{"id":3131,"date":"2023-10-25T09:17:25","date_gmt":"2023-10-25T07:17:25","guid":{"rendered":"https:\/\/jongejans.com\/?post_type=cases&#038;p=3131"},"modified":"2026-05-12T16:27:22","modified_gmt":"2026-05-12T14:27:22","slug":"jongejans-provides-a-solution-for-potatoes-and-onions-at-german-processor-groka","status":"publish","type":"cases","link":"https:\/\/jongejans.com\/en\/cases\/jongejans-provides-a-solution-for-potatoes-and-onions-at-german-processor-groka\/","title":{"rendered":"Jongejans provides potato and onion solution at German processor Groka"},"content":{"rendered":"<p>The German potato and onion cooperative Groka is located east of Hanover. This area in Lower Saxony produces more than half of Germany&#039;s onions and half of its potatoes. Groka has a market share of no less than 20-25% in the German onion market. In the video report below, director Volker Peters explains the entire process, including the new Ellisam sorting line and the extraction system from Jongejans Luchttechniek.<br \/>\nGroka packages approximately 20% of its onion volume itself (6,000 to 8,000 tons), but the majority is delivered to packers throughout Germany, from Munich to Hamburg. Onions are packaged in weights ranging from 500 grams to 2.5 kilograms, and potatoes from 5,000 grams to 25 kilograms. Groka has a central storage facility with a capacity of 25,000 tons, where its members&#039; harvests are stored.<\/p>\n<p>&nbsp;<\/p>\n<p><iframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/pfQ0HX8aDuc?si=pvNwUnzdseZDZgxy\" width=\"600\" height=\"337\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\" data-mce-fragment=\"1\"><\/iframe><\/p>\n<div>\n<p>In recent years, the cooperation decided to invest in a completely new optical sorting line to continue serving its customers with the desired quality and to save labor. Several projects in the Netherlands and Switzerland were visited for this purpose. In 2021, for example, a visit was made to Top The Onion Group in 's-Gravenpolder to view the same combination of optical sorting technology with Jongejans Luchttechniek's extraction system.<\/p>\n<\/div>\n<div>\n<p>Extraction plays a crucial role in the effectiveness of an optical sorting line. The sorter must be placed in a near-clinical environment to function optimally. Early extraction of skins and dust is essential. Windshifting technology is used to ensure the onions enter the sorter process as cleanly as possible. To protect the high-tech camera technology and ensure the clearest possible images, positive pressure is also used in the camera boxes.<\/p>\n<\/div>\n<div>\n<p>Along with this project, Groka also invested in extraction systems for its packaging lines, which has increased the capacity of the weighing\/packaging machines. This also creates a noticeably cleaner, dust-free working environment. A total of 31 points are extracted during optical sorting and another 29 points at the packaging facility. \"Jongejans offered us the complete solution for this. The systems have been operating here to our complete satisfaction for over 30 years,\" says Volker Peters.<\/p>\n<\/div>\n<div>\n<p>In the United States and Europe, around forty large onion processors are still working satisfactorily with the Jongejans extraction solution on their sorting systems. Groka is the first German processor to implement this solution. \"The beauty of our solutions is that they make everyone who uses them, happy. Good extraction ensures better machine performance, less dust in the workspace, and cleaner products.\"<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>De Duitse aardappelen- en uienco\u00f6peratie Groka is gevestigd ten oosten van Hannover. In dit gebied in Niedersachsen worden meer dan de helft van de Duitse uien en de helft van de Duitse aardappelen verbouwd. Groka heeft een aandeel op de Duitse uienmarkt van maar liefst 20-25%. In onderstaande videoreportage licht directeur Volker Peters het hele [&hellip;]<\/p>\n","protected":false},"featured_media":1588,"template":"","class_list":["post-3131","cases","type-cases","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Jongejans verzorgt oplossing voor aardappels en uien bij Duitse verwerker Groka - Jongejans Luchttechniek<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jongejans.com\/en\/cases\/jongejans-provides-a-solution-for-potatoes-and-onions-at-german-processor-groka\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jongejans verzorgt oplossing voor aardappels en uien bij Duitse verwerker Groka - Jongejans Luchttechniek\" \/>\n<meta property=\"og:description\" content=\"De Duitse aardappelen- en uienco\u00f6peratie Groka is gevestigd ten oosten van Hannover. In dit gebied in Niedersachsen worden meer dan de helft van de Duitse uien en de helft van de Duitse aardappelen verbouwd. Groka heeft een aandeel op de Duitse uienmarkt van maar liefst 20-25%. In onderstaande videoreportage licht directeur Volker Peters het hele [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/jongejans.com\/en\/cases\/jongejans-provides-a-solution-for-potatoes-and-onions-at-german-processor-groka\/\" \/>\n<meta property=\"og:site_name\" content=\"Jongejans Luchttechniek\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-12T14:27:22+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/jongejans.com\/wp-content\/uploads\/2025\/07\/groka-1-1400x788-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1400\" \/>\n\t<meta property=\"og:image:height\" content=\"788\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/jongejans.com\\\/cases\\\/jongejans-verzorgt-oplossing-voor-aardappels-en-uien-bij-duitse-verwerker-groka\\\/\",\"url\":\"https:\\\/\\\/jongejans.com\\\/cases\\\/jongejans-verzorgt-oplossing-voor-aardappels-en-uien-bij-duitse-verwerker-groka\\\/\",\"name\":\"Jongejans verzorgt oplossing voor aardappels en uien bij Duitse verwerker Groka - Jongejans Luchttechniek\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/jongejans.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/jongejans.com\\\/cases\\\/jongejans-verzorgt-oplossing-voor-aardappels-en-uien-bij-duitse-verwerker-groka\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/jongejans.com\\\/cases\\\/jongejans-verzorgt-oplossing-voor-aardappels-en-uien-bij-duitse-verwerker-groka\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/jongejans.com\\\/wp-content\\\/uploads\\\/2025\\\/07\\\/groka-1-1400x788-1.png\",\"datePublished\":\"2023-10-25T07:17:25+00:00\",\"dateModified\":\"2026-05-12T14:27:22+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/jongejans.com\\\/cases\\\/jongejans-verzorgt-oplossing-voor-aardappels-en-uien-bij-duitse-verwerker-groka\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/jongejans.com\\\/cases\\\/jongejans-verzorgt-oplossing-voor-aardappels-en-uien-bij-duitse-verwerker-groka\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/jongejans.com\\\/cases\\\/jongejans-verzorgt-oplossing-voor-aardappels-en-uien-bij-duitse-verwerker-groka\\\/#primaryimage\",\"url\":\"https:\\\/\\\/jongejans.com\\\/wp-content\\\/uploads\\\/2025\\\/07\\\/groka-1-1400x788-1.png\",\"contentUrl\":\"https:\\\/\\\/jongejans.com\\\/wp-content\\\/uploads\\\/2025\\\/07\\\/groka-1-1400x788-1.png\",\"width\":1400,\"height\":788},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/jongejans.com\\\/cases\\\/jongejans-verzorgt-oplossing-voor-aardappels-en-uien-bij-duitse-verwerker-groka\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/jongejans.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jongejans verzorgt oplossing voor aardappels en uien bij Duitse verwerker Groka\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/jongejans.com\\\/#website\",\"url\":\"https:\\\/\\\/jongejans.com\\\/\",\"name\":\"Jongejans Luchttechniek\",\"description\":\"Leaders in clean air\",\"publisher\":{\"@id\":\"https:\\\/\\\/jongejans.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/jongejans.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/jongejans.com\\\/#organization\",\"name\":\"Jongejans Luchttechniek\",\"url\":\"https:\\\/\\\/jongejans.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/jongejans.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/jongejans.com\\\/wp-content\\\/uploads\\\/2020\\\/07\\\/jongejans-logo.svg\",\"contentUrl\":\"https:\\\/\\\/jongejans.com\\\/wp-content\\\/uploads\\\/2020\\\/07\\\/jongejans-logo.svg\",\"caption\":\"Jongejans Luchttechniek\"},\"image\":{\"@id\":\"https:\\\/\\\/jongejans.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Jongejans provides potato and onion solution at German processor Groka - Jongejans Air Technology","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/jongejans.com\/en\/cases\/jongejans-provides-a-solution-for-potatoes-and-onions-at-german-processor-groka\/","og_locale":"en_US","og_type":"article","og_title":"Jongejans verzorgt oplossing voor aardappels en uien bij Duitse verwerker Groka - Jongejans Luchttechniek","og_description":"De Duitse aardappelen- en uienco\u00f6peratie Groka is gevestigd ten oosten van Hannover. In dit gebied in Niedersachsen worden meer dan de helft van de Duitse uien en de helft van de Duitse aardappelen verbouwd. Groka heeft een aandeel op de Duitse uienmarkt van maar liefst 20-25%. In onderstaande videoreportage licht directeur Volker Peters het hele [&hellip;]","og_url":"https:\/\/jongejans.com\/en\/cases\/jongejans-provides-a-solution-for-potatoes-and-onions-at-german-processor-groka\/","og_site_name":"Jongejans Luchttechniek","article_modified_time":"2026-05-12T14:27:22+00:00","og_image":[{"width":1400,"height":788,"url":"https:\/\/jongejans.com\/wp-content\/uploads\/2025\/07\/groka-1-1400x788-1.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/jongejans.com\/cases\/jongejans-verzorgt-oplossing-voor-aardappels-en-uien-bij-duitse-verwerker-groka\/","url":"https:\/\/jongejans.com\/cases\/jongejans-verzorgt-oplossing-voor-aardappels-en-uien-bij-duitse-verwerker-groka\/","name":"Jongejans provides potato and onion solution at German processor Groka - Jongejans Air Technology","isPartOf":{"@id":"https:\/\/jongejans.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/jongejans.com\/cases\/jongejans-verzorgt-oplossing-voor-aardappels-en-uien-bij-duitse-verwerker-groka\/#primaryimage"},"image":{"@id":"https:\/\/jongejans.com\/cases\/jongejans-verzorgt-oplossing-voor-aardappels-en-uien-bij-duitse-verwerker-groka\/#primaryimage"},"thumbnailUrl":"https:\/\/jongejans.com\/wp-content\/uploads\/2025\/07\/groka-1-1400x788-1.png","datePublished":"2023-10-25T07:17:25+00:00","dateModified":"2026-05-12T14:27:22+00:00","breadcrumb":{"@id":"https:\/\/jongejans.com\/cases\/jongejans-verzorgt-oplossing-voor-aardappels-en-uien-bij-duitse-verwerker-groka\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/jongejans.com\/cases\/jongejans-verzorgt-oplossing-voor-aardappels-en-uien-bij-duitse-verwerker-groka\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/jongejans.com\/cases\/jongejans-verzorgt-oplossing-voor-aardappels-en-uien-bij-duitse-verwerker-groka\/#primaryimage","url":"https:\/\/jongejans.com\/wp-content\/uploads\/2025\/07\/groka-1-1400x788-1.png","contentUrl":"https:\/\/jongejans.com\/wp-content\/uploads\/2025\/07\/groka-1-1400x788-1.png","width":1400,"height":788},{"@type":"BreadcrumbList","@id":"https:\/\/jongejans.com\/cases\/jongejans-verzorgt-oplossing-voor-aardappels-en-uien-bij-duitse-verwerker-groka\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/jongejans.com\/"},{"@type":"ListItem","position":2,"name":"Jongejans verzorgt oplossing voor aardappels en uien bij Duitse verwerker Groka"}]},{"@type":"WebSite","@id":"https:\/\/jongejans.com\/#website","url":"https:\/\/jongejans.com\/","name":"Jongejans Luchttechniek","description":"Leaders in clean air","publisher":{"@id":"https:\/\/jongejans.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/jongejans.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/jongejans.com\/#organization","name":"Jongejans Luchttechniek","url":"https:\/\/jongejans.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/jongejans.com\/#\/schema\/logo\/image\/","url":"https:\/\/jongejans.com\/wp-content\/uploads\/2020\/07\/jongejans-logo.svg","contentUrl":"https:\/\/jongejans.com\/wp-content\/uploads\/2020\/07\/jongejans-logo.svg","caption":"Jongejans Luchttechniek"},"image":{"@id":"https:\/\/jongejans.com\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/jongejans.com\/en\/wp-json\/wp\/v2\/cases\/3131","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jongejans.com\/en\/wp-json\/wp\/v2\/cases"}],"about":[{"href":"https:\/\/jongejans.com\/en\/wp-json\/wp\/v2\/types\/cases"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jongejans.com\/en\/wp-json\/wp\/v2\/media\/1588"}],"wp:attachment":[{"href":"https:\/\/jongejans.com\/en\/wp-json\/wp\/v2\/media?parent=3131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}