Stainless Steel Vacuum Flask Set with 2 Cups,Double Wall Insulated Thermos Bottle for Hot&Cold Drinks,Travel&Gift Set

Usage Instructions

1. Pre-Use Preparation

   • Unpack the flask and cups, then wash all parts thoroughly with warm, soapy water. Rinse and dry completely before first use.

   • For best insulation performance, pre-heat or pre-chill the flask: fill it with hot or cold water for 5–10 minutes, then empty before adding your beverage.

2. Filling the Flask

   • Unscrew the lid (which also serves as a drinking cup).

   • Pour your hot or cold beverage into the flask. Do not overfill; leave a small gap at the top to prevent spills when closing the lid.

   • Screw the lid on tightly to create a proper seal.

3. Using the Cups

   • The main lid and the two included cups are designed for pouring and drinking.

   • Pour the beverage into the cups slowly. The cups are insulated and can hold both hot and cold drinks safely.

4. After Use

   • Empty any remaining liquid from the flask and cups.

   • Wash all parts promptly to prevent stains or odors.

⚠️ Important Safety Notes

• Heat Safety

  • The flask keeps liquids very hot. Always use caution when pouring and drinking to avoid burns.

  • Do not use the flask for carbonated drinks (soda, sparkling water), as pressure buildup can cause the lid to open unexpectedly or leak.

  • Do not use for dry ice or other extremely cold substances, as this can damage the vacuum seal.

• Beverage Restrictions

  • This flask is designed for water, tea, coffee, and similar beverages. Do not use it for:

    • Dairy products (milk, yogurt) – they can spoil quickly and cause odors.

    • Alcoholic beverages – these can expand and affect the vacuum seal.

    • Thick soups or stews – they are difficult to clean and may clog the lid.

• General Care

  • Do not drop, hit, or apply heavy impact to the flask, as this can damage the vacuum insulation.

  • Do not place the flask in the microwave, oven, or freezer.

  • Keep out of reach of young children, especially when containing hot liquids.

️ Cleaning & Maintenance

1. Daily Cleaning

   • Wash the flask, lid, and cups with warm water and mild dish soap after each use.

   • Use a soft sponge or brush to clean the inside; avoid using metal scouring pads, which can scratch the stainless steel.

   • Rinse all parts thoroughly and dry them completely before reassembling or storing.

2. Removing Stains & Odors

   • For stubborn odors or stains, fill the flask with a mixture of warm water and baking soda (or white vinegar). Let it sit for a few hours, then scrub gently and rinse thoroughly.

3. Storage

   • Store the flask with the lid removed to allow air circulation and prevent musty odors.

   • Keep in a cool, dry place, away from direct sunlight.