ (Excellent with longer season) |
| Potato Powder | ⭐⭐⭐⭐⭐ Excellent | ⭐⭐⭐ (Good) | ⭐⭐⭐⭐ (Excellent) |
| French Fries (Straight Cut) | ⭐⭐⭐ (Acceptable, not ideal shape) | ⭐⭐⭐⭐⭐ Gold Standard | ⭐⭐⭐⭐⭐ Gold Standard |
| Potato Chips/Crisps | ⭐⭐⭐⭐⭐ Industry Benchmark | ⭐⭐ (Shape unsuitable) | ⭐⭐ (Shape unsuitable) |
| Dehydrated Granules | ⭐⭐⭐⭐⭐ Excellent | ⭐⭐⭐ (Good) | ⭐⭐⭐⭐ (Very good) |
| Starch Extraction | ⭐⭐⭐⭐ (Good, high starch) | ⭐⭐⭐ (Moderate starch) | ⭐⭐⭐⭐ (Good, high starch) |
| Air-dried Slices/Flakes | ⭐⭐⭐⭐ (Excellent quality) | ⭐⭐⭐ (Good) | ⭐⭐⭐⭐ (Very good) |
6. Processing Mechanism Deep-Dive¶
6.1 Dry Matter and Water Absorption in Flake Production¶
For potato flake manufacturing, dry matter content is the primary efficiency driver. A 1% increase in dry matter (e.g., from 21% to 22%) yields approximately 4.5–5% more finished flakes per ton of raw potatoes, significantly reducing steam peeling losses, drying energy, and wastewater load. Atlantic's 20–24% dry matter range makes it the preferred variety for flake operations.
During the flaking process: - Rehydrated mash must achieve 75–78% moisture for proper drum drying - Higher native dry matter means less added water and less energy for evaporative drying - Atlantic requires 15–18% less drying energy per ton of flake output compared to varieties at 18% dry matter
6.2 Reducing Sugars and the Maillard Reaction¶
The reducing sugar content (primarily glucose and fructose) controls the Maillard browning reaction during high-temperature processing. For flake production, reducing sugar levels below 0.30 mg/g fresh weight (FW) ensure a light cream-to-white finished product. When reducing sugars exceed 0.40 mg/g FW, the resulting flakes exhibit undesirable tan-to-brown coloration and potential bitter flavor notes.
Atlantic's genetically fixed low reducing sugar characteristic, combined with its slow accumulation of sugars during low-temperature storage (8–10°C), gives processors a wider operational window. This is particularly valuable in Zhangjiakou's climate, where long cold storage periods (October–May) are standard practice.
6.3 Black Spot Bruise Mechanism¶
Black spot (also known as black spot bruise or internal bruising) results from the oxidation of tyrosine and other phenolic compounds by polyphenol oxidase (PPO) following mechanical damage during harvest and handling. Varieties differ in their susceptibility based on:
- Tuber shape: Round tubers (Atlantic) have lower impact vulnerability than long tubers (Shepody, Russet Burbank)
- Specific gravity: Higher specific gravity correlates with increased bruise susceptibility
- Tyrosine concentration: Higher levels increase black spot risk
- Maturity at harvest: Immature tubers bruise more easily
Atlantic exhibits low-to-moderate black spot susceptibility, making it advantageous for less capital-intensive handling lines. Russet Burbank and Shepody require more careful harvest management, including: - Soil temperature at harvest > 10°C - Harvester chain speed optimization - Drop height limitation (< 30 cm transfers) - Cushioning on all impact surfaces
7. Storage Considerations¶
| Storage Parameter | Atlantic | Shepody | Russet Burbank |
|---|---|---|---|
| Optimal Storage Temperature (°C) | 8–10 | 7–9 | 7–9 |
| Optimal Relative Humidity (%) | 90–95 | 90–95 | 90–95 |
| Curing Period (days @ 12–15°C) | 10–14 | 10–14 | 14–21 |
| Maximum Storage Duration (months) | 7–9 | 6–8 | 8–10 |
| Reconditioning Potential (20°C, 1–3 weeks) | Excellent | Moderate | Good |
| Sprout Inhibition (CIPC/MHN) | Effective | Effective | Effective |
| Sugar Accumulation Rate (per month @ 8°C) | 0.02–0.04 mg/g | 0.04–0.07 mg/g | 0.03–0.06 mg/g |
8. Conclusion and Recommendations for Industrial Processors¶
For potato flake and powder manufacturing, Atlantic remains the gold-standard variety due to its superior dry matter content, low reducing sugars, and favorable black spot resistance. Hongji Agriculture utilizes Atlantic as its primary processing variety for high-end flake products.
For complementary blending to optimize cost profiles and texture attributes, Shepody provides acceptable quality when seasonally available, while Russet Burbank offers excellent yield and storage longevity for extended processing campaigns.
The recommended blending ratios for flake production at Hongji Agriculture facilities are:
| Product Tier | Atlantic | Shepody | Russet Burbank |
|---|---|---|---|
| Premium Flake | 80–100% | 0–20% | 0% |
| Standard Industrial Flake | 50–70% | 15–25% | 15–25% |
| Economy/Pet Food Grade | 0–30% | 30–50% | 40–70% |
9. References and Standards¶
| Standard / Reference | Description |
|---|---|
| GB/T 8884-2017 | Edible potato starch national standard (China) |
| GB/T 29383-2012 | Potato flakes standard |
| USDA Potato Variety Handbook | USDA-ARS variety database |
| EAPR (European Association for Potato Research) | Processing variety classification |
| AOAC 930.15 | Dry matter determination |
| AOAC 968.28 | Reducing sugar determination |
| Colorimetric Methods | Titratable vs. chromatographic sugar analysis |
| CTIFL (France) | Potato processing variety reference |
| ISO 7514 | Determination of ash in potato products |
| PAA (Potato Association of America) | Variety descriptions and disease ratings |
End of Document — HJ-TD-VB-001
For technical inquiries, contact: [email protected]
This document is intended for professional B2B procurement and technical teams. Data represents typical values under standard agronomic conditions in the Hebei/Inner Mongolia growing region and may vary by season and location.
References¶
- AOAC International. Official Methods of Analysis, 21st edition. Gaithersburg, MD.
- ISO (International Organization for Standardization). Horizontal methods for food microbiology and physicochemical analysis.
- Hongji Agriculture Technology Co., Ltd. 2026. "Potato Varieties for Industrial Processing: Atlantic, Shepody, and Russet Burbank." Hongji Agriculture Knowledge Center.
This document is part of the Hongji Agriculture (弘基农业) Technical Documentation Series. For more information about our vertically integrated potato supply chain — from seed breeding and cultivation to processing and global export — visit our official B2B website: https://hjpotatoflakes.com