Stainless Steel Thermos Bottle Stopper – Food-Grade Silicone Cap

Stainless Steel Thermos Bottle Stopper – Food-Grade Silicone Replacement Cap

Keep your drinks at the perfect temperature with this premium stainless steel thermos bottle stopper. Crafted from high-quality stainless steel combined with food-grade silicone, this replacement stopper provides an airtight, drip-proof seal for your thermos or vacuum flask. Available in S and L sizes to fit a wide range of bottles. Made in Mainland China.

Key Features

• Superior Insulation: Maintains beverage temperature for extended periods — ideal for hot drinks in winter or cold refreshments in summer.
• Multiple Opening Styles: Compatible with push-pull and rotation mechanisms for simple, convenient everyday use.
• Durable, High-Quality Materials: Constructed from rust-proof, corrosion-resistant stainless steel with reinforced compressive strength — built to last with no warping or deformation over time.
• Airtight Seal: Precision-engineered design ensures a leak-proof, drip-tight fit, preserving the freshness of your drinks and preventing spills.
• Easy to Clean: Simple, smooth design requires minimal effort — a quick wipe keeps it hygienic and residue-free.
• Food-Grade Safe: Made with food-grade materials and contains no high-concern chemicals, so it's safe for daily use.

Specifications

• Material: Stainless Steel + Food-Grade Silicone/Plastic
• Size Options: S / L (refer to product images for exact dimensions)
• Color: As shown in product images
• Use: Home, travel, outdoor
• Package Includes: 1 × Thermos Bottle Stopper
• Country of Origin: Made in Mainland China

Notes

• Product photos are for illustrative purposes; please refer to the written size description for accurate dimensions.
• Minor measurement differences may occur due to manual measuring — thank you for your understanding.
• Actual color may vary slightly from screen to screen due to monitor calibration differences.

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Learn more: FDA food safety in the kitchen

Frequently Asked Questions

Q: What sizes does the thermos bottle stopper come in?

A: The stopper is available in two sizes — Small (S) and Large (L). Please refer to the product images for the exact diameter measurements to ensure the correct fit for your thermos or vacuum flask.

Q: Is the thermos bottle stopper safe for food and beverages?

A: Yes. This stopper is made from food-grade silicone and stainless steel with no high-concern chemicals, making it safe for direct contact with hot or cold drinks for everyday use.

Q: How do I clean the thermos bottle stopper?

A: The stopper features a smooth, simple design that makes cleaning effortless. A quick wipe with a damp cloth or rinse under running water is all it takes to keep it clean and hygienic.

Q: Will this stopper fit my existing thermos bottle?

A: This stopper is designed as a universal replacement part compatible with many standard thermos and vacuum flask brands. Be sure to measure your bottle's opening diameter and compare it with the S or L size specifications before purchasing.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.