[{"data":1,"prerenderedAt":19},["ShallowReactive",2],{"cms-article-en-how-should-processing-potatoes-be-stored-to-control-reducing-sugars-for-potato-flour":3},[4],{"id":5,"articleId":6,"language":7,"slug":8,"path":9,"title":10,"summary":11,"seoTitle":12,"seoDescription":13,"body":14,"image":15,"publishedAt":16,"modifiedAt":16,"translations":17},71,69,"en","how-should-processing-potatoes-be-stored-to-control-reducing-sugars-for-potato-flour","/how-should-processing-potatoes-be-stored-to-control-reducing-sugars-for-potato-flour/","How Should Processing Potatoes Be Stored to Control Reducing Sugars for Potato Flour?","Processing Potato Storage Q&A How Should Processing […]","How to Store Potatoes for Low-Sugar Potato Flour","Learn how storage temperature, dry matter, sprout control, curing and sugar testing affect color, yield and reducing sugars in potato flour production.","\t\t\u003Cdiv class=\"elementor elementor-1033\">\n\t\t\t\t\u003Cdiv class=\"elementor-element elementor-element-9cd6280 e-con-full e-flex e-con e-parent\">\n\t\t\t\t\u003Cdiv class=\"elementor-element elementor-element-a9243a0 elementor-widget__width-inherit elementor-widget elementor-widget-html\">\n\t\t\t\t\t\n\n\n\u003Carticle class=\"js-storage-sugar-article\">\n\u003Cheader class=\"js-hero\">\u003Cdiv class=\"js-eyebrow\">Processing Potato Storage Q&A\u003C/div>\n\n\u003Cp class=\"js-lead\">A practical guide for potato flour manufacturers, ingredient buyers, and quality teams evaluating how storage temperature, dry matter, sprouting, curing, and sugar testing influence yield, color, flavor, and batch consistency.\u003C/p>\u003C/header>\n\u003Cdiv class=\"js-layout\">\u003Csection class=\"js-main\">\n\u003Cdiv class=\"js-intro\">\u003Cp>Potato flour quality is influenced long before steaming, drying, milling, and packing begin. Raw-tuber condition can affect finished yield, reducing sugars, browning tendency, flavor, and process stability.\u003C/p>\u003Cp>This page answers the main technical and purchasing questions international buyers should ask when evaluating low-reducing-sugar potato flour.\u003C/p>\u003C/div>\n\u003Csection id=\"q1\">\u003Ch2>1. Why Does Raw-Potato Storage Matter in Potato Flour Production?\u003C/h2>\n    \u003Cdiv class=\"js-answer-box\">\u003Cstrong>Direct answer\u003C/strong>\u003Cp>Storage changes tuber chemistry and physical condition, affecting reducing sugars, dry-matter retention, sprouting, shrinkage, rot, processing yield, and finished-powder color.\u003C/p>\u003C/div>\n    \u003Cdiv>A potato store is an early processing-control point rather than a simple warehouse. Tubers continue to respire and change after harvest, and those changes follow the raw material into steaming and drying.\n \u003Cdiv class=\"js-grid\">\u003Cdiv class=\"js-card\">\u003Cstrong>Yield control\u003C/strong>Retained solids influence powder recovery per ton.\u003C/div>\u003Cdiv class=\"js-card\">\u003Cstrong>Sugar control\u003C/strong>Temperature and storage time influence glucose and fructose.\u003C/div>\u003Cdiv class=\"js-card\">\u003Cstrong>Color control\u003C/strong>Higher reducing sugars increase heat-browning risk.\u003C/div>\u003Cdiv class=\"js-card\">\u003Cstrong>Physical condition\u003C/strong>Sprouting, rot, and shrinkage reduce usable potatoes.\u003C/div>\u003C/div>\u003C/div>\u003C/section>\u003Csection id=\"q2\">\u003Ch2>2. What Dry-Matter Level Should a Potato Flour Plant Target?\u003C/h2>\n    \u003Cdiv class=\"js-answer-box\">\u003Cstrong>Direct answer\u003C/strong>\u003Cp>Many processors prefer raw potatoes with dry matter around 19% or higher, but the approved target should match the variety, process, product grade, and buyer specification.\u003C/p>\u003C/div>\n    \u003Cdiv>Dry matter is the portion of the tuber remaining after water is removed. Higher dry matter normally means more starch and potato solids per ton and less water to evaporate.\n \u003Cdiv class=\"js-keyline\">Storage can preserve a strong crop, but it cannot reliably turn an immature, low-solids potato into an ideal processing raw material.\u003C/div>\u003C/div>\u003C/section>\u003Csection id=\"q3\">\u003Ch2>3. Why Are Reducing Sugars Important in Dehydrated Potato Flour?\u003C/h2>\n    \u003Cdiv class=\"js-answer-box\">\u003Cstrong>Direct answer\u003C/strong>\u003Cp>Reducing sugars react during heating and can darken the powder, intensify cooked notes, and reduce the light, mild profile required by many buyers.\u003C/p>\u003C/div>\n    \u003Cdiv>Glucose and fructose take part in Maillard reactions during steaming and drying. A target near 1.5% may be used for selected grades, but it is not universal. Snack bases, bakery ingredients, instant foods, and infant-food systems may use different limits.\u003C/div>\u003C/section>\u003Csection id=\"q4\">\u003Ch2>4. What Is Cold-Induced Sweetening in Processing Potatoes?\u003C/h2>\n    \u003Cdiv class=\"js-answer-box\">\u003Cstrong>Direct answer\u003C/strong>\u003Cp>Cold-induced sweetening is the conversion of part of the potato starch into reducing sugars when tubers are held at low temperatures for too long.\u003C/p>\u003C/div>\n    \u003Cdiv>Very cold storage may slow sprouting, but it can increase browning risk. A lot that entered storage within specification may leave with a different sugar profile.\n \u003Cdiv class=\"js-risk\">\u003Cstrong>Buyer concern\u003C/strong>One pale sample made from freshly harvested potatoes does not prove stable color after several months of storage.\u003C/div>\u003C/div>\u003C/section>\u003Csection id=\"q5\">\u003Ch2>5. Why Is an 8–12°C Storage Range Often Used for Processing Potatoes?\u003C/h2>\n    \u003Cdiv class=\"js-answer-box\">\u003Cstrong>Direct answer\u003C/strong>\u003Cp>A controlled range around 8–12°C can help limit cold-induced sweetening compared with colder storage, while keeping the crop available for potato flour processing.\u003C/p>\u003C/div>\n    \u003Cdiv>The range must be validated by variety, storage duration, local climate, dormancy, disease pressure, and finished-product needs.\n \u003Cdiv class=\"js-table-wrap\">\u003Ctable>\u003Cthead>\u003Ctr>\u003Cth>Storage approach\u003C/th>\u003Cth>Potential advantage\u003C/th>\u003Cth>Main risk\u003C/th>\u003C/tr>\u003C/thead>\u003Ctbody>\n \u003Ctr>\u003Ctd>Very cold storage\u003C/td>\u003Ctd>Slower sprouting\u003C/td>\u003Ctd>Cold-induced sweetening\u003C/td>\u003C/tr>\n \u003Ctr>\u003Ctd>Controlled 8–12°C\u003C/td>\u003Ctd>Lower sugar build-up and lighter processing color\u003C/td>\u003Ctd>Faster sprouting and respiration\u003C/td>\u003C/tr>\n \u003Ctr>\u003Ctd>Uncontrolled warm storage\u003C/td>\u003Ctd>Lower refrigeration demand\u003C/td>\u003Ctd>Rot, shrinkage, and inconsistent lots\u003C/td>\u003C/tr>\n \u003C/tbody>\u003C/table>\u003C/div>\u003C/div>\u003C/section>\u003Csection id=\"q6\">\u003Ch2>6. Does 8–12°C Storage Guarantee Reducing Sugar Below the Buyer’s Limit?\u003C/h2>\n    \u003Cdiv class=\"js-answer-box\">\u003Cstrong>Direct answer\u003C/strong>\u003Cp>No. Temperature is only one control. Variety, maturity, pre-storage sugar, curing, humidity, storage duration, sprouting, and factory heat treatment also affect the result.\u003C/p>\u003C/div>\n    \u003Cdiv>A warmer store may reduce cold sweetening while increasing sprout growth and weight loss. The storage plan must balance sugar chemistry, physical condition, and final powder specifications.\u003C/div>\u003C/section>\u003Csection id=\"q7\">\u003Ch2>7. How Should Humidity and Air Movement Be Controlled?\u003C/h2>\n    \u003Cdiv class=\"js-answer-box\">\u003Cstrong>Direct answer\u003C/strong>\u003Cp>Humidity and airflow should prevent excessive dehydration, condensation, hot spots, carbon-dioxide build-up, and uneven temperature through the potato pile.\u003C/p>\u003C/div>\n    \u003Cdiv>Forced ventilation and recirculation help remove respiration heat and stabilize the pile.\n \u003Cdiv class=\"js-grid\">\u003Cdiv class=\"js-card\">\u003Cstrong>Too dry\u003C/strong>Higher shrinkage and weight loss.\u003C/div>\u003Cdiv class=\"js-card\">\u003Cstrong>Too wet\u003C/strong>Condensation and disease pressure.\u003C/div>\u003Cdiv class=\"js-card\">\u003Cstrong>Poor airflow\u003C/strong>Hot spots and uneven sugar development.\u003C/div>\u003Cdiv class=\"js-card\">\u003Cstrong>Controlled airflow\u003C/strong>More uniform storage and outturn quality.\u003C/div>\u003C/div>\u003C/div>\u003C/section>\u003Csection id=\"q8\">\u003Ch2>8. Why Is Sprout Control Essential at Warmer Storage Temperatures?\u003C/h2>\n    \u003Cdiv class=\"js-answer-box\">\u003Cstrong>Direct answer\u003C/strong>\u003Cp>Potatoes stored around 8–12°C may sprout sooner, so controlled sprout management is needed to protect weight, solids, handling quality, and processing consistency.\u003C/p>\u003C/div>\n    \u003Cdiv>Any sprout-control programme must follow the approved product label, local rules, destination-market residue requirements, and calibrated application procedures.\n \u003Cdiv class=\"js-note\">Sprout control supports the storage strategy; it does not replace hygiene, temperature monitoring, residue compliance, or raw-potato inspection.\u003C/div>\u003C/div>\u003C/section>\u003Csection id=\"q9\">\u003Ch2>9. How Do Potato Variety and Field Maturity Affect Storage Performance?\u003C/h2>\n    \u003Cdiv class=\"js-answer-box\">\u003Cstrong>Direct answer\u003C/strong>\u003Cp>Variety and maturity establish the starting dry matter, sugar profile, dormancy, storage behavior, disease tolerance, and processing yield.\u003C/p>\u003C/div>\n    \u003Cdiv>A stable potato flour programme starts with processing varieties selected for dry matter, storage behavior, and finished-product color. Storage cannot fully correct an unsuitable variety or immature crop.\u003C/div>\u003C/section>\u003Csection id=\"q10\">\u003Ch2>10. What Role Does Curing Play Before Long-Term Storage?\u003C/h2>\n    \u003Cdiv class=\"js-answer-box\">\u003Cstrong>Direct answer\u003C/strong>\u003Cp>Curing supports skin setting and wound healing after harvest, helping reduce water loss, infection risk, and later storage deterioration.\u003C/p>\u003C/div>\n    \u003Cdiv>Curing conditions should be adapted to variety, crop condition, disease pressure, and planned storage duration. Damaged or diseased lots may need separate handling.\u003C/div>\u003C/section>\u003Csection id=\"q11\">\u003Ch2>11. When Should Dry Matter and Reducing Sugars Be Tested?\u003C/h2>\n    \u003Cdiv class=\"js-answer-box\">\u003Cstrong>Direct answer\u003C/strong>\u003Cp>Test at intake, during storage where risk justifies it, at outturn, and before production. Trend data is more useful than one isolated result.\u003C/p>\u003C/div>\n    \u003Cdiv>\u003Cdiv class=\"js-table-wrap\">\u003Ctable>\u003Cthead>\u003Ctr>\u003Cth>Testing stage\u003C/th>\u003Cth>Why it matters\u003C/th>\u003C/tr>\u003C/thead>\u003Ctbody>\n \u003Ctr>\u003Ctd>Intake\u003C/td>\u003Ctd>Defines starting quality and storage suitability.\u003C/td>\u003C/tr>\n \u003Ctr>\u003Ctd>During storage\u003C/td>\u003Ctd>Tracks sugar movement, sprouting, shrinkage, and deterioration.\u003C/td>\u003C/tr>\n \u003Ctr>\u003Ctd>Outturn\u003C/td>\u003Ctd>Supports lot scheduling and segregation.\u003C/td>\u003C/tr>\n \u003Ctr>\u003Ctd>Before production\u003C/td>\u003Ctd>Allows final process adjustment and release control.\u003C/td>\u003C/tr>\n \u003C/tbody>\u003C/table>\u003C/div>\u003C/div>\u003C/section>\u003Csection id=\"q12\">\u003Ch2>12. What Should a Factory Do When Reducing Sugars Begin to Rise?\u003C/h2>\n    \u003Cdiv class=\"js-answer-box\">\u003Cstrong>Direct answer\u003C/strong>\u003Cp>Review the lot history, temperature, duration, sprouting, variety, test trend, and intended application before deciding whether to process, segregate, blend, hold, or reject the lot.\u003C/p>\u003C/div>\n    \u003Cdiv>The decision should be documented. A lot near the limit may suit one product but not another. Pilot drying or finished-color evaluation can support the decision.\u003C/div>\u003C/section>\u003Csection id=\"q13\">\u003Ch2>13. How Do Steaming and Drying Interact with Raw-Potato Sugar Levels?\u003C/h2>\n    \u003Cdiv class=\"js-answer-box\">\u003Cstrong>Direct answer\u003C/strong>\u003Cp>Higher reducing sugars create more browning potential, while steaming and drying conditions determine how strongly that potential appears in the finished powder.\u003C/p>\u003C/div>\n    \u003Cdiv>Long heat exposure, high surface temperature, uneven drying, and variable feed can amplify lot differences.\n \u003Cdiv class=\"js-keyline\">Storage control and dryer control must be evaluated together. Careful drying cannot fully hide severely elevated sugars.\u003C/div>\u003C/div>\u003C/section>\u003Csection id=\"q14\">\u003Ch2>14. What Should Overseas Buyers Request from a Potato Flour Supplier?\u003C/h2>\n    \u003Cdiv class=\"js-answer-box\">\u003Cstrong>Direct answer\u003C/strong>\u003Cp>Request the finished specification, COA data, reducing-sugar method, color standard, raw-material controls, seasonal trend information, and lot traceability.\u003C/p>\u003C/div>\n    \u003Cdiv>\u003Cdiv class=\"js-table-wrap\">\u003Ctable>\u003Cthead>\u003Ctr>\u003Cth>Buyer request\u003C/th>\u003Cth>Why it matters\u003C/th>\u003C/tr>\u003C/thead>\u003Ctbody>\n \u003Ctr>\u003Ctd>Reducing-sugar limit and method\u003C/td>\u003Ctd>Clarifies the release standard and reporting basis.\u003C/td>\u003C/tr>\n \u003Ctr>\u003Ctd>Color or browning reference\u003C/td>\u003Ctd>Connects chemistry with final product appearance.\u003C/td>\u003C/tr>\n \u003Ctr>\u003Ctd>Raw-potato dry-matter programme\u003C/td>\u003Ctd>Shows upstream yield and seasonal control.\u003C/td>\u003C/tr>\n \u003Ctr>\u003Ctd>Storage and sprout-control summary\u003C/td>\u003Ctd>Supports residue and traceability review.\u003C/td>\u003C/tr>\n \u003Ctr>\u003Ctd>Multi-batch COA trends\u003C/td>\u003Ctd>Provides stronger evidence than one selected sample.\u003C/td>\u003C/tr>\n \u003C/tbody>\u003C/table>\u003C/div>\u003C/div>\u003C/section>\u003Csection id=\"q15\">\u003Ch2>15. Which Warning Signs Suggest Weak Raw-Potato Storage Control?\u003C/h2>\n    \u003Cdiv class=\"js-answer-box\">\u003Cstrong>Direct answer\u003C/strong>\u003Cp>Large color variation, repeated high sugar results, missing storage records, unexplained seasonal changes, and weak lot traceability should delay supplier approval.\u003C/p>\u003C/div>\n    \u003Cdiv>\u003Cdiv class=\"js-risk\">\u003Cstrong>Unexplained batch drift\u003C/strong>Color or flavor changes without a raw-material investigation.\u003C/div>\n \u003Cdiv class=\"js-risk\">\u003Cstrong>One perfect COA\u003C/strong>No multi-batch or seasonal trend evidence is available.\u003C/div>\n \u003Cdiv class=\"js-risk\">\u003Cstrong>Missing lot linkage\u003C/strong>Raw potatoes cannot be connected to the finished powder batch.\u003C/div>\n \u003Cdiv class=\"js-risk\">\u003Cstrong>Uncontrolled warm storage\u003C/strong>Temperature is high but sprouting, airflow, humidity, and weight loss are not monitored.\u003C/div>\u003C/div>\u003C/section>\u003Csection id=\"q16\">\u003Ch2>16. What Is the Best Practical Rule for Producing Low-Reducing-Sugar Potato Flour?\u003C/h2>\n    \u003Cdiv class=\"js-answer-box\">\u003Cstrong>Direct answer\u003C/strong>\u003Cp>Start with a suitable variety and mature high-solids crop, cure it correctly, store it in a validated climate window, control sprouting and humidity, test sugar trends, and match heat treatment to the lot.\u003C/p>\u003C/div>\n    \u003Cdiv>Low-reducing-sugar potato flour is produced through an integrated system extending from field selection and curing through storage, outturn testing, steaming, drying, milling, and release.\n \u003Cdiv class=\"js-conclusion\">\u003Ch3>Final Buyer Takeaway\u003C/h3>\u003Cp>A supplier that can show stable multi-batch results, traceable raw-potato controls, and a documented response to seasonal variation offers more value than one that only promises a light color.\u003C/p>\u003C/div>\u003C/div>\u003C/section>\n\u003C/section>\n\u003Caside class=\"js-sidebar\">\u003Cnav class=\"js-toc\">\u003Cp class=\"js-toc-title\">Question Navigation\u003C/p>\u003Col>\u003Cli>\u003Ca href=\"#q1\">Why Does Raw-Potato Storage Matter in Potato Flour Production?\u003C/a>\u003C/li>\u003Cli>\u003Ca href=\"#q2\">What Dry-Matter Level Should a Potato Flour Plant Target?\u003C/a>\u003C/li>\u003Cli>\u003Ca href=\"#q3\">Why Are Reducing Sugars Important in Dehydrated Potato Flour?\u003C/a>\u003C/li>\u003Cli>\u003Ca href=\"#q4\">What Is Cold-Induced Sweetening in Processing Potatoes?\u003C/a>\u003C/li>\u003Cli>\u003Ca href=\"#q5\">Why Is an 8–12°C Storage Range Often Used for Processing Potatoes?\u003C/a>\u003C/li>\u003Cli>\u003Ca href=\"#q6\">Does 8–12°C Storage Guarantee Reducing Sugar Below the Buyer’s Limit?\u003C/a>\u003C/li>\u003Cli>\u003Ca href=\"#q7\">How Should Humidity and Air Movement Be Controlled?\u003C/a>\u003C/li>\u003Cli>\u003Ca href=\"#q8\">Why Is Sprout Control Essential at Warmer Storage Temperatures?\u003C/a>\u003C/li>\u003Cli>\u003Ca href=\"#q9\">How Do Potato Variety and Field Maturity Affect Storage Performance?\u003C/a>\u003C/li>\u003Cli>\u003Ca href=\"#q10\">What Role Does Curing Play Before Long-Term Storage?\u003C/a>\u003C/li>\u003Cli>\u003Ca href=\"#q11\">When Should Dry Matter and Reducing Sugars Be Tested?\u003C/a>\u003C/li>\u003Cli>\u003Ca href=\"#q12\">What Should a Factory Do When Reducing Sugars Begin to Rise?\u003C/a>\u003C/li>\u003Cli>\u003Ca href=\"#q13\">How Do Steaming and Drying Interact with Raw-Potato Sugar Levels?\u003C/a>\u003C/li>\u003Cli>\u003Ca href=\"#q14\">What Should Overseas Buyers Request from a Potato Flour Supplier?\u003C/a>\u003C/li>\u003Cli>\u003Ca href=\"#q15\">Which Warning Signs Suggest Weak Raw-Potato Storage Control?\u003C/a>\u003C/li>\u003Cli>\u003Ca href=\"#q16\">What Is the Best Practical Rule for Producing Low-Reducing-Sugar Potato Flour?\u003C/a>\u003C/li>\u003C/ol>\u003C/nav>\u003C/aside>\n\u003C/div>\u003C/article>\t\t\t\t\u003C/div>\n\t\t\t\t\u003C/div>\n\t\t\u003Cdiv class=\"elementor-element elementor-element-1ff3e78a e-con-full e-flex e-con e-parent\">\n\t\t\t\t\u003Cdiv class=\"elementor-element elementor-element-2bd03dbd elementor-post-navigation-borders-yes elementor-widget elementor-widget-post-navigation\">\n\t\t\t\t\t\t\t\u003Cdiv class=\"elementor-post-navigation\">\n\t\t\t\u003Cdiv class=\"elementor-post-navigation__prev elementor-post-navigation__link\">\n\t\t\t\t\u003Ca href=\"https://chinesepotatoflour.com/what-should-food-manufacturers-know-before-buying-potato-flour-in-bulk/\" rel=\"prev\">\u003Cspan class=\"post-navigation__arrow-wrapper post-navigation__arrow-prev\">\u003Cspan class=\"elementor-screen-only\">Prev\u003C/span>\u003C/span>\u003Cspan class=\"elementor-post-navigation__link__prev\">\u003Cspan class=\"post-navigation__prev--label\">Previous\u003C/span>\u003Cspan class=\"post-navigation__prev--title\">What Should Food Manufacturers Know Before Buying Potato Flour in Bulk?\u003C/span>\u003C/span>\u003C/a>\t\t\t\u003C/div>\n\t\t\t\t\t\t\t\u003Cdiv class=\"elementor-post-navigation__separator-wrapper\">\n\t\t\t\t\t\u003Cdiv class=\"elementor-post-navigation__separator\">\u003C/div>\n\t\t\t\t\u003C/div>\n\t\t\t\t\t\t\u003Cdiv class=\"elementor-post-navigation__next elementor-post-navigation__link\">\n\t\t\t\t\t\t\t\u003C/div>\n\t\t\u003C/div>\n\t\t\t\t\t\t\u003C/div>\n\t\t\t\t\u003C/div>\n\t\t\t\t\u003C/div>\n\t\t",null,"2026-06-30T08:00:09",[18],{"language":7,"path":9},1790735093657]