To best maximize your Rambler® Food Jar’s heat retention, we recommend warming the jar prior to use by pouring hot water into it and letting it sit for a few minutes. Once you empty out the hot water, your jar will be warm and you can fill it with your hot food.

The MagVent Lid vents as it opens, which causes a hard stop to occur after the first quarter turn counterclockwise. To remove fully, just keep turning past this point until the lid comes off.

If the lower gray piece of the lid is stuck in the jar, you likely pulled the top piece off too early. Screw the top lid back on until it's fully closed. Then, unscrew the lid counterclockwise, past the resistance, until both pieces come off together.

If the issue persists, please contact YETI at yeti.com/contact-us for assistance. Do not force the lid open with tools of any kind.

No, the Rambler® Insulated Food Jars will not fit directly in a cupholder, but the leakproof lid makes them easy to store in a tote or backpack.

Yes.

Yes, the Rambler® Insulated Food Jars can be used with hot and cold food.

Yes, please use caution when opening the lid if the jar is filled with hot contents. The MagVent lid vents out hot air as the lid is unscrewed, so be aware of any steam that may escape from the area between the lid and the container. Also, it’s important to always open the jar on a flat level surface and be sure to test the temperature of hot contents before consuming.

Yes.

No, the Rambler® Insulated Food Jars were designed specifically for food contents and are only compatible with the MagVent lid.

No. Since they are made with 18/8 kitchen grade stainless steel, they can not be used in the microwave, as fire or personal injury can occur.

Of course! The Rambler® Insulated Food Jars are food-safe, BPA-free, and designed to be used with hot or cold foods. However, they are not designed to heat or cool food to a safe temperature. Also, be sure to always use food safe practices when preparing and serving food.

Yes, Rambler® Insulated Food Jars are 100% leakproof when the lid is securely fastened on.

Yes, Rambler® Insulated Food Jars are double-wall vacuum insulated.

The Insulated Food Jars are designed to be used with all food and liquid types. However, do not use the Insulated Food Jar with carbonated, dairy, or fermenting food or beverages. Over time, these items can cause pressure to build inside the container. If pressure buildup occurs, the cap can be difficult to remove or forcefully eject and cause injury.