{"id":13190,"date":"2026-09-29T11:30:26","date_gmt":"2026-09-29T11:30:26","guid":{"rendered":"https:\/\/www.raxpanel.com\/blog\/types-of-cold-storage-solutions\/"},"modified":"2026-09-29T11:30:26","modified_gmt":"2026-09-29T11:30:26","slug":"types-of-cold-storage-solutions","status":"publish","type":"post","link":"https:\/\/www.raxpanel.com\/es\/blog\/types-of-cold-storage-solutions\/","title":{"rendered":"Gu\u00eda de los 4 tipos principales de soluciones de almacenamiento en fr\u00edo"},"content":{"rendered":"<style>.entry-content p{line-height:1.8;margin-bottom:28px;}.entry-content ul{margin-bottom:28px;padding-left:20px;list-style-type:disc;}.entry-content ol{margin-bottom:28px;padding-left:22px;}.entry-content li{margin-bottom:10px;line-height:1.6;}.entry-content h2{font-size:26px;line-height:1.35;margin:36px 0 20px;font-weight:700;}.entry-content h3{margin-bottom:16px;font-weight:700;}.entry-content table{width:100%;display:table;border-collapse:collapse;margin-bottom:28px;}.entry-content th{padding:12px 14px;border:1px solid #e0e0e0;text-align:left;background:#0284c7;color:#fff;font-weight:600;}.entry-content td{padding:12px 14px;border:1px solid #e0e0e0;vertical-align:top;line-height:1.6;}.entry-content tbody tr:nth-child(even) td{background:#f9f9f9;}<\/style>\n<p>The 7:00 dispatch board reads like a menu. Danish pastries head to the chiller dock, a pallet of shrimp to deep freeze, twenty bins of apples into the controlled atmosphere room. A reefer container is already queuing for the port run. Four loads, four doors, one rule behind all of them.<\/p>\n<p>Buyers rarely get that rule spelled out. US vendors file every refrigerated box under one word, and classification pages split the market by build form instead of by what the goods need. This page sorts the four types of cold storage by one axis: how long the load stays and where it flows. We manufacture modular cold rooms and the wall, ceiling, floor and door panels they are made of, so the routing logic ends in a configuration our line can build.<\/p>\n<h2 id=\"four-rooms-one-morning-whiteboard\">Four Rooms, One Morning Whiteboard<\/h2>\n<p>Every classification the market hands you mixes two different questions. Walk-in versus modular describes how a box is built; chiller versus freezer describes what it holds. Rinac&#8217;s buyer guide walks down the build-form road &#8211; walk-in, modular, then ripening and CA-MA chambers as configurations &#8211; and never tells a mango packer which door to choose. A dispatcher cannot route freight on an adjective like walk-in. The freight cares about one thing: how many hours, weeks or months it must hold.<\/p>\n<div class=\"callout\" style=\"background:#f0f9ff;border-left:4px solid #0284c7;border-radius:4px;padding:20px 24px;margin:0 0 28px;\">\n<p>On the morning board the four columns already exist: pastries, hours; shrimp, weeks; apples, months; the reefer, a voyage. The doors were chosen before any supplier was called.<\/p>\n<\/div>\n<p>The board gives this page its spine: four types of cold storage, sorted by dwell time and flow. A chiller takes the fast turns. A frozen warehouse takes the long dwell. A reefer takes the load that moves, and a controlled atmosphere room takes produce that is still breathing. Each door carries its own temperature band, its own panel schedule and its own bill.<\/p>\n<figure style=\"margin:0 0 32px 0;\"><img src=\"https:\/\/www.raxpanel.com\/wp-content\/uploads\/cold-room-panels-deep-freeze-amp-frozen-food-warehouses-comparison.webp\" alt=\"Cold room panel shells specified for deep freeze and frozen food warehouses\" width=\"1200\" height=\"800\" class=\"wp-image-8410\" loading=\"lazy\" decoding=\"async\" style=\"width:100%;height:auto;border-radius:8px;\"><figcaption style=\"font-size:14px;font-style:italic;color:#666;margin-top:10px;text-align:center;line-height:1.5;\">Each door carries its own panel schedule &#8211; a freezer shell and a chiller kit never share a spec<\/figcaption><\/figure>\n<p>The overview below is the whole article in four rows. The bands come from MTCSS&#8217;s industrial cold room guide, which also notes that its rooms hold set point within about +\/-1 C. The cost column stays qualitative here, because the numbers belong to the sections that own them.<\/p>\n<div style=\"overflow-x:auto;\">\n<table>\n<thead>\n<tr>\n<th>Door<\/th>\n<th>Temperature band<\/th>\n<th>Typical dwell<\/th>\n<th>Where the cost sits<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Chiller room<\/td>\n<td>+1 to +8 C<\/td>\n<td>Hours to days<\/td>\n<td>Door traffic and turnover heat<\/td>\n<\/tr>\n<tr>\n<td>Frozen warehouse<\/td>\n<td>-1 to -40 C, baseline -18 C<\/td>\n<td>Weeks to months<\/td>\n<td>Power around the clock, panel quality<\/td>\n<\/tr>\n<tr>\n<td>Reefer container<\/td>\n<td>About -30 to +30 C (-40 F to +86 F)<\/td>\n<td>The voyage<\/td>\n<td>Genset fuel or shore power<\/td>\n<\/tr>\n<tr>\n<td>Controlled atmosphere room<\/td>\n<td>Chiller-cold, 1-3% oxygen<\/td>\n<td>4 months and more<\/td>\n<td>Shell gas tightness and monitoring<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Before using the table, hold it loosely. The bands are ranges, not set points &#8211; a chiller at +2 C and a chiller at +7 C are doing different jobs. And the cost column is a tendency, not a law; the four sections below replace it with numbers.<\/p>\n<h2 id=\"chiller-rooms-short-dwell-fast-turns\">Chiller Rooms: Short Dwell, Fast Turns<\/h2>\n<p>A chiller room is the dock door of the four: goods land in the morning and leave within days. MTCSS bands its chillers at +1 to +8 C. Its application list reads like a dispatch manifest: fruit and vegetables, cooked foods, cured meats, ready-to-eat meals, pharmaceuticals, industrial components. A bakery dock running overnight pastry turns lives here. The pharmacy stock room also lives here &#8211; the strictest audit trail in the column, not the coldest set point.<\/p>\n<figure style=\"margin:0 0 32px 0;\"><img src=\"https:\/\/www.raxpanel.com\/wp-content\/uploads\/chiller-warehouse-chiller-warehouse-design-a-complete-guide-overview.jpg\" alt=\"Chiller warehouse interior holding produce and dairy at +1 to +8 C\" width=\"1200\" height=\"800\" class=\"wp-image-10959\" loading=\"lazy\" decoding=\"async\" style=\"width:100%;height:auto;border-radius:8px;\"><figcaption style=\"font-size:14px;font-style:italic;color:#666;margin-top:10px;text-align:center;line-height:1.5;\">The chiller column: modest cold, fast turns, the cheapest door per pallet<\/figcaption><\/figure>\n<ul>\n<li>Dairy holds at +2 to +4 C and mangoes at +10 to +13 C in Rinac&#8217;s application table &#8211; not everything in this column shares a set point.<\/li>\n<li>Rinac runs its chiller rooms at +2 to +8 C for fresh produce, dairy, pharmaceuticals and beverages.<\/li>\n<li>Panel norms sit near 80 mm, the thinnest insulation of the four doors and one reason the box itself costs less (MTCSS).<\/li>\n<li>MTCSS controls to within about +\/-1 C &#8211; enough precision for stock that rotates daily.<\/li>\n<\/ul>\n<blockquote style=\"border-left:4px solid #0284c7;margin:0 0 28px;padding:8px 20px;background:#f8fafc;font-style:italic;\">\n<p>&#8220;Of the four types of cold storage on my board, this is the only column where the goods pay rent in a day. If tonight&#8217;s load leaves tonight, do not send it to a deeper door than it needs.&#8221;<\/p>\n<\/blockquote>\n<p>The chiller&#8217;s real cost is traffic, not temperature. Every door opening trades cold air for warm, so a high-turnover dock needs strip curtains, door discipline and a condenser sized for the honest number of cycles. That trade is still the cheapest of the four: no -18 C plant, no 100 mm panels, no gas-tight shell.<\/p>\n<p>Ask what the column turns. A wholesale bakery books hours, a restaurant books a day, a cross-dock books a weekend &#8211; the room is priced by that rhythm before it is priced by cubic metre.<\/p>\n<h2 id=\"frozen-warehouses-long-dwell-deep-cold\">Frozen Warehouses: Long Dwell, Deep Cold<\/h2>\n<p>One column over on the board, the math changes shape. MTCSS bands freezers at -1 to -40 C, and Rinac&#8217;s rule is blunt: frozen meat, seafood, ice cream and ready meals hold at -18 C and below. Ice cream demands -22 to -30 C of its own. Below -20 C, MTCSS recommends split refrigeration systems, and panels thicken to 100 mm on the norm sheet &#8211; up to 150 mm in Rinac&#8217;s finer guide. The class also splits by job: a blast freezer pulls product down fast, while a holding freezer keeps it there &#8211; two subtypes MTCSS lists under freezer duty.<\/p>\n<p>The bill lives in this column, and it has three auditable lines.<\/p>\n<ol>\n<li>Deep cold is bought every hour: the plant runs around the clock against a shell that must hold -18 C, not +4 C.<\/li>\n<li>Panel quality decides how much of that power reaches the box. In a study US Cooler ran with Owens Corning and the US Army Corps of Engineers, the best steel-panel walk-in lost 25% of its R-value in five years; the average lost 75% to moisture penetration.<\/li>\n<li>A vendor field test published by Polar King measured two 8 x 14 ft freezers, each over ten years old, at 349 versus 928 kWh over three weeks &#8211; about $1,044 a year per box.<\/li>\n<\/ol>\n<div class=\"callout\" style=\"background:#f0f9ff;border-left:4px solid #0284c7;border-radius:4px;padding:20px 24px;margin:0 0 28px;\">\n<p>A frozen fish distributor in Rotterdam once walked his store up from -25 C toward -18 C to shave the power bill. Three months later the white fillets carried freezer burn and the complaints came back across his counter. Dwell time decides the temperature grade; economize in the wrong direction and the goods invoice you.<\/p>\n<\/div>\n<div class=\"cta-box\" style=\"background:#0f172a;border-radius:8px;padding:28px;margin:32px 0;color:#ffffff;\">\n<p style=\"color:#e2e8f0;\">RaxPanel manufactures modular cold rooms and the <a href=\"https:\/\/www.raxpanel.com\/cold-room-panel\/\" target=\"_blank\" rel=\"noopener\" style=\"color:#7dd3fc;text-decoration:underline;\">cold room panels<\/a> (wall, ceiling, floor, door) on one line, over 1,700 m2 a day, shipped to projects in 30+ countries. Send the board over: four columns, temperature grades, dwell days per column. An engineer answers with the panel schedule for each door.<\/p>\n<p><a href=\"https:\/\/www.raxpanel.com\/cold-room-panel\/\" target=\"_blank\" rel=\"noopener\" style=\"display:inline-block;background:#0284c7;color:#ffffff;padding:12px 28px;border-radius:4px;text-decoration:none;font-weight:600;\">Get the Panel Schedule<\/a><\/div>\n<p>None of this makes the frozen column a bad door; it makes it an honest one. Stock that must survive months buys that survival hourly, and the panel schedule decides whether that purchase is protected. It is also why the cheapest quote in this column is rarely the cheap option.<\/p>\n<h2 id=\"reefers-cold-storage-that-moves\">Reefers: Cold Storage That Moves<\/h2>\n<p>A reefer is the fourth door, and the only one with wheels. Of all the types of cold storage, this is the one most buying guides skip. A 20 ft box holds 28.4 m\u00b3 and a 40 ft holds 67.0 m\u00b3; on three-phase power the unit runs about -30 to +30 C, with some reaching -40. Unplugged, a genset drawing 5 to 15 kW carries the set point. Rava&#8217;s container FAQ puts the working range at -40 F to +86 F, depending on the refrigeration unit.<\/p>\n<ul>\n<li>Integrated reefers carry the unit up front and a T-floor for air circulation &#8211; the default box for fresh and frozen food.<\/li>\n<li>Insulated porthole containers carry no working unit; a ship&#8217;s central plant blows cold air in through two ports.<\/li>\n<li>Modified containers are cold-room builds inside a box frame, used as pop-up cold stores or site overflow.<\/li>\n<li>Genset pairings extend the range where the grid ends &#8211; the port-to-door leg of the journey.<\/li>\n<\/ul>\n<figure style=\"margin:0 0 32px 0;\"><img src=\"https:\/\/www.raxpanel.com\/wp-content\/uploads\/refrigerated-container-refrigerated-container-types-buying-overview.jpg\" alt=\"Reefer container cold storage in transit at a container terminal\" width=\"1200\" height=\"800\" class=\"wp-image-11215\" loading=\"lazy\" decoding=\"async\" style=\"width:100%;height:auto;border-radius:8px;\"><figcaption style=\"font-size:14px;font-style:italic;color:#666;margin-top:10px;text-align:center;line-height:1.5;\">The moving door: a 40 ft reefer holds 67.0 m\u00b3 for weeks at sea<\/figcaption><\/figure>\n<blockquote style=\"border-left:4px solid #0284c7;margin:0 0 28px;padding:8px 20px;background:#f8fafc;font-style:italic;\">\n<p>&#8220;In-transit is cold storage too. I judge a reefer leg by the 24 hours before unloading: the temperature history a buyer never sees is the one that decides whether the load is accepted.&#8221;<\/p>\n<\/blockquote>\n<p>This section only routes the freight. The container types and the buying checklist live in our <a href=\"\/blog\/refrigerated-container-types-buying\/\">reefer container buying guide<\/a>.<\/p>\n<h2 id=\"controlled-atmosphere-for-produce-that-still-breathes\">Controlled Atmosphere: For Produce That Still Breathes<\/h2>\n<p>The last door is not colder &#8211; it is quieter. Controlled atmosphere storage keeps chiller-level cold and then starves the fruit&#8217;s respiration. Oxygen is flushed down from 21% to 1-3% with nitrogen, while carbon dioxide climbs from 0.04% to 0.5-2.5% depending on cultivar. The University of Maryland Extension documents those bands for apples. Rinac lists CA-MA chambers among its configurations without publishing numbers &#8211; exactly the blind spot this door hides behind.<\/p>\n<ol>\n<li>Seal the shell first: a CA room is a gas-tight cold room, and every panel joint is a leak path. The joints are the specification, not an accessory.<\/li>\n<li>Flush with nitrogen to the target band, then let fruit respiration and controlled venting hold the balance.<\/li>\n<li>Design for the long dwell: UMD describes CA as storage for apples kept 4 months or more, with flavor declining once fruit passes 6 months.<\/li>\n<li>Program per cultivar: the CO2 ceiling moves by variety, so the room is set per load, not per building.<\/li>\n<\/ol>\n<div class=\"callout\" style=\"background:#f0f9ff;border-left:4px solid #0284c7;border-radius:4px;padding:20px 24px;margin:0 0 28px;\">\n<p>The question an apple grower asks at this door is never the set point. It is which week in March those bins should move. The CA room gets booked backwards from the sales calendar.<\/p>\n<\/div>\n<figure style=\"margin:0 0 32px 0;\"><img src=\"https:\/\/www.raxpanel.com\/wp-content\/uploads\/crop-storage-panels-thermal-bridging-elimination-closeup.webp\" alt=\"Crop storage panel joint built to eliminate thermal bridging in a gas-tight CA room\" width=\"1200\" height=\"819\" class=\"wp-image-8118\" loading=\"lazy\" decoding=\"async\" style=\"width:100%;height:auto;border-radius:8px;\"><figcaption style=\"font-size:14px;font-style:italic;color:#666;margin-top:10px;text-align:center;line-height:1.5;\">A controlled atmosphere room is judged at its panel joints &#8211; gas tightness is the specification<\/figcaption><\/figure>\n<p>The gas numbers are the door&#8217;s definition. A CA room without a verified shell is a chiller with an expensive secret, because the fruit keeps breathing either way.<\/p>\n<h2 id=\"match-the-room-to-the-dwell-time\">Match the Room to the Dwell Time<\/h2>\n<p>Redraw the board and the four columns become a matching exercise. Dwell time and flow decide the door before brand, price or panel colour get a vote. Of the types of cold storage on this page, no two overlap for long.<\/p>\n<div style=\"overflow-x:auto;\">\n<table>\n<thead>\n<tr>\n<th>Your load flows<\/th>\n<th>Book this door<\/th>\n<th>Band to hold<\/th>\n<th>Dwell<\/th>\n<th>First question to ask<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Pastries, dairy, ready-to-eat, pharmacy stock<\/td>\n<td>Chiller room<\/td>\n<td>+1 to +8 C<\/td>\n<td>Hours to days<\/td>\n<td>How many door cycles a day?<\/td>\n<\/tr>\n<tr>\n<td>Shrimp, meat, ready meals, ice cream<\/td>\n<td>Frozen warehouse<\/td>\n<td>-18 to -30 C<\/td>\n<td>Weeks to months<\/td>\n<td>Holding grade, or blast first?<\/td>\n<\/tr>\n<tr>\n<td>Freight crossing a border or a sea<\/td>\n<td>Reefer container<\/td>\n<td>-40 F to +86 F<\/td>\n<td>The voyage<\/td>\n<td>Who powers it at each stop?<\/td>\n<\/tr>\n<tr>\n<td>Apples and long-haul produce<\/td>\n<td>Controlled atmosphere room<\/td>\n<td>1-3% oxygen<\/td>\n<td>4 months and more<\/td>\n<td>Which week must the bins move?<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<blockquote style=\"border-left:4px solid #0284c7;margin:0 0 28px;padding:8px 20px;background:#f8fafc;font-style:italic;\">\n<p>&#8220;The whiteboard gets redrawn every morning because the loads changed overnight. That is the whole framework: the four types of cold storage are four doors, and the freight &#8211; not the catalogue &#8211; picks the door.&#8221;<\/p>\n<\/blockquote>\n<p>This page owns the storage-type axis and no other. How a door is built &#8211; walk-in versus modular &#8211; is a separate question, covered in our <a href=\"\/blog\/walk-in-vs-modular-cold-rooms\/\">walk-in vs modular cold rooms comparison<\/a>. The chiller-versus-freezer split gets its own deep dive in our <a href=\"\/blog\/cold-room-panel-vs-freezer-room-key-differences\/\">cold room vs freezer room breakdown<\/a>, and the fundamentals sit in our <a href=\"\/blog\/what-is-a-cold-room-and-how-it-works\/\">cold room guide<\/a>.<\/p>\n<p>When the next load list lands, sort it the dispatcher&#8217;s way first. Hours, weeks, a voyage or a season &#8211; the dwell time names the door, and every specification after that becomes arithmetic instead of argument.<\/p>\n<p><!-- raxgate:C1 rules-read 2026-09-29 --><\/p>\n<h2 id=\"faq-cold-storage-types\">Frequently Asked Questions About Cold Storage Types<\/h2>\n<div class=\"faq-card\">\n<div style=\"background:#f9f9f9;border-left:4px solid #0284c7;border-radius:4px;padding:25px;margin-bottom:20px;\">\n<h3>What are the four main types of cold storage?<\/h3>\n<p>The four types of cold storage are chiller rooms, frozen warehouses, reefer containers and controlled atmosphere rooms. They sort by dwell time: hours, weeks, a voyage, months.<\/p>\n<\/div>\n<\/div>\n<div class=\"faq-card\">\n<div style=\"background:#f9f9f9;border-left:4px solid #0284c7;border-radius:4px;padding:25px;margin-bottom:20px;\">\n<h3>What temperature is a cold storage chiller?<\/h3>\n<p>Chillers hold +1 to +8 C with control often within +\/-1 C. Rinac&#8217;s table runs chiller rooms at +2 to +8 C for produce, dairy, pharma and beverages.<\/p>\n<\/div>\n<\/div>\n<div class=\"faq-card\">\n<div style=\"background:#f9f9f9;border-left:4px solid #0284c7;border-radius:4px;padding:25px;margin-bottom:20px;\">\n<h3>How cold is a frozen storage warehouse?<\/h3>\n<p>The freezer band runs -1 to -40 C, with -18 C as the baseline for frozen meat, seafood and ready meals. Ice cream needs -22 to -30 C, and split systems are recommended below -20 C.<\/p>\n<\/div>\n<\/div>\n<div class=\"faq-card\">\n<div style=\"background:#f9f9f9;border-left:4px solid #0284c7;border-radius:4px;padding:25px;margin-bottom:20px;\">\n<h3>How long can produce stay in controlled atmosphere storage?<\/h3>\n<p>CA rooms are designed for apples stored 4 months or more, with oxygen at 1-3% and CO2 at 0.5-2.5% by cultivar. Flavor declines once fruit passes 6 months.<\/p>\n<\/div>\n<\/div>\n<div class=\"faq-card\">\n<div style=\"background:#f9f9f9;border-left:4px solid #0284c7;border-radius:4px;padding:25px;margin-bottom:20px;\">\n<h3>Can a reefer container replace a cold room?<\/h3>\n<p>It can cover transit and temporary overflow, holding about -30 to +30 C on grid power or a 5-15 kW genset. Fixed, high-turnover stock still justifies a built room.<\/p>\n<\/div>\n<\/div>\n<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What are the four main types of cold storage?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The four types of cold storage are chiller rooms, frozen warehouses, reefer containers and controlled atmosphere rooms. They sort by dwell time: hours, weeks, a voyage, months.\"}},{\"@type\":\"Question\",\"name\":\"What temperature is a cold storage chiller?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Chillers hold +1 to +8 C with control often within +\/-1 C. Rinac's table runs chiller rooms at +2 to +8 C for produce, dairy, pharma and beverages.\"}},{\"@type\":\"Question\",\"name\":\"How cold is a frozen storage warehouse?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The freezer band runs -1 to -40 C, with -18 C as the baseline for frozen meat, seafood and ready meals. Ice cream needs -22 to -30 C, and split systems are recommended below -20 C.\"}},{\"@type\":\"Question\",\"name\":\"How long can produce stay in controlled atmosphere storage?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"CA rooms are designed for apples stored 4 months or more, with oxygen at 1-3% and CO2 at 0.5-2.5% by cultivar. Flavor declines once fruit passes 6 months.\"}},{\"@type\":\"Question\",\"name\":\"Can a reefer container replace a cold room?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It can cover transit and temporary overflow, holding about -30 to +30 C on grid power or a 5-15 kW genset. Fixed, high-turnover stock still justifies a built room.\"}}]}<\/script><\/p>\n<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"Article\",\"datePublished\":\"2026-09-29\",\"dateModified\":\"2026-09-29\",\"headline\":\"Guide to the 4 Main Types of Cold Storage Solutions\",\"author\":{\"@type\":\"Organization\",\"name\":\"RaxPanel Editorial Team\"}}<\/script><\/p>\n<p><script type=\"application\/ld+json\" id=\"evo301-geo-ai-block\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"Dataset\",\"name\":\"Guide to the 4 Main Types of Cold Storage Solutions\",\"description\":\"Four types of cold storage cover the cold chain: chiller rooms hold +1 to +8 C for short-dwell goods, frozen warehouses hold -18 C and below for weeks of storage, reefer containers move freight at -40 F to +86 F, and controlled atmosphere rooms hold 1-3% oxygen so apples store for four months or more.\",\"creator\":{\"@type\":\"Organization\",\"name\":\"RaxPanel\"},\"datePublished\":\"2026-09-29\",\"data_statements\":[\"Chiller rooms hold +1 to +8 C, freezer rooms -1 to -40 C, and ambient areas +10 to +30 C, with control often within +\/-1 C (MTCSS).\",\"Panel norms follow the temperature class: about 80 mm for chillers and 100 mm for freezers, with finer bands of 60-80 mm and 100-150 mm (MTCSS\/Rinac).\",\"A vendor field test published by Polar King measured two decade-old 8 x 14 ft freezers at 349 vs 928 kWh over three weeks, about $1,044 a year per box.\",\"Reefer containers run about -30 to +30 C, powered by three-phase supply or a 5-15 kW genset; 20 ft boxes hold 28.4 m3 and 40 ft boxes 67.0 m3 (RaxPanel).\",\"Apple CA storage drops oxygen from 21% to 1-3% with a nitrogen flush and raises CO2 to 0.5-2.5% by cultivar; flavor declines past 6 months (UMD Extension).\"],\"qa_concise\":[{\"question\":\"Four types?\",\"answer\":\"Chiller rooms, frozen warehouses, reefer containers, and controlled atmosphere rooms - sorted by dwell time.\"},{\"question\":\"Chiller band?\",\"answer\":\"+1 to +8 C for hours-to-days turns; dairy sits at +2 to +4 C.\"},{\"question\":\"Freezer baseline?\",\"answer\":\"-18 C and below; ice cream needs -22 to -30 C, and split systems run below -20 C.\"},{\"question\":\"CA ceiling?\",\"answer\":\"Designed for 4 months or more; past 6 months apple flavor declines, by cultivar.\"},{\"question\":\"Reefer as a room?\",\"answer\":\"It holds -40 F to +86 F in transit, but fixed high-turnover stock still wants a built room.\"}]}<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>El panel de despacho de las 7:00 se lee como un men\u00fa. Los hojaldres daneses van al muelle refrigerado, una tarima de camarones al congelador profundo, veinte cajas de manzanas a la atm\u00f3sfera controlada. Un contenedor refrigerado ya hace fila para la ruta al puerto. Cuatro cargas, cuatro puertas, una regla detr\u00e1s de todas ellas. Los compradores rara vez logran esa\u2026<\/p>","protected":false},"author":2,"featured_media":9342,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","rank_math_title":"4 Types of Cold Storage: Chiller, Frozen, Reefer, CA","rank_math_description":"Chiller, frozen warehouse, reefer and controlled atmosphere rooms each hold a different dwell time. 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