English
Home > Products > 1L Stainless Vacuum Flask

1L Stainless Vacuum Flask

Keep your beverages at the perfect temperature for hours, whether you're on a long journey or just heading to the office. Our 1L Stainless Vacuum Flask is engineered for superior thermal retention, keeping hot drinks hot and cold drinks cold. This makes it an ideal choice for a variety of activities. For smaller, more portable needs, consider our 500ml Stainless Vacuum Flask. If your adventures take you off the beaten path, our rugged Outdoor Stainless Vacuum Flask is built to withstand the elements. For the daily commuter, our convenient Car Stainless Vacuum Flask fits perfectly in most cup holders. And for complete peace of mind against spills, our Leakproof Stainless Vacuum Flask ensures your bag stays dry.


The 1L Stainless Vacuum Flask is crafted with precision and user experience in mind. Constructed from high-grade, food-safe 304 stainless steel, it is entirely BPA-free, ensuring your drinks taste pure and uncontaminated. The advanced double-wall vacuum insulation technology is the core of its performance, creating a powerful barrier against temperature transfer. This flask isn't just about keeping your coffee hot; its superior insulation is equally effective at preserving the chill of your iced water or sports drinks throughout the day. The exterior features a durable, scratch-resistant finish that maintains its sleek look even after years of use. A wide mouth opening allows for easy filling, cleaning, and even adding ice cubes. The ergonomic, leak-proof cap clicks securely into place, providing a reliable seal that you can count on. Designed with a comfortable, non-slip grip, the 1L Stainless Vacuum Flask is as practical and user-friendly as it is high-performing, ready to become your go-to companion for hydration.

  • Capacity: 1 Liter (1000ml)
  • Material: 304 Food-Grade Stainless Steel (Inner & Outer Wall)
  • Insulation: Double-Wall Vacuum Insulation
  • Hot Retention: Up to 12 hours
  • Cold Retention: Up to 24 hours
  • Lid Type: Leak-Proof Screw Cap with Handle
  • Opening Diameter: 58mm (Wide Mouth)
  • Exterior Finish: Durable, Scratch-Resistant Paint
  • Height: 25cm
  • Diameter: 8.5cm
  • Weight: 450g
Feature Specification
Primary Material 304 Stainless Steel
Insulation Technology Double-Wall Vacuum
Temperature Retention (Hot) ≥95°C for 6 hours; ≥60°C for 12 hours
Temperature Retention (Cold) ≤10°C for 24 hours (with ice)
Lid Seal Silicone Gasket
Dishwasher Safe Body: Yes (Top Rack Recommended); Lid: Hand Wash Only
Warranty 5 Years

Related Products

Hot Products

  • Road Trip Tumbler

    Road Trip Tumbler

    Yongkang jiangzhi cup industry Co., Ltd. is a factory of stainless steel water bottle. Road trip tumbler is a main products in our factory, and it is a fashion and hot sale 1200 ml tumbler. We keep the quality in every process, to maker sure each one tumbler is good quality. We are looking forward to hear you to cooperation for mutual benefits in the days to come.
  • Insulated Beer Mug

    Insulated Beer Mug

    The insulated beer mug is belong to Kudike, who is the brand of stainless steel bottle factory.
    Our main aim is to be the lead of stainless steel water bottle, production all products with high quality.
    We are looking for the partner who is in this water bottle industry for long time cooperation.
  • Temperature Display Pot

    Temperature Display Pot

    With Kudike's intelligent temperature control lid and slow brewing process, this high-quality temperature display pot helps you brew accurately and enjoy a richer and healthier tea drinking experience. We also provide customized packaging services. When you encounter different occasions that require different packaging appearances, you can come to us for customization!
  • Thermos Cup

    Thermos Cup

    The Kudike high-quality thermos cup comes with a pop-up straw, so feel free to choose this product when your child needs some help to close the bottle cap and prevent the beverage from spilling. The stainless steel bottle body is convenient for small hands to open and hold, allowing children to use it independently. Reusable straws are easy to disassemble and replace (replacement straws need to be purchased separately).
  • Double Wall Drink Bottle

    Double Wall Drink Bottle

    Yongkang Jiangzhi cup industry co., Ltd. is a factory, who is production the double wall drink bottle. Our brand is Kudike. We keep our heat to high quality bottle, every process details.
  • Fountain Tumbler

    Fountain Tumbler

    We are the source factory, located in Yongkang City, Zhejiang Province, and it is the world's largest production base of stainless steel insulated cups.
    Fountain tumbler is the hotest sale stainles steel tumbler in the market.
    We are looking for long time cooperation partner for mutual benefits.
  • Related Blog
  • Reviews

  • The 2025 FINA Championships in Singapore with us

    The Singapore Swimming World Championships concluded on the evening of the 3rd, and the water ripples gradually subsided. During the eight-day "pool battle", three world records were broken, and swimmers from various countries wrote pool legends of this summer both on and off the field.

  • How did Kudike deliver 10,000 custom Boost Juice cups in only 20 days with strict Pantone color matching?

    Kudike fulfilled 10,000 customized insulated cups for Boost Juice in 20 days, using high-end 3D printing, precise Pantone color matching, and efficient production scheduling to meet high-quality requirements.

  • How to choose the material of a travel tumbler?

    When choosing the material of a travel tumbler, you should consider its heat preservation and cold preservation effect, durability, easy cleaning, and whether it is suitable for beverages such as coffee or tea. Here are some recommended materials.

  • Why Do Cyclists Need a Reliable Bike Water Bottle?

    ​Cycling is not just a sport but also a lifestyle, and every rider knows how important hydration is during long rides. Whether it's a casual weekend trip or a professional race, having a Bike Water Bottle is essential. Without it, riders risk fatigue, decreased performance, and even health issues caused by dehydration. Over the years, I have realized that carrying the right water bottle is not just about convenience, but also about safety and endurance.

  • Why Choose a Double Wall Gym Vacuum Cup for Fitness, Travel, and Everyday Hydration?

    Staying hydrated during workouts, outdoor adventures, and daily routines has become an essential part of modern healthy living. A Double Wall Gym Vacuum Cup is designed to keep beverages at the perfect temperature while offering durability, convenience, and portability for active lifestyles. Whether you are heading to the gym, commuting to work, or enjoying outdoor activities, the right insulated cup can dramatically improve your hydration experience.

  • Why Choose a Vacuum Insulated Bottle?

    Vacuum insulated bottles have become essential for daily hydration, outdoor adventures, and office use. With advanced insulation technology, vacuum insulated bottles maintain beverage temperature for hours, ensuring your drinks stay hot or cold exactly as you like. Yongkang Jiangzhi Cup Industry Co., Ltd. provides a wide range of high-quality vacuum insulated bottles suitable for every lifestyle.

Send Inquiry

Hit enter to search or ESC to close
X
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Privacy Policy
Reject Accept