New Lott Vacuum flask 24 houre working

If you're looking for a vacuum flask that can keep liquids hot or cold for 24 hours, here are some top options to consider ¹:
- *Thermos Ultimate Series 500ml*: This flask is a top performer, keeping liquids hot for up to 24 hours. It's durable, relatively lightweight, and has an integrated cup. 
- *Earthwell 20oz Roaster Loop Bottle*: This flask has a standard double-wall vacuum insulated build and keeps liquids hot for up to 24 hours. It's also leak-proof and has an integrated lid that functions as a cup. 
- *Hydro Flask 32oz Wide Mouth*: This flask keeps liquids hot for up to 24 hours and has a wide mouth for easy filling and cleaning. It's also BPA-free and dishwasher safe. 
- Stanley Classic Legendary Bottle 0.75L: This flask keeps liquids hot for up to 24 hours and has a wide mouth for stirring coffee or adding ice cubes. It's made from 18/8 food-grade stainless steel and is BPA-free. 
- *Outwell Wilbur Vacuum Flask*: This flask keeps liquids hot for up to 24 hours and has a stainless steel construction with a copper-coated inner wall. It's also leak-proof and has a lid that can be used as a cup. 

When choosing a vacuum flask, consider factors such as:
- *Insulation*: Look for flasks with double-walled or vacuum insulation for better temperature retention.
- *Material*: Stainless steel flasks are durable and non-toxic.
- *Leak-proof*: Ensure the flask has a secure lid or stopper to prevent spills.
- *Ease of cleaning*: Choose a flask with a wide mouth for easy filling and cleaning.

To maximize the performance of your vacuum flask:
- *Pre-warm or pre-chill* the flask before filling.
- *Fill to the top* to minimize heat loss.
- *Use ice* for cold drinks to keep them chilled longer.