{"id":5242,"date":"2026-10-30T20:35:59","date_gmt":"2026-10-31T04:35:59","guid":{"rendered":"https:\/\/darkemachinery.com\/?p=5242"},"modified":"2026-10-30T23:25:00","modified_gmt":"2026-10-31T07:25:00","slug":"salmon-cooling-and-washing","status":"publish","type":"post","link":"https:\/\/darkemachinery.com\/zh\/salmon-cooling-and-washing\/","title":{"rendered":"Salmon Cooling and Washing: 40HP IndustrialChiller"},"content":{"rendered":"<h2 class=\"wp-block-heading\"><strong>1. Intro<\/strong><strong><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Salmon is one of the most perishable seafood products in the world. From the moment it is harvested, temperature control decides freshness, shelf life, and food safety. <strong>Salmon cooling and washing<\/strong>&nbsp;is therefore a critical step in every processing line: the fish must be chilled quickly and washed in clean, cold water to slow bacterial growth and maintain quality.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>40 HP industrial chiller<\/strong>&nbsp;is an excellent, proven solution for this application. It supplies low-temperature water through a glycol loop and a plate heat exchanger, cooling the wash tank and the salmon inside to a safe temperature. This guide explains why <strong>salmon cooling and washing<\/strong>&nbsp;matters, how a 40 HP chiller system works, what capacity it can handle, and a 6-step method to design your own line.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>2. Table of Contents<\/strong><strong><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"#1-intro\"><u>1. Intro<\/u><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"#2-table-of-contents\"><u>2. Table of Contents<\/u><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"#3-why-salmon-cooling--washing-matters\"><u>3. Why Salmon Cooling &amp; Washing Matters<\/u><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"#4-the-salmon-cooling--washing-system-40-hp-chiller--glycol-loop\"><u>4. The Salmon Cooling &amp; Washing System: 40 HP Chiller + Glycol Loop<\/u><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"#5-how-the-system-works\"><u>5. How the System Works<\/u><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"#6-capacity-check-what-a-40-hp-chiller-can-handle\"><u>6. Capacity Check: What a 40 HP Chiller Can Handle<\/u><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"#7-how-to-design-your-salmon-cooling--washing-line-in-6-steps\"><u>7. How to Design Your Salmon Cooling &amp; Washing Line in 6 Steps<\/u><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"#8-faq-salmon-cooling--washing\"><u>8. FAQ: Salmon Cooling &amp; Washing<\/u><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"#9-conclusion\"><u>9. Conclusion<\/u><\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>3. Why Salmon cooling and washing Matters<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Salmon quality and safety depend on keeping the fish cold from harvest to processing. High temperature causes three serious problems:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Rapid spoilage.<\/strong>&nbsp;Warm salmon spoils quickly as enzymes and bacteria multiply, reducing shelf life and value.<\/li>\n\n\n\n<li><strong>Microbial risk.<\/strong>&nbsp;Pathogens such as <em>Listeria monocytogenes<\/em>&nbsp;can grow on cold-smoked and raw salmon. Food authorities recommend HACCP systems and strict temperature control to manage this risk \u2014 see the <a href=\"https:\/\/www.cfs.gov.hk\/english\/multimedia\/multimedia_pub\/multimedia_pub_fsf_106_01.html\" target=\"_blank\" rel=\"noopener\"><u>Centre for Food Safety guidance on cold-smoked salmon<\/u><\/a>.<\/li>\n\n\n\n<li><strong>Poor washing.<\/strong>&nbsp;Cleaning must happen in cold water; warm wash water becomes a breeding ground rather than a cleaning medium.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Regulators consistently advise keeping seafood cold throughout processing \u2014 the Australian\/New Zealand food authority, for example, emphasizes &#8220;keep it cold&#8221; as the first rule for raw fish handling<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is why <strong>salmon cooling and washing<\/strong>&nbsp;with a reliable chiller is not optional in a professional facility.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>4. The <strong>Salmon cooling and washing<\/strong> System: 40 HP Chiller + Glycol Loop<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The recommended system for a salmon processing line has four main parts working together:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/darkemachinery.com\/zh\/product\/40hp-110kw-air-cooled-water-chiller\/\" data-type=\"page\" data-id=\"2905\">40 HP industrial chiller<\/a><\/strong>\u00a0\u2014 produces low-temperature cooling, typically running a <strong>glycol loop<\/strong>\u00a0to avoid freezing and corrosion issues.<\/li>\n\n\n\n<li><strong>Glycol storage tank<\/strong>&nbsp;\u2014 buffers the chilled glycol, smoothing load fluctuations.<\/li>\n\n\n\n<li><strong>Plate heat exchanger<\/strong>&nbsp;\u2014 transfers cold from the glycol side to the clean water side without mixing the two fluids (a food-safety advantage).<\/li>\n\n\n\n<li><strong>Cold wash \/ chill tank<\/strong>&nbsp;\u2014 where salmon is cooled and washed in low-temperature water.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The diagram below shows this layout: the chiller cools a glycol loop, which cools the wash water through a plate heat exchanger, keeping the salmon tank at the target temperature.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"934\" height=\"581\" src=\"https:\/\/darkemachinery.com\/wp-content\/uploads\/2026\/10\/blog-4-Picture-1-1.webp\" alt=\"\" class=\"wp-image-5245\" srcset=\"https:\/\/darkemachinery.com\/wp-content\/uploads\/2026\/10\/blog-4-Picture-1-1.webp 934w, https:\/\/darkemachinery.com\/wp-content\/uploads\/2026\/10\/blog-4-Picture-1-1-300x187.webp 300w, https:\/\/darkemachinery.com\/wp-content\/uploads\/2026\/10\/blog-4-Picture-1-1-768x478.webp 768w, https:\/\/darkemachinery.com\/wp-content\/uploads\/2026\/10\/blog-4-Picture-1-1-18x12.webp 18w, https:\/\/darkemachinery.com\/wp-content\/uploads\/2026\/10\/blog-4-Picture-1-1-600x373.webp 600w\" sizes=\"(max-width: 934px) 100vw, 934px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Why use a glycol loop and heat exchanger\uff1fSalmon Cooling\u00a0and\u00a0Washing<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>No cross-contamination.<\/strong>&nbsp;The glycol never touches the salmon; a plate heat exchanger separates the fluids cleanly.<\/li>\n\n\n\n<li><strong>Lower, stable temperatures.<\/strong>&nbsp;Glycol allows the chiller to run at temperatures below freezing without the water freezing in the evaporator.<\/li>\n\n\n\n<li><strong>Flexible layout.<\/strong>&nbsp;The chiller can sit outside or at a distance, while the wash tanks are inside the clean processing area.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>5. How the Salmon Cooling\u00a0and\u00a0Washing<\/strong> <strong>System Works<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The process follows a continuous circulation loop:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The <strong>40 HP chiller<\/strong>&nbsp;cools the glycol in a storage tank to the set temperature.<\/li>\n\n\n\n<li>A pump circulates the cold glycol through the <strong>plate heat exchanger<\/strong>.<\/li>\n\n\n\n<li>On the other side of the exchanger, clean process water is cooled without mixing with the glycol.<\/li>\n\n\n\n<li>The cold water feeds the <strong>Salmon cooling and washing tank<\/strong>, where salmon is cooled and cleaned.<\/li>\n\n\n\n<li>Warmer water returns to the heat exchanger to be re-cooled, and the cycle continues.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">This arrangement keeps the salmon at a low, stable temperature throughout cleaning \u2014 exactly what <strong>salmon cooling and washing<\/strong>&nbsp;requires for quality and safety.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>6. Capacity Check: What a 40 HP Chiller Can Handle<\/strong><strong><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>40 HP<\/strong>&nbsp;chiller delivers roughly <strong>120 kW<\/strong>&nbsp;of cooling at standard conditions (capacity varies by manufacturer and operating point \u2014 confirm with the chiller&#8217;s nameplate data). On the water side, the cooling capacity is determined by:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cooling water flow (L\/min) = Capacity (kW) \u00f7 (\u0394T \u00b0C \u00d7 0.0698)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Using this check, a 40 HP (\u2248120 kW) chiller can cool roughly:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Water temperature rise (\u0394T)<\/td><td>Handled flow rate<\/td><\/tr><tr><td>3\u00b0C<\/td><td>\u2248 573 L\/min (34.4 m\u00b3\/h)<\/td><\/tr><tr><td>5\u00b0C<\/td><td>\u2248 344 L\/min (20.6 m\u00b3\/h)<\/td><\/tr><tr><td>8\u00b0C<\/td><td>\u2248 215 L\/min (12.9 m\u00b3\/h)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">For a salmon wash line that needs low-temperature water (typically 2\u20138\u00b0C), this capacity supports a meaningful wash-water flow while holding the tank cold. These are engineering estimates \u2014 the exact figure depends on your line&#8217;s flow, inlet temperature, batch load, and ambient conditions, and should be confirmed with your engineer.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>7. How to Design Your<strong><strong> <\/strong><\/strong><\/strong>Salmon Cooling\u00a0and\u00a0Washing<strong><strong> <\/strong>Line in 6 Steps<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Use this six-step method to design a 40 HP chiller system for your own salmon processing line.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 1 \u2014 Define the process requirement<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Determine the wash\/chill water temperature you need (typically 2\u20138\u00b0C for salmon), the water flow rate, and the peak batch load of fish to be chilled.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 2 \u2014 Calculate the cooling load<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Sum the heat gains: incoming fish temperature and mass, wash-water make-up, heat from the environment, and equipment. This gives your required capacity.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 3 \u2014 Select the chiller<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Choose a chiller (here, <strong>40 HP \u2248 120 kW<\/strong>) that meets the load with a safety margin, and confirm it can deliver water at your required temperature in your ambient conditions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 4 \u2014 Design the glycol and heat-exchange loop<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Size the glycol loop, storage tank, and <strong>plate heat exchanger<\/strong>&nbsp;so the chilled water reaches the wash tank at the right temperature and flow.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 5 \u2014 Lay out the wash \/ chill tank<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Size the tank for your batch throughput and ensure good water circulation so all salmon cool evenly. Position the tank inside the clean processing area.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 6 \u2014 Add controls and food-safety safeguards<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Use a controller to hold the water temperature and add monitoring\/alarms. Follow HACCP principles and use food-grade, cleanable materials.<\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img decoding=\"async\" width=\"683\" height=\"384\" src=\"https:\/\/darkemachinery.com\/wp-content\/uploads\/2026\/10\/blog-4-Picture-2-1.webp\" alt=\"Salmon Cooling and Washing\" class=\"wp-image-5249 size-full\" srcset=\"https:\/\/darkemachinery.com\/wp-content\/uploads\/2026\/10\/blog-4-Picture-2-1.webp 683w, https:\/\/darkemachinery.com\/wp-content\/uploads\/2026\/10\/blog-4-Picture-2-1-300x169.webp 300w, https:\/\/darkemachinery.com\/wp-content\/uploads\/2026\/10\/blog-4-Picture-2-1-18x10.webp 18w, https:\/\/darkemachinery.com\/wp-content\/uploads\/2026\/10\/blog-4-Picture-2-1-600x337.webp 600w\" sizes=\"(max-width: 683px) 100vw, 683px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>8. FAQ: <\/strong>Salmon Cooling\u00a0and\u00a0Washing<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q1: What temperature should salmon wash and chill water be?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Typically 2\u20138\u00b0C. Keeping the fish near ice temperature slows bacterial growth and preserves quality. The exact value depends on your process and HACCP plan.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q2: Why use a 40 HP chiller instead of ice?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A chiller provides a continuous, stable supply of cold water without the cost, handling, and temperature swings of buying and replenishing ice. It is easier to control and scale.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q3: Why a glycol loop and plate heat exchanger?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Glycol lets the chiller run at low temperatures without freezing, and the plate heat exchanger keeps glycol separate from the food-contact water \u2014 a clean, food-safe design.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q4: How much cooling can a 40 HP chiller provide?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Roughly 120 kW at standard conditions, which supports roughly 344 L\/min of water cooled through a 5\u00b0C temperature rise. Confirm with your engineer using your real load.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q5: Is salmon cooling and washing required for food safety?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Temperature control is a critical control point in seafood HACCP plans to limit pathogen growth and spoilage. Cold, clean wash water is part of good manufacturing practice.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q6: Can the system be expanded?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Because the chiller feeds a central chilled loop, you can add more heat exchangers and wash tanks and increase chiller capacity as production grows.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>9. Conclusion<\/strong><strong><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Salmon cooling and washing<\/strong>&nbsp;is a critical step in every processing line, and a <strong>40 HP industrial chiller<\/strong>&nbsp;is a proven, food-safe way to do it. The chiller cools a glycol loop; a plate heat exchanger transfers that cold to clean wash water; and the salmon is held at a low, stable temperature through cleaning. The approach is reliable, hygienic, and easy to scale.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you are looking for a reliable seafood cooling solution, <strong>DAEKE<\/strong>&nbsp;provides customized chillers and cooling systems for the food industry. Contact us for free technical support and quotation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00a0<a href=\"https:\/\/darkemachinery.com\/zh\/contact-2\/\"><u>Contact Us<\/u><\/a>\u00a0\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>\u2013 Country: Korea<br \/>\n\u2013 Industry: Salmon Cooling and Washing<\/p>","protected":false},"author":1,"featured_media":5249,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[198],"tags":[],"class_list":["post-5242","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-project-cases"],"_links":{"self":[{"href":"https:\/\/darkemachinery.com\/zh\/wp-json\/wp\/v2\/posts\/5242","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/darkemachinery.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/darkemachinery.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/darkemachinery.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/darkemachinery.com\/zh\/wp-json\/wp\/v2\/comments?post=5242"}],"version-history":[{"count":3,"href":"https:\/\/darkemachinery.com\/zh\/wp-json\/wp\/v2\/posts\/5242\/revisions"}],"predecessor-version":[{"id":5251,"href":"https:\/\/darkemachinery.com\/zh\/wp-json\/wp\/v2\/posts\/5242\/revisions\/5251"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/darkemachinery.com\/zh\/wp-json\/wp\/v2\/media\/5249"}],"wp:attachment":[{"href":"https:\/\/darkemachinery.com\/zh\/wp-json\/wp\/v2\/media?parent=5242"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/darkemachinery.com\/zh\/wp-json\/wp\/v2\/categories?post=5242"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/darkemachinery.com\/zh\/wp-json\/wp\/v2\/tags?post=5242"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}