Is the Trek Granite leakproof and rust-free?

Yes, the Trek Granite is leakproof. Its inner-body is rust-free, not its outer body.

Can the Trek Granite be used as a thermos? How long do the liquids retain their temperature?

Yes, the Trek Granite can be used as a thermos. It is made of an insulated double-wall vacuum which keeps the drink hot for 20 hours and cold for 24 hours. Its copper coating assists in maximum temperature retention.

Can the Trek Granite be washed in the dishwasher?

No, the Trek Granite cannot be washed in the dishwasher, and should only be washed with mild detergents.

Can the Trek Granite be stored in the side pocket of a backpack?

Yes, the Trek Granite fits standard-size cup holders and the side pockets of backpacks or bags. It has a cool-to-touch body with hot liquids and stays sweat proof with cold liquids.

Can the Trek Granite be used to store milk or juice? Can it be stored in the refrigerator?

Yes, except for carbonated and alcoholic, the Trek Granite can store any kind of beverages. We recommend you don’t keep the Trek Bottle in the refrigerator since it is an insulated bottle that will retain your drink’s original temperature.