{"id":3204,"date":"2026-03-04T14:48:08","date_gmt":"2026-03-04T13:48:08","guid":{"rendered":"https:\/\/kkuipmd.cluster100.hosting.ovh.net\/gas-sweep\/"},"modified":"2026-03-24T17:09:28","modified_gmt":"2026-03-24T16:09:28","slug":"gas-sweep","status":"publish","type":"post","link":"https:\/\/befor.fr\/en\/gas-sweep\/","title":{"rendered":"Gas scanning: principle, advantages and differences with MAP"},"content":{"rendered":"<p><strong>Gas scavenging<\/strong> involves injecting a stream of gas (often nitrogen or a nitrogen\/CO\u2082 mixture) into a tray just before closing, in order to <strong>drive out oxygen<\/strong> and limit oxidation. Unlike vacuum, this does not involve sucking out the air: it is replaced by an inert gas. <\/p><div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\"><div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66%\"><blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong>Remember<\/strong>: this is often the <strong>fastest<\/strong> method, with equipment costs generally more affordable than a MAP system (vacuum + gas).<\/p><\/blockquote><\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:34%\"><div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\"><div class=\"wp-block-button has-custom-width wp-block-button__width-100\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/befor.fr\/en\/contact-us\/\">Learn more<\/a><\/div><\/div>\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\"><div class=\"wp-block-button has-custom-width wp-block-button__width-100 is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link wp-element-button\" href=\"#faq-balayage\">See FAQ<\/a><\/div><\/div><\/div><\/div><hr class=\"wp-block-separator has-css-opacity\"\/><h2 class=\"wp-block-heading\" id=\"sommaire-balayage\">Contents<\/h2><ul class=\"wp-block-list\"><li><a href=\"#principe-balayage\">Operating principle<\/a><\/li>\n\n<li><a href=\"#comparatif-balayage\">Comparison: scanning vs vacuum vs MAP<\/a><\/li>\n\n<li><a href=\"#avantages-balayage\">Benefits<\/a><\/li>\n\n<li><a href=\"#limites-balayage\">Limits<\/a><\/li>\n\n<li><a href=\"#faq-balayage\">FAQ + Schema<\/a><\/li>\n\n<li><a href=\"#ensavoirplus-balayage\">Learn more<\/a><\/li><\/ul><hr class=\"wp-block-separator has-css-opacity\"\/><h2 class=\"wp-block-heading\" id=\"principe-balayage\">Operating principle<\/h2><ol class=\"wp-block-list\"><li>The product is placed in a tray.<\/li>\n\n<li>A nozzle injects gas at high speed to repel oxygen.<\/li>\n\n<li>The package is sealed immediately to trap the gas.<\/li><\/ol><h2 class=\"wp-block-heading\" id=\"comparatif-balayage\">Comparison: scanning vs vacuum vs MAP<\/h2><figure class=\"wp-block-table\"><table><thead><tr><th>Method<\/th><th>Principle<\/th><th>Crushing<\/th><th>Precision<\/th><th>Speed<\/th><\/tr><\/thead><tbody><tr><td>Gas sweep<\/td><td>Chases O\u2082 by gas flow<\/td><td>Null<\/td><td>Average<\/td><td>Fast<\/td><\/tr><tr><td>Sous-vide<\/td><td>Air extraction<\/td><td>Possible<\/td><td>High<\/td><td>Average<\/td><\/tr><tr><td>MAP<\/td><td>Vacuum + gas injection<\/td><td>Null<\/td><td>Very high<\/td><td>Average<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\" id=\"avantages-balayage\">Benefits<\/h2><div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><ul class=\"wp-block-list\"><li><strong>Speed<\/strong>: very fast method (no vacuum phase).<\/li>\n\n<li><strong>Protection<\/strong>: gas can create a &#8220;cushioning&#8221; effect for fragile products.<\/li><\/ul><\/div>\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><ul class=\"wp-block-list\"><li><strong>Investment<\/strong>: often more affordable than a complete MAP solution.<\/li>\n\n<li><strong>Aesthetics<\/strong>: uncompressed product, natural appearance.<\/li><\/ul><\/div><\/div><h2 class=\"wp-block-heading\" id=\"limites-balayage\">Limits<\/h2><ul class=\"wp-block-list\"><li><strong>Residual O\u2082<\/strong>: more difficult to reach such low levels than with prior vacuum.<\/li>\n\n<li><strong>Repeatability<\/strong>: results may vary depending on the arrangement of the product in the tray.<\/li><\/ul><blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong>\ud83d\udca1 Gas note<\/strong><\/p>\n\n<p>N\u2082 is used for its neutrality (anti-oxidation); CO\u2082 can be added for its bacteriostatic effect.<\/p><\/blockquote><hr class=\"wp-block-separator has-css-opacity\"\/><h2 class=\"wp-block-heading\" id=\"faq-balayage\">FAQ (SEO optimized)<\/h2><h3 class=\"wp-block-heading\" id=\"le-balayage-gazeux-remplace-t-il-le-map\">Does gas scavenging replace MAP?<\/h3><p>Not always. Scanning is very fast, but MAP offers more precise and reproducible control of residual atmosphere. <\/p><h3 class=\"wp-block-heading\" id=\"pour-quels-produits-est-ce-le-plus-adapte\">For which products is it best suited?<\/h3><p>For fragile or high-speed products, when the aim is to reduce oxygen quickly without crushing the product.<\/p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[\n{\"@type\":\"Question\",\"name\":\"Le balayage gazeux remplace-t-il le MAP ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Pas toujours. Le balayage est tr\u00e8s rapide, mais le MAP offre un contr\u00f4le plus pr\u00e9cis et plus reproductible de l\u2019atmosph\u00e8re r\u00e9siduelle.\"}},\n{\"@type\":\"Question\",\"name\":\"Pour quels produits est-ce le plus adapt\u00e9 ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Pour les produits fragiles ou \u00e0 forte cadence, lorsque l\u2019objectif est de r\u00e9duire l\u2019oxyg\u00e8ne rapidement sans \u00e9craser le produit.\"}}\n]}\n<\/script><h2 class=\"wp-block-heading\" id=\"ensavoirplus-balayage\">Learn more<\/h2><p>Would you like to determine whether gas scavenging is the best compromise (throughput, investment, residual O\u2082 level) for your products?<\/p><div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\"><div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/befor.fr\/en\/contact-us\/\">Learn more<\/a><\/div>\n\n<div class=\"wp-block-button is-style-outline is-style-outline--2\"><a class=\"wp-block-button__link wp-element-button\" href=\"#sommaire-balayage\">Back to contents<\/a><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Gas scavenging involves injecting a stream of gas (often nitrogen or a nitrogen\/CO\u2082 mixture) into a tray just before closing, in order to drive out oxygen and limit oxidation. Unlike vacuum, this does not involve sucking out the air: it is replaced by an inert gas. Remember: this is often the fastest method, with equipment [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[296],"tags":[],"class_list":["post-3204","post","type-post","status-publish","format-standard","hentry","category-technologies"],"blocksy_meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Gas flushing: protect your product from oxidation | Befor<\/title>\n<meta name=\"description\" content=\"A high-performance gas scavenging system secures your product at the lowest possible cost. 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