{"id":421,"date":"2026-06-17T01:15:40","date_gmt":"2026-06-17T01:15:40","guid":{"rendered":"https:\/\/2026.quickfreeze.com\/engineering-guide\/pallet-loading\/"},"modified":"2026-06-18T23:29:49","modified_gmt":"2026-06-18T23:29:49","slug":"pallet-loading","status":"publish","type":"page","link":"https:\/\/quickfreeze.com\/es\/engineering-guide\/pallet-loading\/","title":{"rendered":"Pallet Loading &#038; Airflow"},"content":{"rendered":"<style>\n.page-id-421 .entry-header{display:none;}\n.qf-eg-eyebrow{display:block;text-transform:uppercase;letter-spacing:.14em;font-size:.85rem;font-weight:700;opacity:.85;margin-bottom:.4rem;}\n.qf-eg-note{background:#fff8e8;border-left:5px solid #e8a317;padding:1rem 1.25rem;margin:1.5rem 0;border-radius:0 6px 6px 0;}\n.qf-eg-note p{margin:.35rem 0;}\n.qf-eg-pager{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-top:1rem;}\n.qf-eg-pager a{font-weight:700;color:var(--qf-blue,#005EB8);text-decoration:none;}\n.qf-eg-pager a:hover{text-decoration:underline;}\n.qf-figure{margin:0;border-radius:12px;overflow:hidden;box-shadow:0 8px 26px rgba(16,24,32,.12);background:#fff;}\n.qf-figure img{width:100%;height:300px;object-fit:cover;display:block;}\n.qf-figure figcaption{padding:.85rem 1.15rem;font-size:.92rem;color:#101820;}\n.qf-cmp{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;margin:1rem 0 2.5rem;}\n.qf-cmp figcaption .tag{display:inline-block;font-weight:700;margin-right:.4rem;}\n.qf-cmp .good{border-top:5px solid #00a32a;}\n.qf-cmp .good .tag{color:#00a32a;}\n.qf-cmp .bad{border-top:5px solid #d52a3f;}\n.qf-cmp .bad .tag{color:#d52a3f;}\n.qf-principle{margin:0 0 .25rem;}\n.qf-mini{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem;}\n.qf-mini .qf-figure img{height:160px;}\n.qf-mini figcaption{font-size:.82rem;padding:.6rem .8rem;}\n<\/style>\n<div class=\"qf-hero\">\n<span class=\"qf-eg-eyebrow\">Engineering Guide &middot; Operator Best Practices<\/span><\/p>\n<h1>Carga de pal\u00e9s y flujo de aire<\/h1>\n<p class=\"lead\">How a pallet is built and staged decides how fast &mdash; and how evenly &mdash; a QFM freezes it. Blast air has to travel <em>a trav\u00e9s de<\/em> the pallet, not around it. These are the loading practices that get the most out of every cycle.<\/p>\n<\/div>\n<div class=\"qf-section\">\n<div class=\"qf-container\">\n<h2>Why Loading Determines Freeze Time<\/h2>\n<p class=\"section-sub\">Airflow is the whole game. Build the stack so cold air can reach every case &mdash; not just the outside ones.<\/p>\n<figure class=\"qf-figure\" style=\"margin-bottom:1.75rem;\">\n<img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/qfm-airflow-pallet-spacers.jpg\" alt=\"Status light glowing through pallet spacers, showing the airflow channels under a QFM\" style=\"height:auto;max-height:440px;\"><figcaption>Spacers between every layer open up airflow channels straight through the load &mdash; here, lit from behind so you can see the gaps the cold air travels through.<\/figcaption><\/figure>\n<p>A QFM pushes a high volume of cold air at the face of every pallet. That air only does work if it can get <strong>a trav\u00e9s de<\/strong> the stack. Missing spacers, chimney gaps, loose top layers, and product hanging over the pallet face all give the air an easier path <em>around<\/em> the load &mdash; and every cubic foot that bypasses the pallet is freeze performance you paid for and didn&rsquo;t get.<\/p>\n<div class=\"qf-eg-note\">\n<p><strong>Loading and racking work together.<\/strong> Opening height is sized to your tallest real pallet so air can&rsquo;t bypass over a short stack &mdash; see <a href=\"\/es\/engineering-guide\/racking\/\">Section 3: Racking<\/a>. Loading is the other half: even a perfectly sized opening can&rsquo;t fix a stack that blocks its own airflow.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"qf-section alt\">\n<div class=\"qf-container\">\n<h2>Build the Stack for Airflow<\/h2>\n<p class=\"section-sub\">Four habits that separate a fast, even freeze from a slow, uneven one.<\/p>\n<h3 class=\"qf-principle\">1. Put spacers between every layer<\/h3>\n<div class=\"qf-cmp\">\n<figure class=\"qf-figure good\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/stack-good-banded-top-1024x576.jpg\" alt=\"Good stack with spacers between every layer and a banded top\"><figcaption><span class=\"tag\">&#10003; Do this<\/span> Spacers between every layer keep the airflow channels open top to bottom.<\/figcaption><\/figure>\n<figure class=\"qf-figure bad\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/stack-bad-center-no-spacers-1024x576.jpg\" alt=\"Bad center stack with no spacers\"><figcaption><span class=\"tag\">&#10007; Avoid<\/span> No spacers &mdash; the center of the pallet never sees cold air and finishes last.<\/figcaption><\/figure>\n<\/div>\n<h3 class=\"qf-principle\">2. Keep the stack square &mdash; no chimneys<\/h3>\n<div class=\"qf-cmp\">\n<figure class=\"qf-figure good\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/stack-good-restack-1024x576.jpg\" alt=\"Cases restacked square and flush to the pallet\"><figcaption><span class=\"tag\">&#10003; Do this<\/span> Cases stacked square and flush, faces aligned to the pallet edge.<\/figcaption><\/figure>\n<figure class=\"qf-figure bad\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/stack-bad-chimney-1024x576.jpg\" alt=\"Chimney stack with a gap up the middle and no spacers\"><figcaption><span class=\"tag\">&#10007; Avoid<\/span> A chimney up the middle lets air shoot straight through instead of across the cases.<\/figcaption><\/figure>\n<\/div>\n<h3 class=\"qf-principle\">3. Secure the top layer<\/h3>\n<div class=\"qf-cmp\">\n<figure class=\"qf-figure good\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/stack-good-rope-tie-1024x576.jpg\" alt=\"Top layer secured with a rope tie\"><figcaption><span class=\"tag\">&#10003; Do this<\/span> Band or rope-tie the top layer so it can&rsquo;t shift or lift in the airflow.<\/figcaption><\/figure>\n<figure class=\"qf-figure bad\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/stack-bad-wrapping-1024x576.jpg\" alt=\"Pallet wrapped only on the top half\"><figcaption><span class=\"tag\">&#10007; Avoid<\/span> Wrapping only the top half leaves the load unstable under blast air.<\/figcaption><\/figure>\n<\/div>\n<h3 class=\"qf-principle\">4. Build booster pallets correctly<\/h3>\n<div class=\"qf-cmp\">\n<figure class=\"qf-figure good\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/stack-good-booster-trio-1024x576.jpg\" alt=\"Three properly built booster pallets\"><figcaption><span class=\"tag\">&#10003; Do this<\/span> Proper booster pallets &mdash; full, square, and spacered like any other stack.<\/figcaption><\/figure>\n<figure class=\"qf-figure bad\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/stack-bad-booster-on-top-1024x576.jpg\" alt=\"Booster pallet stacked on top of the load\"><figcaption><span class=\"tag\">&#10007; Avoid<\/span> A booster pallet stacked on top fouls the seal and breaks the airflow path.<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"qf-section\">\n<div class=\"qf-container\">\n<h2>Seal to the Pallet Face<\/h2>\n<p class=\"section-sub\">A clean seal means every CFM the fan moves goes through the pallet instead of around it.<\/p>\n<div class=\"qf-cmp\">\n<figure class=\"qf-figure good\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/seal-good-pallet-1024x576.jpg\" alt=\"Good pallet seal with cases flush against the QFM seal\"><figcaption><span class=\"tag\">&#10003; Do this<\/span> Cases flush to the QFM seal &mdash; no gap, no bypass air.<\/figcaption><\/figure>\n<figure class=\"qf-figure bad\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/seal-bad-pallet-1024x576.jpg\" alt=\"Bad pallet seal with a gap between the load and the QFM seal\"><figcaption><span class=\"tag\">&#10007; Avoid<\/span> A gap between the load and the seal lets blast air escape around the pallet.<\/figcaption><\/figure>\n<\/div>\n<div class=\"qf-cmp\">\n<figure class=\"qf-figure bad\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/stack-bad-front-overhang-1024x576.jpg\" alt=\"Product overhanging the front of the pallet\"><figcaption><span class=\"tag\">&#10007; Avoid<\/span> Product over the front of the pallet fouls the seal and the rack.<\/figcaption><\/figure>\n<figure class=\"qf-figure good\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/seal-short-stack-qfm-1024x576.jpg\" alt=\"A short pallet stack staged next to a QFM\"><figcaption><span class=\"tag\">&#10003; Do this<\/span> Short stacks still seal &mdash; AutoSeal form-fits to whatever height is in front of it.<\/figcaption><\/figure>\n<\/div>\n<div class=\"qf-eg-note\">\n<p><strong>Short and uneven stacks are the classic worst case.<\/strong> <a href=\"\/es\/autoseal\/\">AutoSeal<\/a> closes the gap a short pallet used to leave above it, so you don&rsquo;t have to drop cell temperature to compensate. Loading still matters &mdash; AutoSeal seals the <em>outside<\/em>; spacers and a square stack keep the <em>inside<\/em> moving.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"qf-section alt\">\n<div class=\"qf-container\">\n<h2>More Examples<\/h2>\n<p class=\"section-sub\">A few more good and not-so-good stacks from the floor.<\/p>\n<div class=\"qf-mini\">\n<figure class=\"qf-figure good\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/stack-good-short-1024x576.jpg\" alt=\"A correctly built short stack\"><figcaption><span style=\"color:#00a32a;font-weight:700;\">&#10003;<\/span> A clean short stack.<\/figcaption><\/figure>\n<figure class=\"qf-figure good\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/stack-good-banded-top-closeup-1024x576.jpg\" alt=\"Close-up of a banded top layer\"><figcaption><span style=\"color:#00a32a;font-weight:700;\">&#10003;<\/span> Banded top, up close.<\/figcaption><\/figure>\n<figure class=\"qf-figure good\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/qfm-booster-pallet-1024x576.jpg\" alt=\"A properly built booster pallet staged at a QFM\"><figcaption><span style=\"color:#00a32a;font-weight:700;\">&#10003;<\/span> Booster pallet staged correctly.<\/figcaption><\/figure>\n<figure class=\"qf-figure bad\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/stack-bad-damaged-no-spacers-1024x576.jpg\" alt=\"Damaged cases with no spacers\"><figcaption><span style=\"color:#d52a3f;font-weight:700;\">&#10007;<\/span> Damaged cases, no spacers.<\/figcaption><\/figure>\n<figure class=\"qf-figure bad\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/stack-bad-damaged-cases-spacers-1024x576.jpg\" alt=\"Damaged cases and crushed spacers\"><figcaption><span style=\"color:#d52a3f;font-weight:700;\">&#10007;<\/span> Crushed cases and spacers.<\/figcaption><\/figure>\n<figure class=\"qf-figure bad\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/qfm-short-pallet-gap-1024x576.jpg\" alt=\"A short pallet stack with an airflow gap at a QFM\"><figcaption><span style=\"color:#d52a3f;font-weight:700;\">&#10007;<\/span> Short stack leaving a bypass gap.<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"qf-section\">\n<div class=\"qf-container\">\n<h2>From the Field<\/h2>\n<p class=\"section-sub\">Real units on real freezer floors &mdash; the same airflow rules, photographed in service. The status light glowing through a pallet shows where cold air is (and isn&#8217;t) getting through.<\/p>\n<figure class=\"qf-figure\" style=\"margin:1rem 0 2rem;\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/pallet-good-bad-example-scaled.jpg\" alt=\"A QFM with a good pallet-loading example beside a bad one, airflow visible under the status light\"><figcaption><span style=\"color:#00a32a;font-weight:700;\">&#10003;<\/span> \/ <span style=\"color:#d52a3f;font-weight:700;\">&#10007;<\/span> Good and bad side by side &mdash; the lit pallet is pulling cold air through; the boxed stack beside it is not.<\/figcaption><\/figure>\n<div class=\"qf-mini\">\n<figure class=\"qf-figure good\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/pallet-booster-pallets-scaled.jpg\" alt=\"A QFM with booster pallets staged in front to maintain airflow\"><figcaption><span style=\"color:#00a32a;font-weight:700;\">&#10003;<\/span> Booster pallets staged to keep airflow moving.<\/figcaption><\/figure>\n<figure class=\"qf-figure good\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/pallet-loaded-unloaded-scaled.jpg\" alt=\"A QFM shown loaded and unloaded with the airflow status lighting visible\"><figcaption><span style=\"color:#00a32a;font-weight:700;\">&#10003;<\/span> Loaded for airflow &mdash; status light active.<\/figcaption><\/figure>\n<figure class=\"qf-figure bad\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/pallet-poor-airflow-top-scaled.jpg\" alt=\"A loaded pallet with restricted airflow through the top portion at a QFM\"><figcaption><span style=\"color:#d52a3f;font-weight:700;\">&#10007;<\/span> Poor airflow through the top of the pallet.<\/figcaption><\/figure>\n<figure class=\"qf-figure bad\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/pallet-pallets-in-front-scaled.jpg\" alt=\"Pallets staged directly in front of a QFM, restricting airflow to the unit\"><figcaption><span style=\"color:#d52a3f;font-weight:700;\">&#10007;<\/span> Pallets parked in front choke the QFM&#8217;s airflow.<\/figcaption><\/figure>\n<figure class=\"qf-figure bad\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/quickfreeze.com\/wp-content\/uploads\/2026\/06\/pallet-in-front-side-scaled.jpg\" alt=\"Side view of a pallet placed in front of a QFM blocking airflow\"><figcaption><span style=\"color:#d52a3f;font-weight:700;\">&#10007;<\/span> Same problem from the side &mdash; staged product blocking the unit.<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"qf-section\">\n<div class=\"qf-container\">\n<div class=\"qf-eg-pager\">\n<a href=\"\/es\/engineering-guide\/\">&larr; Back to the Engineering Guide<\/a><br \/>\n<a href=\"\/es\/engineering-guide\/racking\/\">Related: Racking &rarr;<\/a>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Engineering Guide &middot; Operator Best Practices Pallet Loading &amp; Airflow How a pallet is built and staged decides how fast &mdash; and how evenly &mdash; a QFM freezes it. Blast air has to travel through the pallet, not around it. These are the loading practices that get the most out of every cycle. Why Loading&#8230;<\/p>","protected":false},"author":0,"featured_media":0,"parent":96,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_titles_title":"Pallet Loading & Airflow for Blast Freezing | QuickFreeze QFM","_seopress_titles_desc":"How to stack, spacer, and seal pallets so a QFM blast freezer drives air through the load \u2014 good vs. bad loading examples from the floor.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"class_list":["post-421","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/quickfreeze.com\/es\/wp-json\/wp\/v2\/pages\/421","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quickfreeze.com\/es\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/quickfreeze.com\/es\/wp-json\/wp\/v2\/types\/page"}],"replies":[{"embeddable":true,"href":"https:\/\/quickfreeze.com\/es\/wp-json\/wp\/v2\/comments?post=421"}],"version-history":[{"count":3,"href":"https:\/\/quickfreeze.com\/es\/wp-json\/wp\/v2\/pages\/421\/revisions"}],"predecessor-version":[{"id":494,"href":"https:\/\/quickfreeze.com\/es\/wp-json\/wp\/v2\/pages\/421\/revisions\/494"}],"up":[{"embeddable":true,"href":"https:\/\/quickfreeze.com\/es\/wp-json\/wp\/v2\/pages\/96"}],"wp:attachment":[{"href":"https:\/\/quickfreeze.com\/es\/wp-json\/wp\/v2\/media?parent=421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}