{"product_id":"the-high-pass-vacuum-thermos","title":"The High Pass | 304 Stainless Vacuum Thermos with Tea Filter","description":"\u003cdiv class=\"product-narrative\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; color: #2d2d2d;\"\u003eThere is a specific moment on a cold morning when a vacuum flask stops being a convenience and becomes the reason the day works. The car is iced over, the trailhead is forty minutes away, and the only hot water for a hundred kilometres is the litre you brought with you.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; color: #2d2d2d;\"\u003eThis flask is built for that morning. Double-wall vacuum construction in 304 food-grade stainless steel holds temperature for six to twelve hours depending on fill and ambient conditions, and the screw lid seals hard enough to survive being thrown into a rucksack sideways. The interior is polished steel rather than a coated liner, so it does not hold the taste of yesterday's coffee into today's tea.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; color: #2d2d2d;\"\u003eThe detail that buyers notice second is the filter. A removable stainless mesh sits below the rim, so loose leaf tea, sliced ginger or citrus peel stays in the flask instead of in your teeth. It is a small addition that turns a water bottle into something you can actually brew in, which is why the 600, 800 and 1000 millilitre sizes all carry it.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; color: #555;\"\u003e\u003cem\u003eHeat is not the luxury. Heat where you need it is.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-features\" style=\"margin-top: 30px;\"\u003e\n\u003ch3 style=\"font-size: 20px; color: #1a1a1a;\"\u003eWhy It Earns Its Place\u003c\/h3\u003e\n\u003cul style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n\u003cli style=\"padding: 10px 0; border-bottom: 1px solid #eee; font-size: 15px; line-height: 1.6; color: #2d2d2d;\"\u003e✦ Double-wall vacuum insulation holds temperature six to twelve hours\u003c\/li\u003e\n\u003cli style=\"padding: 10px 0; border-bottom: 1px solid #eee; font-size: 15px; line-height: 1.6; color: #2d2d2d;\"\u003e✦ 304 food-grade stainless steel interior and exterior\u003c\/li\u003e\n\u003cli style=\"padding: 10px 0; border-bottom: 1px solid #eee; font-size: 15px; line-height: 1.6; color: #2d2d2d;\"\u003e✦ Removable stainless mesh filter for loose tea, ginger and citrus\u003c\/li\u003e\n\u003cli style=\"padding: 10px 0; border-bottom: 1px solid #eee; font-size: 15px; line-height: 1.6; color: #2d2d2d;\"\u003e✦ Leak-proof screw lid rated for horizontal carriage in a pack\u003c\/li\u003e\n\u003cli style=\"padding: 10px 0; border-bottom: 1px solid #eee; font-size: 15px; line-height: 1.6; color: #2d2d2d;\"\u003e✦ Three capacities: 600 ml, 800 ml and 1000 ml\u003c\/li\u003e\n\u003cli style=\"padding: 10px 0; border-bottom: 1px solid #eee; font-size: 15px; line-height: 1.6; color: #2d2d2d;\"\u003e✦ Four colourways with a straight-body profile that fits cup holders\u003c\/li\u003e\n\u003cli style=\"padding: 10px 0; border-bottom: 1px solid #eee; font-size: 15px; line-height: 1.6; color: #2d2d2d;\"\u003e✦ Wide mouth accepts ice cubes and a bottle brush\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003chr style=\"margin: 26px 0; border: 0; border-top: 1px solid #eee;\"\u003e\u003cdiv class=\"product-specs\"\u003e\n\u003ch3 style=\"font-size: 20px; color: #1a1a1a;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n\u003cli style=\"padding: 10px 0; border-bottom: 1px solid #eee; font-size: 15px; line-height: 1.6; color: #2d2d2d;\"\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e  304 stainless steel, food-grade silicone, PP\u003c\/li\u003e\n\u003cli style=\"padding: 10px 0; border-bottom: 1px solid #eee; font-size: 15px; line-height: 1.6; color: #2d2d2d;\"\u003e\n\u003cstrong\u003eCapacity\u003c\/strong\u003e  600 ml \/ 800 ml \/ 1000 ml\u003c\/li\u003e\n\u003cli style=\"padding: 10px 0; border-bottom: 1px solid #eee; font-size: 15px; line-height: 1.6; color: #2d2d2d;\"\u003e\n\u003cstrong\u003eBottle Type\u003c\/strong\u003e  Double-wall vacuum flask\u003c\/li\u003e\n\u003cli style=\"padding: 10px 0; border-bottom: 1px solid #eee; font-size: 15px; line-height: 1.6; color: #2d2d2d;\"\u003e\n\u003cstrong\u003eInsulation\u003c\/strong\u003e  6 to 12 hours\u003c\/li\u003e\n\u003cli style=\"padding: 10px 0; border-bottom: 1px solid #eee; font-size: 15px; line-height: 1.6; color: #2d2d2d;\"\u003e\n\u003cstrong\u003eLid\u003c\/strong\u003e  Leak-proof screw cap\u003c\/li\u003e\n\u003cli style=\"padding: 10px 0; border-bottom: 1px solid #eee; font-size: 15px; line-height: 1.6; color: #2d2d2d;\"\u003e\n\u003cstrong\u003eFilter\u003c\/strong\u003e  Removable stainless mesh\u003c\/li\u003e\n\u003cli style=\"padding: 10px 0; border-bottom: 1px solid #eee; font-size: 15px; line-height: 1.6; color: #2d2d2d;\"\u003e\n\u003cstrong\u003eShape\u003c\/strong\u003e  Straight body\u003c\/li\u003e\n\u003cli style=\"padding: 10px 0; border-bottom: 1px solid #eee; font-size: 15px; line-height: 1.6; color: #2d2d2d;\"\u003e\n\u003cstrong\u003eColours\u003c\/strong\u003e  Silver, Black, Blue, Red\u003c\/li\u003e\n\u003cli style=\"padding: 10px 0; border-bottom: 1px solid #eee; font-size: 15px; line-height: 1.6; color: #2d2d2d;\"\u003e\n\u003cstrong\u003eMouth\u003c\/strong\u003e  Wide, ice-cube compatible\u003c\/li\u003e\n\u003cli style=\"padding: 10px 0; border-bottom: 1px solid #eee; font-size: 15px; line-height: 1.6; color: #2d2d2d;\"\u003e\n\u003cstrong\u003eCare\u003c\/strong\u003e  Hand wash recommended\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-applications\" style=\"margin-top: 30px;\"\u003e\n\u003ch3 style=\"font-size: 20px; color: #1a1a1a;\"\u003eWhere It Belongs\u003c\/h3\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; color: #2d2d2d;\"\u003eBuilt for commuters, hikers, night-shift workers and anyone who refuses to pay four dollars for hot water at a service station. The 600 ml size fits a bicycle bottle cage and a car cup holder; the 1000 ml size covers a full day on site or a two-person hike. Buyers who brew loose leaf tea tend to take the 800 ml, because the filter makes it a genuine travel teapot rather than a flask that happens to be hot. It is equally at home on a factory floor, in a delivery van, or on a desk next to a laptop.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-faq\" style=\"margin-top: 30px;\"\u003e\n\u003ch3 style=\"font-size: 20px; color: #1a1a1a;\"\u003eQuestions Buyers Ask\u003c\/h3\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.7; color: #1a1a1a; margin-bottom: 4px;\"\u003e\u003cstrong\u003eQ: How long does it actually keep drinks hot?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.7; color: #444;\"\u003eA: Six hours at near-boiling fill in cold weather, closer to twelve in mild conditions. Pre-heating the flask with boiling water for two minutes before filling adds roughly two hours.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.7; color: #1a1a1a; margin-bottom: 4px;\"\u003e\u003cstrong\u003eQ: Does the filter fit all three sizes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.7; color: #444;\"\u003eA: Yes. The mesh filter is the same diameter across the 600, 800 and 1000 ml bodies and seats below the rim.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.7; color: #1a1a1a; margin-bottom: 4px;\"\u003e\u003cstrong\u003eQ: Can I put carbonated drinks in it?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.7; color: #444;\"\u003eA: We do not recommend it. Pressure builds against a sealed screw lid and can force liquid out when opened.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.7; color: #1a1a1a; margin-bottom: 4px;\"\u003e\u003cstrong\u003eQ: Is it dishwasher safe?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.7; color: #444;\"\u003eA: The body survives a dishwasher but the coating and the seal last longer with hand washing. Wash the filter separately so tea leaf does not lodge in the mesh.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.7; color: #1a1a1a; margin-bottom: 4px;\"\u003e\u003cstrong\u003eQ: Will it leak in a bag?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.7; color: #444;\"\u003eA: The screw lid is rated leak-proof and holds under horizontal carriage. Check that the silicone gasket is seated after each wash.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.7; color: #1a1a1a; margin-bottom: 4px;\"\u003e\u003cstrong\u003eQ: Does coffee flavour carry over?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.7; color: #444;\"\u003eA: Less than with a coated liner, because the interior is polished 304 steel. A rinse with hot water and a pinch of bicarbonate clears residual oils.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.7; color: #1a1a1a; margin-bottom: 4px;\"\u003e\u003cstrong\u003eQ: What is the difference between the sizes beyond volume?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.7; color: #444;\"\u003eA: Only capacity and weight. The lid, filter and body diameter are shared, so a 600 ml and a 1000 ml flask are interchangeable in use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.7; color: #1a1a1a; margin-bottom: 4px;\"\u003e\u003cstrong\u003eQ: Does the outside get hot with a hot drink?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.7; color: #444;\"\u003eA: No. The vacuum gap isolates the outer wall, so a flask filled with boiling water is comfortable to hold. That is also why condensation does not form on the outside in cold weather.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.7; color: #1a1a1a; margin-bottom: 4px;\"\u003e\u003cstrong\u003eQ: Is the plastic in the lid safe for hot liquid?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.7; color: #444;\"\u003eA: The lid and filter housing use food-grade PP and silicone rated for beverage temperatures. Nothing in the liquid path is unlined aluminium.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-gallery\" style=\"margin-top: 30px; text-align: center;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sc4b346bf60f64e0695678f0b94fdc3930.webp?v=1753744403\" alt=\"The High Pass | 304 Stainless Vacuum Thermos with Tea Filter\" style=\"max-width: 100%; height: auto; margin: 8px 0; border-radius: 4px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sfc778f1c0abf44cd82412d48d6d1cfdbv.webp?v=1753744403\" alt=\"The High Pass | 304 Stainless Vacuum Thermos with Tea Filter\" style=\"max-width: 100%; height: auto; margin: 8px 0; border-radius: 4px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Se866c6895748458cb7fd66a055e4b905n.webp?v=1753744403\" alt=\"The High Pass | 304 Stainless Vacuum Thermos with Tea Filter\" style=\"max-width: 100%; height: auto; margin: 8px 0; border-radius: 4px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sd1284a8bd10c420aa64785418707e4daq.webp?v=1753744403\" alt=\"The High Pass | 304 Stainless Vacuum Thermos with Tea Filter\" style=\"max-width: 100%; height: auto; margin: 8px 0; border-radius: 4px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sb03f7c59939c4211a0dba8c7df7e756ai.webp?v=1753744403\" alt=\"The High Pass | 304 Stainless Vacuum Thermos with Tea Filter\" style=\"max-width: 100%; height: auto; margin: 8px 0; border-radius: 4px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S1a3de6f781fc4ba590c5d38e2c898918B.webp?v=1753744403\" alt=\"The High Pass | 304 Stainless Vacuum Thermos with Tea Filter\" style=\"max-width: 100%; height: auto; margin: 8px 0; border-radius: 4px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/See605f6aa5fa4a17948f00e2e7e40bb80.webp?v=1753744403\" alt=\"The High Pass | 304 Stainless Vacuum Thermos with Tea Filter\" style=\"max-width: 100%; height: auto; margin: 8px 0; border-radius: 4px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Saa7b547571f34a37a99cece9215132e1n.webp?v=1753744403\" alt=\"The High Pass | 304 Stainless Vacuum Thermos with Tea Filter\" style=\"max-width: 100%; height: auto; margin: 8px 0; border-radius: 4px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S0a61e63a690d4740beee585f59cd5033p.webp?v=1753744403\" alt=\"The High Pass | 304 Stainless Vacuum Thermos with Tea Filter\" style=\"max-width: 100%; height: auto; margin: 8px 0; border-radius: 4px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S2e02d7d64bcb4022913ccde710289021w.webp?v=1753744403\" alt=\"The High Pass | 304 Stainless Vacuum Thermos with Tea Filter\" style=\"max-width: 100%; height: auto; margin: 8px 0; border-radius: 4px;\"\u003e\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"Product\", \"name\": \"The High Pass | 304 Stainless Vacuum Thermos with Tea Filter\", \"description\": \"There is a specific moment on a cold morning when a vacuum flask stops being a convenience and becomes the reason the day works. 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