ThermoFlask Insulated Food Jar 12 oz — Candy Oasis stainless steel, leakproof, Temp-Lock insulation

ThermoFlask's 12 oz insulated food jar is a leakproof stainless steel container that keeps meals hot up to 7 hours or cold up to 14 hours for on-the-go lunches and snacks.

Compact and thoughtfully engineered, this Candy Oasis–colored ThermoFlask food jar uses Temp-Lock double-wall vacuum insulation and a screw-top seal to preserve temperature and prevent spills. Built from 18/8 food-grade stainless steel with a BPA-free lid and an easy-grip handle, it’s designed for everyday use at work, school, travel, or outdoor excursions while supporting reusable alternatives to single-use plastics.

How well does it maintain meal temperature throughout the day?

The Temp-Lock vacuum insulation keeps hot foods warm for several hours and cold meals chilled much longer than typical single-wall containers. You can rely on it to hold soups, stews, or hot grains warm for up to around 7 hours, and chilled salads or yogurt for as long as 14 hours, depending on initial temperature and ambient conditions.

• Double-wall vacuum insulation reduces heat transfer
• Approximate hot retention: up to 7 hours
• Approximate cold retention: up to 14 hours
• Wide mouth allows preheated or pre-chilled filling for best results

Is the lid truly leakproof and travel-ready?

The jar uses a screw-on lid with a secure gasket to form a tight seal that minimizes leaks when carried in a bag. While it’s engineered to prevent spills from everyday transport, always ensure the lid is fully tightened and placed upright for the best leak protection.

• Screw-top lid with silicone seal for a secure closure
• Compact 12 oz capacity reduces sloshing from liquids
• Built-in handle for steady carrying and quick access
• Ideal for lunchboxes, backpacks, and tote bags when upright

What materials and cleaning options does the ThermoFlask food jar use?

Constructed from 18/8 food-grade stainless steel, the jar resists flavor transfer, rust, and dents while remaining lightweight enough for daily use. Both the jar body and the lid are dishwasher safe, and the wide opening simplifies hand-washing and reaching the interior for thorough cleaning.

• 18/8 stainless steel interior and exterior for durability
• BPA-free lid materials for food safety
• Dishwasher-safe pieces for convenient cleanup
• Wide mouth that fits utensils and makes scraping easy

How versatile is this food jar for different meals and routines?

The 12 oz size is balanced to hold soups, stews, oatmeal, rice bowls, desserts, or layered salads without being bulky. Its portability and insulation make it suitable for weekday lunches, hiking snacks, childcare meals, and meal-prep portions when you want a reusable container that preserves temperature and freshness.

• Holds single servings of hot or cold meals
• Works for soups, porridges, salads, and snacks
• Compact footprint fits most lunch bags and ice packs
• Colorful Candy Oasis finish adds visual appeal

Who is this for? The ThermoFlask 12 oz Insulated Food Jar is aimed at commuters, parents packing lunches, outdoor enthusiasts, and anyone wanting a sustainable swap for disposable containers. If you value reliable temperature retention, a leak-resistant lid, easy cleaning, and a durable stainless-steel build in a compact size, this jar is a practical everyday companion that reduces single-use plastic waste while keeping your meal ready when you are.