How to carry out cleaning and maintenance

Frankrao

316 Stainless Steel Heated Thermos Care Guide: Keep It Pristine for Years

A 316 stainless steel heated thermos is a winter essential, delivering cozy warmth with every sip. But improper cleaning and care can shorten its lifespan and compromise performance. Here’s how to keep yours looking and working like new.

1. Daily Cleaning Routine

① Empty Immediately After Use
Pour out leftover liquids—coffee, tea, or water—right after use to prevent bacterial growth and odors.

② Rinse the Inner Liner
Flush the interior with lukewarm water to remove residue. For stubborn stains, soak for 10–15 minutes before rinsing.

③ Clean Lids and Seals

  • Disassemble the lid and silicone seal.

  • Soak in warm water with mild dish soap for 5 minutes.

  • Scrub crevices with a soft-bristle toothbrush.

  • Rinse thoroughly to eliminate soap traces.

④ Wipe the Exterior
Use a damp microfiber cloth to remove fingerprints or stains. For tougher grime, add a drop of soap, wipe, then rinse with a clean cloth.

2. Deep Cleaning Solutions

① White Vinegar for Limescale

  • Mix 100–150ml white vinegar with warm water (fill halfway).

  • Shake vigorously, let sit for 1–2 hours, then scrub with a soft sponge.

  • Rinse until vinegar smell disappears.

② Baking Soda for Odors/Stains

  • Add 2–3 tbsp baking soda and warm water to cover stains.

  • Shake, soak for 30 minutes, then rinse thoroughly.

③ Stainless Steel Cleaners

  • Use non-abrasive, stainless-steel-specific cleaners as directed.

  • Avoid harsh chemicals—always rinse multiple times post-cleaning.

3. Care Tips to Extend Lifespan

① Avoid Corrosive Liquids
While 316 steel resists corrosion, prolonged exposure to citrus juices, soda, or salty soups can damage the liner. Rinse immediately after use.

② Prevent Scratches & Dents

  • Store separately from keys or sharp objects.

  • Scratches weaken the protective oxide layer, increasing rust risk.

③ Use Heating Features Safely

  • Always fill above the minimum water line to prevent dry heating.

  • Avoid touching the cup during heating.

  • Wait 1–2 minutes after heating before opening to avoid steam burns.

With consistent care, your 316 stainless steel thermos will stay spotless, odor-free, and functional for years—keeping you warm through countless winters.