Stainless Steel Kids Thermos – 12 oz

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The WeeSprout Kids Thermos is the upgrade every school lunchbox needs. Made from ultra-durable 18/8 stainless steel, this vacuum-insulated thermos is designed to keep hot foods warm and cold foods cool for hours — no microwaves or cafeteria lines required.

The airtight twist lid seals inside the thermos to lock in temperature and prevent leaks. Plus, a copper-coated inner wall helps reflect heat (or cold) back toward your child’s food for optimal insulation. The wide-mouth opening makes it easy for kids to eat directly from the thermos, and the kid-friendly top handle gives them independence at lunchtime.

Whether it’s soup, pasta, yogurt, or leftovers from last night’s dinner, this thermos keeps food fresh and ready to enjoy — no soggy lunchboxes or wasted meals!

Capacity: 12 oz
Material: 18/8 stainless steel body, BPA-free plastic lid
Dimensions: Approx. 6.5" tall × 3.25" wide
Recommended Age: 3 years +
  • 18/8 Stainless Steel — Kid-proof & ultra-durable
  • 12 oz Capacity — The perfect size for school lunches
  • 100% Leakproof + Airtight — Locks in liquids & keeps food fresh
  • Double-Walled & Vacuum Sealed — For maximum insulation
  • Copper-Coated Inner Wall — Directs heat or cold toward food
  • Thermal Insulating Twist Lid — BPA-free insulating plastic twist lid
  • Kid-Friendly Top Handle — Easy for littles to open, close & carry
  • Sweatproof — Outer finish stays dry to the touch
  • Wide Mouth Design — Easy to clean & eat from
  • Top Rack Dishwasher Safe Lid — For quick & easy cleanup
  • WeeCare Guarantee – Not satisfied? We’ll make it right — every time.
  • Use under adult supervision
  • Always inspect for wear or damage before each use — discontinue use if any part is worn or compromised
  • Handwash thermos before first use
  • Ensure lid is fully screwed on before drinking from the thermos
  • Use caution when opening if used with hot or carbonated liquids — pressure can build up inside
  • Do not put thermos in dishwasher, microwave, or freezer
  • Do not overfill — lid may push liquid out of thermos

For Maximum Insulation:

Fill thermos with hot or cold water and let stand for 5–10 minutes. Empty water and fill with food. Use hot water for hot meals and cold water for chilled items.

Deep Cleaning Instructions:

  1. Handwash thermos and set in sink
  2. Fill with 1 part water, 1 part vinegar, and 1 tbsp baking soda
  3. Soak overnight
  4. Pour out ¾ of the mixture
  5. Add 1 more tbsp baking soda and scrub interior and lid with bottle brush  

For product support, contact weecare@weesprout.com

Toddler in kitchen holds a purple thermos

Making Messes, Making Memories

We create products that handle real-life mealtime moments while helping minimize the mess. Thoughtfully designed for growing independence, each piece makes room for the memories that matter.

Our Promise

We design every WeeSprout product with families in mind — thoughtfully crafted, carefully tested, and made to make everyday moments easier and more meaningful. Here's what matters most to us:

  • Purpose: Thoughtful designs that make life easier and support your child’s growth at every stage.
  • Trust: Safe, durable materials you can rely on, backed by caring customer service and our WeeCare Guarantee.
  • Wonder: Products that help families slow down, savor the moment, and celebrate the everyday magic of raising little ones.
Child twists the lid on a blue thermos before putting it in her pink lunch box