{"id":7923,"date":"2023-09-25T11:00:00","date_gmt":"2023-09-25T17:00:00","guid":{"rendered":"https:\/\/www.zters.com\/blog\/?p=7923"},"modified":"2025-12-16T18:36:00","modified_gmt":"2025-12-16T18:36:00","slug":"grease-trap-vs-grease-interceptor-whats-the-difference","status":"publish","type":"post","link":"https:\/\/www.zters.com\/blog\/grease-trap-vs-grease-interceptor-whats-the-difference","title":{"rendered":"Grease Trap vs. Grease Interceptor: What\u2019s the Difference?"},"content":{"rendered":"\n<p>Commercial kitchens are often fast-paced environments, leaving little time to worry about if fats, oil, and grease are being effectively managed. For this reason and many more, grease traps (and <a href=\"https:\/\/www.zters.com\/grease-trap-cleaning\">grease trap cleaning<\/a> for that matter) are a critical part of any successful establishment.<\/p>\n\n\n\n<p>Grease traps have been around for <a href=\"https:\/\/restaurant-ingthroughhistory.com\/tag\/grease-traps\/\">well over a century<\/a> and their build has remained relatively unchanged since then. Hey, if it\u2019s not broken, don\u2019t fix it.&nbsp;<\/p>\n\n\n\n<p>There\u2019s another unit, however, that has commercial kitchen managers wondering if they\u2019re using the best possible grease trapping option: the grease interceptor.<\/p>\n\n\n\n<p>Both grease traps and grease interceptors keep fats, oil, and grease (FOG) from entering the sewage system, but how are they different? Here\u2019s a refresher on what grease traps and grease interceptors are, how they differ, and why they\u2019re essential.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-is-a-grease-trap\">What is a grease trap?<\/h2>\n\n\n\n<p>Grease traps are compact devices typically tucked away beneath sinks and dishwashers in commercial kitchens. These contraptions are designed to capture fats, oils, and grease before they wreak havoc in your plumbing. Here&#8217;s how grease traps work:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Inlet:<\/strong> The wastewater from sinks and dishwashers flows directly into the grease trap.<\/li>\n\n\n\n<li><strong>Separation:<\/strong> Within the trap, the wastewater undergoes a crucial transformation as it cools down, causing FOG to separate and float to the surface.<\/li>\n\n\n\n<li><strong>Collection:<\/strong> The separated grease accumulates at the top of the trap, while cleaner water exits through an outlet.<\/li>\n\n\n\n<li><strong>Maintenance:<\/strong> Grease traps require regular TLC in the form of grease removal to maintain efficiency and prevent pesky clogs.<\/li>\n<\/ol>\n\n\n\n<p>For a more in-depth look at grease traps and cleaning services, check out our <a href=\"https:\/\/www.zters.com\/blog\/grease-trap-cleaning-101\">grease trap cleaning 101 post<\/a>.<\/p>\n\n\n\n<div class=\"wp-block-group is-style-default has-background has-global-padding is-layout-constrained wp-container-core-group-is-layout-06918552 wp-block-group-is-layout-constrained\" style=\"background-color:#fa920017;padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--70);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--70)\">\n<h3 class=\"wp-block-heading has-text-align-center has-x-large-font-size\" id=\"h-need-grease-trap-cleaning\" style=\"padding-top:0;padding-bottom:var(--wp--preset--spacing--20)\"><strong>Need Grease Trap Cleaning?<\/strong><\/h3>\n\n\n\n<p class=\"has-text-align-center has-contrast-color has-text-color has-large-font-size\" style=\"margin-right:0;margin-left:0;padding-top:0;padding-right:0;padding-bottom:var(--wp--preset--spacing--20);padding-left:0\">Speak with an account manager for a free quote.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-a89b3969 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link has-base-background-color has-text-color has-background has-link-color has-text-align-center wp-element-button\" href=\"tel:8882512660\" style=\"border-radius:8px;color:#fa9200\">(888) 251-2660<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-is-a-grease-interceptor\">What is a grease interceptor?<\/h2>\n\n\n\n<p>Grease interceptors are built to manage heavier-duty FOG output. They\u2019re common for larger commercial kitchens and are typically found outside the building. Here&#8217;s how grease interceptors work:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Inlet:<\/strong> Wastewater from various kitchen sources enters the grease interceptor.<\/li>\n\n\n\n<li><strong>Settling:<\/strong> Inside the grease interceptor, the water slows down, allowing solids to settle at the bottom.<\/li>\n\n\n\n<li><strong>Separation:<\/strong> FOG, being lighter, rises to the top of the interceptor, creating a distinct layer.<\/li>\n\n\n\n<li><strong>Retention:<\/strong> The separated FOG and solids are retained within the interceptor, while the comparatively cleaner water is discharged into the sewer system.<\/li>\n\n\n\n<li><strong>Maintenance:<\/strong> Grease interceptors are equipped with larger storage capacities, which means they require less frequent maintenance than their smaller counterparts.<\/li>\n<\/ol>\n\n\n\n<p>The main draw of grease interceptors is their ability to efficiently handle substantial volumes of FOG. They\u2019re often <a href=\"https:\/\/codes.iccsafe.org\/content\/IPC2018P5\/chapter-10-traps-interceptors-and-separators\">mandated by local regulations<\/a> for larger-scale food establishments such as hotels, industrial kitchens, and cafeterias.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-key-differences\">Key Differences<\/h2>\n\n\n\n<p>Now that you\u2019re more familiar with how each of these units work, let\u2019s look at them side by side.<\/p>\n\n\n\n<p>The most notable difference between grease traps and grease interceptors is <strong><em>size and capacity<\/em><\/strong>. Grease traps are compact and well-suited for smaller kitchens whereas grease interceptors are bulkier and built to handle much larger FOG volumes.<\/p>\n\n\n\n<figure class=\"wp-block-image alignleft size-large is-resized\"><a href=\"https:\/\/www.linkedin.com\/company\/zters-site-services\/\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"http:\/\/www.zters.com\/blog\/wp-content\/uploads\/2025\/12\/ZTERS-blog-cta-LinkedIn-1024x1024.png\" alt=\"Follow ZTERS on LinkedIn for all things site services\" class=\"wp-image-9409\" style=\"width:287px;height:auto\" srcset=\"https:\/\/www.zters.com\/blog\/wp-content\/uploads\/2025\/12\/ZTERS-blog-cta-LinkedIn-1024x1024.png 1024w, https:\/\/www.zters.com\/blog\/wp-content\/uploads\/2025\/12\/ZTERS-blog-cta-LinkedIn-300x300.png 300w, https:\/\/www.zters.com\/blog\/wp-content\/uploads\/2025\/12\/ZTERS-blog-cta-LinkedIn-150x150.png 150w, https:\/\/www.zters.com\/blog\/wp-content\/uploads\/2025\/12\/ZTERS-blog-cta-LinkedIn-768x768.png 768w, https:\/\/www.zters.com\/blog\/wp-content\/uploads\/2025\/12\/ZTERS-blog-cta-LinkedIn.png 1400w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<p>A second difference is the <strong><em>location <\/em><\/strong>of these two units. Grease traps reside inside kitchens whereas grease interceptors are typically located outside\/next to the building.<\/p>\n\n\n\n<p><strong><em>Frequency of maintenance<\/em><\/strong><strong> <\/strong>is another key difference. <a href=\"https:\/\/www.zters.com\/grease-trap-cleaning\">Grease trap cleaning service<\/a> should happen on a regular basis to align with <a href=\"https:\/\/www.zters.com\/blog\/grease-trap-requirements-ensuring-environmental-compliance\">grease trap requirements<\/a>. Grease interceptors require less-frequent attention, but should still be evaluated every so often.<\/p>\n\n\n\n<p>Finally, there are <strong><em>different mandates<\/em><\/strong> related to grease traps vs. grease interceptors. Check with your local municipality to determine the specific requirements in your area. Avoid hefty fines and keep people safe.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-schedule-a-grease-trap-cleaning-service-with-zters\">Schedule a Grease Trap Cleaning Service with ZTERS<\/h2>\n\n\n\n<p>Choosing ZTERS for your grease trap cleaning service means choosing efficiency, compliance, and reliability. Our experienced team is here to help your commercial kitchen operate seamlessly while adhering to the highest environmental standards. Give us a call at 866-976-0262 to schedule your grease trap cleaning today!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-infographic-grease-trap-vs-grease-interceptor\">Infographic: Grease Trap vs. Grease Interceptor<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"http:\/\/www.zters.com\/blog\/wp-content\/uploads\/2024\/12\/ZTERS-Infographic-Grease-trap-vs-grease-interceptor-2.png\" alt=\"Grease trap vs grease interceptor. Grease traps are more compact with limited storage capacity, Typically tucked away beneath sinks and dishwashers in commercial kitchens, Require more regular maintenance\/cleaning\" class=\"wp-image-8275\" srcset=\"https:\/\/www.zters.com\/blog\/wp-content\/uploads\/2024\/12\/ZTERS-Infographic-Grease-trap-vs-grease-interceptor-2.png 1024w, https:\/\/www.zters.com\/blog\/wp-content\/uploads\/2024\/12\/ZTERS-Infographic-Grease-trap-vs-grease-interceptor-2-300x225.png 300w, https:\/\/www.zters.com\/blog\/wp-content\/uploads\/2024\/12\/ZTERS-Infographic-Grease-trap-vs-grease-interceptor-2-768x576.png 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Commercial kitchens are often fast-paced environments, leaving little time to worry about if fats, oil, and grease are being effectively managed. For this reason and many more, grease traps (and grease trap cleaning for that matter) are a critical part of any successful establishment. Grease traps have been around for well over a century and [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":7924,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[42],"tags":[55],"class_list":["post-7923","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-insightz","tag-grease-trap-cleaning"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.7 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Grease Trap vs. Grease Interceptor: What\u2019s the Difference? - The Site Savvy Blog<\/title>\n<meta name=\"description\" content=\"Commercial kitchens need to reliably manage fats, oil, and grease. 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