[Crawl-Date: 2026-05-09] [Source: DataJelly Visibility Layer] [URL: https://whymugs.com/materials] --- title: Mug Materials — Porcelain, Stoneware, Enamel, Glass & Steel description: Five mug materials, ranked: heat retention, weight, durability, and feel. Which one keeps coffee hottest, longest? url: https://whymugs.com/materials canonical: https://whymugs.com/materials og_title: Mug Materials — Porcelain, Stoneware, Enamel, Glass & Steel og_description: Five mug materials, ranked: heat retention, weight, durability, and feel. Which one keeps coffee hottest, longest? og_image: https://whymugs.com/assets/hero-mug-BKohAhQ3.jpg twitter_card: summary_large_image twitter_image: https://whymugs.com/assets/hero-mug-BKohAhQ3.jpg --- # Mug Materials — Porcelain, Stoneware, Enamel, Glass & Steel > Five mug materials, ranked: heat retention, weight, durability, and feel. Which one keeps coffee hottest, longest? --- № 01 · 1,300–1,400°C ## Porcelain The thoroughbred. Kaolin clay fired at 1,300–1,400°C until it vitrifies into a glassy, non-porous body. Translucent if held to light. Rings like a bell when tapped. Invented in Tang-dynasty China; Europe spent a thousand years trying to copy it. Feel Cool to the touch even when full. Thin walls feel almost weightless against the lip. The drink leads, the vessel disappears. Heat retention62 Weight / heft30 Durability55 Elegance95 Best for Espresso, cappuccino, tea ceremony, anything where the drink is the star. Watch out Thin rims chip if you stack them carelessly. Thermal-shock dislikes pouring boiling water into a cold cup. ## Structured Data (JSON-LD) ```json {"@context":"https://schema.org","@graph":[{"@type":"WebSite","@id":"https://whymugs.com/#website","name":"Why Mugs","url":"https://whymugs.com","description":"A field journal of coffee mugs \u2014 anatomy, materials, history, etymology, and 47\u002B archetypes.","inLanguage":"en","publisher":{"@id":"https://whymugs.com/#org"},"potentialAction":{"@type":"SearchAction","target":"https://whymugs.com/guide?q={search_term_string}","query-input":"required name=search_term_string"}},{"@type":"Organization","@id":"https://whymugs.com/#org","name":"Why Mugs","url":"https://whymugs.com","logo":"https://whymugs.com/favicon.png"}]} ``` ```json {"@context":"https://schema.org","@type":"Article","headline":"Mug Materials \u2014 Porcelain, Stoneware, Enamel, Glass \u0026 Steel","description":"Five mug materials, ranked: heat retention, weight, durability, and feel. Which one keeps coffee hottest, longest?","image":["https://whymugs.com/assets/hero-mug-BKohAhQ3.jpg"],"mainEntityOfPage":{"@type":"WebPage","@id":"https://whymugs.com/materials"},"author":{"@type":"Organization","name":"Why Mugs","url":"https://whymugs.com"},"publisher":{"@type":"Organization","name":"Why Mugs","url":"https://whymugs.com"},"datePublished":"2025-01-01","dateModified":"2026-05-01","inLanguage":"en"} ``` ```json {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://whymugs.com"},{"@type":"ListItem","position":2,"name":"Materials","item":"https://whymugs.com/materials"}]} ```