{"id":262186,"date":"2026-09-04T16:57:00","date_gmt":"2026-09-04T19:57:00","guid":{"rendered":"https:\/\/www.em.com.br\/emfoco\/?p=262186"},"modified":"2026-09-03T20:51:01","modified_gmt":"2026-09-03T23:51:01","slug":"o-botao-da-geladeira-nao-mostra-a-temperatura-real-um-termometro-simples-revela-se-os-alimentos-estao-bem-refrigerados","status":"publish","type":"post","link":"https:\/\/www.em.com.br\/emfoco\/2026\/09\/04\/o-botao-da-geladeira-nao-mostra-a-temperatura-real-um-termometro-simples-revela-se-os-alimentos-estao-bem-refrigerados\/","title":{"rendered":"O bot\u00e3o da geladeira n\u00e3o mostra a temperatura real: um term\u00f4metro simples revela se os alimentos est\u00e3o bem refrigerados"},"content":{"rendered":"\n<div class=\"emf-summary google-auto-ads-ignore\">\n  <style>\n    .emf-summary {\n      --emf-navy:#00245a;\n      --emf-navy-soft:#0b3b70;\n      --emf-ink:#1d2731;\n      --emf-muted:#66727e;\n      --emf-line:#d7dde5;\n      --emf-paper:#ffffff;\n      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   }\n\n      .emf-summary-logo {\n        inline-size:52px;\n        block-size:52px;\n        flex-basis:52px;\n      }\n\n      .emf-summary-logo img {\n        inline-size:41px;\n        block-size:41px;\n        max-inline-size:41px;\n        max-block-size:41px;\n      }\n\n      .emf-summary-title {\n        font-size:22px;\n      }\n\n      .emf-summary-card {\n        padding:21px 16px 18px;\n      }\n    }\n  <\/style>\n\n  <div class=\"emf-summary-brand\">\n    <div class=\"emf-summary-logo\">\n      <img\n        alt=\"Logo EM Foco\"\n        decoding=\"async\"\n        fetchpriority=\"high\"\n        height=\"46\"\n        loading=\"eager\"\n        referrerpolicy=\"no-referrer\"\n        src=\"https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2026\/08\/em_transparente_3000px-scaled.png\"\n        width=\"46\"\n      >\n    <\/div>\n\n    <div>\n      <div class=\"emf-summary-eyebrow\">EM FOCO<\/div>\n      <div class=\"emf-summary-title\">Resumo da mat\u00e9ria<\/div>\n    <\/div>\n  <\/div>\n\n  <div class=\"emf-summary-grid\">\n    <div class=\"emf-summary-card\">\n      <span aria-hidden=\"true\" class=\"emf-summary-number\">01<\/span>\n      <div aria-level=\"3\" class=\"emf-summary-card-title\" role=\"heading\">\n        Bot\u00e3o n\u00e3o \u00e9 term\u00f4metro\n      <\/div>\n      <div class=\"emf-summary-card-text\">\n        Em muitos modelos, o seletor representa n\u00edveis de funcionamento e n\u00e3o mostra a temperatura exata existente entre os alimentos.\n      <\/div>\n      <div class=\"emf-summary-card-meta\">\n        medi\u00e7\u00e3o real\n      <\/div>\n    <\/div>\n    <div class=\"emf-summary-card\">\n      <span aria-hidden=\"true\" class=\"emf-summary-number\">02<\/span>\n      <div aria-level=\"3\" class=\"emf-summary-card-title\" role=\"heading\">\n        Geladeira at\u00e9 4 \u00b0C\n      <\/div>\n      <div class=\"emf-summary-card-text\">\n        A FDA recomenda manter o refrigerador em 40 \u00b0F, cerca de 4 \u00b0C, ou menos para armazenamento adequado de alimentos.\n      <\/div>\n      <div class=\"emf-summary-card-meta\">\n        limite recomendado\n      <\/div>\n    <\/div>\n    <div class=\"emf-summary-card\">\n      <span aria-hidden=\"true\" class=\"emf-summary-number\">03<\/span>\n      <div aria-level=\"3\" class=\"emf-summary-card-title\" role=\"heading\">\n        Freezer perto de -18 \u00b0C\n      <\/div>\n      <div class=\"emf-summary-card-text\">\n        O freezer deve permanecer em 0 \u00b0F, cerca de -18 \u00b0C, e um term\u00f4metro pr\u00f3prio permite acompanhar essa condi\u00e7\u00e3o.\n      <\/div>\n      <div class=\"emf-summary-card-meta\">\n        controle peri\u00f3dico\n      <\/div>\n    <\/div>\n  <\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">O seletor da geladeira nem sempre informa quantos graus existem dentro do aparelho. Um <strong>term\u00f4metro de geladeira<\/strong> mostra a temperatura real e permite ajustar o controle com mais seguran\u00e7a. A refer\u00eancia da FDA \u00e9 de 4 \u00b0C ou menos no refrigerador e -18 \u00b0C no freezer, valores que precisam ser conferidos sempre.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Por que o n\u00famero do bot\u00e3o n\u00e3o revela a temperatura da geladeira?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Em muitos aparelhos, o controle indica apenas <strong>n\u00edveis de refrigera\u00e7\u00e3o<\/strong>. Um n\u00famero maior ou menor muda o funcionamento do sistema, mas n\u00e3o garante que aquele valor corresponda a graus Celsius. A temperatura real ainda varia com carga, abertura da porta, ambiente e posi\u00e7\u00e3o dentro do compartimento.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Um <a href=\"https:\/\/pt.wikipedia.org\/wiki\/Frigor%C3%ADfico\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>refrigerador dom\u00e9stico<\/strong><\/a> retira calor do interior, mas diferentes \u00e1reas podem ficar mais quentes ou frias. Por isso, a leitura de um term\u00f4metro colocado dentro do aparelho \u00e9 mais \u00fatil do que interpretar o seletor como se fosse uma escala direta de temperatura.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2026\/09\/codigos-1-1024x576.jpg\" alt=\"\" class=\"wp-image-262275\" srcset=\"https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2026\/09\/codigos-1-1024x576.jpg 1024w, https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2026\/09\/codigos-1-300x169.jpg 300w, https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2026\/09\/codigos-1-768x432.jpg 768w, https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2026\/09\/codigos-1-750x421.jpg 750w, https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2026\/09\/codigos-1-1140x641.jpg 1140w, https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2026\/09\/codigos-1.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">A temperatura interna pode variar conforme o modelo, a quantidade de alimentos e a frequ\u00eancia de abertura da porta<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Que temperatura o term\u00f4metro deve mostrar na geladeira e no freezer?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>FDA<\/strong> recomenda manter a geladeira em 40 \u00b0F, cerca de 4 \u00b0C, ou menos, e o freezer em 0 \u00b0F, cerca de -18 \u00b0C. Um term\u00f4metro pr\u00f3prio permite verificar se o aparelho realmente est\u00e1 nessa faixa e ajustar o controle quando necess\u00e1rio.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Publicado no peri\u00f3dico <strong>International Journal of Food Microbiology<\/strong>, o estudo <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/38277870\/\" target=\"_blank\" rel=\"noopener noreferrer\"><em>Temperature status of domestic refrigerators and its effect on the risk of listeriosis from ready-to-eat cooked meat products<\/em><\/a> encontrou m\u00e9dia de 5,7 \u00b0C entre 534 geladeiras medidas por consumidores.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Onde colocar o term\u00f4metro para acompanhar a temperatura?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A FDA orienta usar um <strong>term\u00f4metro de eletrodom\u00e9stico<\/strong> no refrigerador e outro no freezer quando poss\u00edvel. Para uma checagem pr\u00e1tica, deixe o mostrador em posi\u00e7\u00e3o f\u00e1cil de ler e evite encost\u00e1-lo diretamente em sa\u00eddas de ar, onde a leitura pode representar apenas um ponto muito frio.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Depois de mudar o seletor, d\u00ea tempo para o sistema estabilizar antes de decidir se precisa de novo ajuste. A leitura pode oscilar quando a porta abre ou durante ciclos do aparelho. O que interessa \u00e9 manter <strong>temperatura adequada de forma consistente<\/strong>, n\u00e3o perseguir cada pequena varia\u00e7\u00e3o moment\u00e2nea.<\/p>\n\n\n\n<p class=\"myth-list-bridge wp-block-paragraph\">A seguir listamos <strong>4 cuidados de medi\u00e7\u00e3o<\/strong> que ajudam a transformar o term\u00f4metro em uma refer\u00eancia \u00fatil para a geladeira:<\/p>\n\n\n\n<ul class=\"wp-block-list myth-bullet-list\">\n<li><strong>Use aparelho pr\u00f3prio: <\/strong>prefira term\u00f4metro destinado a geladeira ou freezer.<\/li>\n\n\n\n<li><strong>Leia periodicamente: <\/strong>acompanhe a temperatura em vez de confiar apenas no seletor.<\/li>\n\n\n\n<li><strong>Ajuste aos poucos: <\/strong>espere o aparelho estabilizar depois de mudar o controle.<\/li>\n\n\n\n<li><strong>Observe os dois compartimentos: <\/strong>geladeira e freezer t\u00eam faixas recomendadas diferentes.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Leia tamb\u00e9m: <a href=\"https:\/\/www.em.com.br\/emfoco\/2026\/09\/03\/forrar-o-fundo-do-forno-com-papel-aluminio-facilita-a-limpeza-mas-pode-danificar-o-aparelho-e-deixar-os-alimentos-assados-de-maneira-desigual\/\" target=\"_blank\" rel=\"noreferrer noopener\">Forrar o fundo do forno com papel-alum\u00ednio facilita a limpeza, mas pode danificar o aparelho e deixar os alimentos assados de maneira desigual<\/a><\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2026\/09\/freezer-1024x576.jpg\" alt=\"\" class=\"wp-image-262276\" srcset=\"https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2026\/09\/freezer-1024x576.jpg 1024w, https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2026\/09\/freezer-300x169.jpg 300w, https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2026\/09\/freezer-768x432.jpg 768w, https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2026\/09\/freezer-750x421.jpg 750w, https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2026\/09\/freezer-1140x641.jpg 1140w, https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2026\/09\/freezer.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Um term\u00f4metro pr\u00f3prio para geladeira permite verificar o resultado real da regulagem escolhida<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Por que alguns pontos da geladeira podem marcar temperaturas diferentes?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Prateleira, circula\u00e7\u00e3o de ar, quantidade de alimentos e abertura da porta alteram a distribui\u00e7\u00e3o do frio. O estudo citado encontrou <strong>diferen\u00e7as entre prateleiras<\/strong> em medi\u00e7\u00f5es detalhadas de geladeiras dom\u00e9sticas. Isso refor\u00e7a que uma \u00fanica posi\u00e7\u00e3o muito fria n\u00e3o garante condi\u00e7\u00e3o igual em todo o compartimento.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Evitar excesso de alimentos tamb\u00e9m ajuda o ar frio a circular. A <strong>FDA recomenda n\u00e3o sobrecarregar o refrigerador<\/strong>, porque o fluxo precisa passar entre os produtos. Se o term\u00f4metro mostra valor acima de 4 \u00b0C de forma persistente, ajuste o aparelho e verifique se portas, veda\u00e7\u00f5es e ventila\u00e7\u00e3o est\u00e3o normais.<\/p>\n\n\n\n<p class=\"myth-html-bridge wp-block-paragraph\">A seguir listamos <strong>3 fatores internos<\/strong> que explicam por que a mesma geladeira pode apresentar leituras diferentes conforme o ponto medido:<\/p>\n\n\n\n<div class=\"emf-data-table google-auto-ads-ignore\">\n  <style>\n    .emf-data-table {\n      --emf-navy:#00245a;\n      --emf-navy-soft:#0b3b70;\n      --emf-ink:#1d2731;\n      --emf-muted:#66727e;\n      --emf-line:#d7dde5;\n      --emf-wash:#f4f6f8;\n      box-sizing:border-box!important;\n      inline-size:min(1100px,100%)!important;\n      max-inline-size:100%!important;\n      margin-inline:auto!important;\n      overflow:hidden!important;\n      color:var(--emf-ink);\n      background:#fff;\n      border:1px solid var(--emf-line);\n      border-radius:6px!important;\n      box-shadow:0 8px 24px rgba(0,36,90,.08);\n      font-family:Arial,Helvetica,sans-serif;\n    }\n\n    .emf-data-table *,\n    .emf-data-table *::before,\n    .emf-data-table *::after {\n      box-sizing:border-box!important;\n    }\n\n    .emf-data-table-brand {\n      display:flex;\n      align-items:center;\n      gap:13px;\n      min-block-size:72px;\n      padding:10px 17px;\n      color:#fff;\n      background:linear-gradient(105deg,var(--emf-navy) 0%,var(--emf-navy-soft) 100%);\n      border-block-end:4px solid #c5ced8;\n    }\n\n    .emf-data-table-logo {\n      display:grid;\n      place-items:center;\n      inline-size:52px;\n      block-size:52px;\n      flex:0 0 52px;\n      background:rgba(255,255,255,.08);\n      border:1px solid rgba(255,255,255,.35);\n      border-radius:3px!important;\n    }\n\n    .emf-data-table-logo img {\n      display:block;\n      inline-size:41px;\n      block-size:41px;\n      max-inline-size:41px;\n      max-block-size:41px;\n      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inline-size:100%!important;\n      min-inline-size:680px!important;\n      max-inline-size:none!important;\n      margin:0!important;\n      border:0!important;\n      border-collapse:separate!important;\n      border-spacing:0!important;\n      table-layout:auto!important;\n      background:#fff!important;\n    }\n\n    .emf-data-table caption {\n      position:absolute!important;\n      inline-size:1px!important;\n      block-size:1px!important;\n      padding:0!important;\n      margin:-1px!important;\n      overflow:hidden!important;\n      clip:rect(0,0,0,0)!important;\n      white-space:nowrap!important;\n      border:0!important;\n    }\n\n    .emf-data-table thead {\n      display:table-header-group!important;\n    }\n\n    .emf-data-table tbody {\n      display:table-row-group!important;\n    }\n\n    .emf-data-table tr {\n      display:table-row!important;\n    }\n\n    .emf-data-table th,\n    .emf-data-table td {\n      display:table-cell!important;\n      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.emf-data-table tbody tr:nth-child(even) td,\n      .emf-data-table tbody tr:hover td {\n        display:grid!important;\n        grid-template-columns:minmax(105px,38%) minmax(0,1fr)!important;\n        align-items:start;\n        gap:11px;\n        padding:11px 12px!important;\n        background:#fff!important;\n        border-block-end:1px solid #e2e7ec!important;\n      }\n\n      .emf-data-table td::before {\n        content:attr(data-label);\n        color:var(--emf-muted);\n        font-size:10px;\n        font-weight:700;\n        letter-spacing:.06em;\n        line-height:1.35;\n        text-transform:uppercase;\n      }\n\n      .emf-data-table td:first-child {\n        color:var(--emf-navy)!important;\n        background:#edf1f5!important;\n      }\n\n      .emf-data-table td:last-child {\n        border-block-end:0!important;\n      }\n    }\n  <\/style>\n\n  <div class=\"emf-data-table-brand\">\n    <div class=\"emf-data-table-logo\">\n      <img\n        alt=\"Logo EM Foco\"\n        decoding=\"async\"\n        height=\"41\"\n        loading=\"lazy\"\n        referrerpolicy=\"no-referrer\"\n        src=\"https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2026\/08\/em_transparente_3000px-scaled.png\"\n        width=\"41\"\n      >\n    <\/div>\n\n    <div>\n      <div class=\"emf-data-table-kicker\">DADOS EM FOCO<\/div>\n      <div class=\"emf-data-table-title\">Temperaturas para acompanhar<\/div>\n    <\/div>\n  <\/div>\n\n  <div aria-label=\"Tabela com compartimento, refer\u00eancia e a\u00e7\u00e3o usando term\u00f4metro de geladeira\" class=\"emf-data-table-scroll\" role=\"region\" tabindex=\"0\">\n    <table>\n      <caption>Resumo das temperaturas indicadas pela FDA para geladeira e freezer<\/caption>\n      <thead>\n        <tr>\n          <th scope=\"col\">Compartimento<\/th>\n          <th scope=\"col\">Refer\u00eancia<\/th>\n          <th scope=\"col\">O que fazer<\/th>\n        <\/tr>\n      <\/thead>\n      <tbody>\n        <tr>\n          <td data-label=\"Compartimento\">Geladeira<\/td>\n          <td data-label=\"Refer\u00eancia\">4 \u00b0C ou menos<\/td>\n          <td data-label=\"O que fazer\">Ajustar se permanecer acima<\/td>\n        <\/tr>\n        <tr>\n          <td data-label=\"Compartimento\">Freezer<\/td>\n          <td data-label=\"Refer\u00eancia\">-18 \u00b0C ou menos<\/td>\n          <td data-label=\"O que fazer\">Conferir periodicamente<\/td>\n        <\/tr>\n        <tr>\n          <td data-label=\"Compartimento\">Ap\u00f3s ajuste<\/td>\n          <td data-label=\"Refer\u00eancia\">Esperar estabilizar<\/td>\n          <td data-label=\"O que fazer\">Medir novamente<\/td>\n        <\/tr>\n      <\/tbody>\n    <\/table>\n  <\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Com que frequ\u00eancia vale conferir o term\u00f4metro da geladeira?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A temperatura deve ser observada <strong>periodicamente<\/strong>, especialmente depois de ajustes, mudan\u00e7as na carga ou per\u00edodos de calor intenso. A FDA tamb\u00e9m recomenda acompanhar term\u00f4metros de geladeira e freezer regularmente, porque o seletor sozinho n\u00e3o confirma que o alimento est\u00e1 armazenado na faixa esperada.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O h\u00e1bito mais \u00fatil \u00e9 simples: <strong>me\u00e7a, ajuste e confira de novo<\/strong>. Manter a geladeira em cerca de 4 \u00b0C ou menos e o freezer perto de -18 \u00b0C transforma um bot\u00e3o aproximado em controle real. O term\u00f4metro custa pouco e mostra justamente a informa\u00e7\u00e3o que muitos seletores n\u00e3o entregam.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>EM FOCO Resumo da mat\u00e9ria 01 Bot\u00e3o n\u00e3o \u00e9 term\u00f4metro Em muitos modelos, o seletor representa n\u00edveis de funcionamento e n\u00e3o mostra a temperatura exata existente entre os alimentos. medi\u00e7\u00e3o real 02 Geladeira at\u00e9 4 \u00b0C A FDA recomenda manter o refrigerador em 40 \u00b0F, cerca de 4 \u00b0C, ou menos para armazenamento adequado de [&hellip;]<\/p>\n","protected":false},"author":30,"featured_media":262274,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jnews-multi-image_gallery":[],"jnews_single_post":{"format":"standard"},"jnews_primary_category":[],"jnews_social_meta":[],"jnews_override_counter":[],"footnotes":""},"categories":[8691],"tags":[3081,7291,7572,14985],"class_list":["post-262186","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bem-estar","tag-alimentos","tag-geladeira","tag-refrigeracao","tag-termometro"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>O bot\u00e3o da geladeira n\u00e3o mostra a temperatura real: um term\u00f4metro simples revela se os alimentos est\u00e3o bem refrigerados - Estado de Minas - Em foco<\/title>\n<meta name=\"description\" content=\"O n\u00famero do bot\u00e3o n\u00e3o diz quantos graus h\u00e1 dentro da geladeira. 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