wiwens Insulated Food Jar 32oz (Blue) – Wide-Mouth Vacuum Stainless Steel, Leakproof

The wiwens 32oz Thermo Food Jar is a wide-mouth, vacuum-insulated stainless steel lunch container built to keep soups hot and salads cold for hours while staying leakproof and portable.

Designed for commuters, students and office workers who want a reliable way to transport full meals, this 970 ml insulated food jar uses double-wall 18/8 stainless steel and vacuum insulation to maintain temperature. It includes a removable inner bowl to separate foods, a sealed silicone cover in each compartment, a hidden folding spoon, and a leakproof threaded lid with an exhaust valve for safe opening. Small details like the anti-slip silicone base and concealed handle make it practical for everyday use.

How long will this jar keep my food hot or cold?

The double-wall vacuum construction preserves heat for up to 6 hours and cold for up to 8 hours under normal conditions. Performance depends on how full the jar is and whether you preheat or precool it before filling.

• Hot retention: up to 6 hours when preheated with hot water for 10–20 minutes.
• Cold retention: up to 8 hours if refrigerated or precooled for 10–20 minutes.
• Best results when jar is filled to limit air inside and lid valve is managed before opening.

What keeps the jar from leaking, and how do I open it safely?

The jar uses a threaded lid, internal silicone sealing ring, and silicone compartment covers to prevent spills. An exhaust valve releases built-up pressure for safe and easy opening after transporting hot foods.

• 100% leakproof design with silicone ring and tight thread closure.
• Compartment silicone caps stop cross-contamination and liquids from escaping.
• Open the exhaust valve and wait five minutes before turning the handle to remove the lid easily.

How does the inner bowl and spoon make packing meals easier?

The included removable inner bowl creates a separate compartment ideal for soups, stews, or sides, while the hidden folding spoon stores inside the lid so you always have utensils without extra bulk.

• Inner bowl separates wet and dry foods to preserve texture and flavor.
• Hidden folding spoon ensures you have cutlery without extra containers.
• Wide mouth simplifies filling, eating, and cleaning by hand or with a bottle brush.

How big is the jar and what materials are used?

This model holds 32 oz (approx. 970 ml), a practical size for full lunches or multiple servings. The body and inner components are made from food-grade 18/8 stainless steel with durable silicone seals and base for stability.

• Capacity: 32 oz / 970 ml — suits teens, women, and adults.
• Material: 18/8 stainless steel interior and exterior for safety and corrosion resistance.
• Anti-slip silicone base prevents rolling and protects surfaces from scratches.

Who is this for? The wiwens Thermo Food Jar is ideal for anyone who brings meals on the go: office workers who need a warm lunch, students with limited microwave access, parents packing healthy meals for children aged 3 and up, and outdoor enthusiasts who want compact, spillproof food storage. It’s a practical choice when you want temperature control, portion separation, and built-in utensils without carrying multiple containers. Follow the preheat/precool tips and exhaust-valve step for best results and easy opening.