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Configuring Tare Weights and Units of Measure

When working with weighed menu items, you must configure the unit of measure by which the item is weighed, as well as the tare weight if the item is sold in a container.

In the Toast POS system, a weighed menu item is weighed by a unit of measure, which can be in ounces, pounds, grams, or kilograms. The unit of measure controls how weights enter the Toast POS system.

Restaurants often use containers to hold weighed menu items, such as cups for frozen yogurt or bowls for use at salad bars. When the menu item is weighed, the total weight includes the food and the container. The weight of the container is called the tare weight. Because the item is weighed with the container, the Toast POS system must know the tare weight of the container, so that it can subtract the tare weight from the total weight of the menu item when the item is priced. As a result, the guest is not charged for the weight of the container, only for the weight of the food.

You can configure tare weights and units of measure at different levels of the menu hierarchy (menu level, menu group level, or menu item level). For levels below the menu level, you can specify that the configuration should be inherited from a higher level or you can set a specific tare weight and/or unit of measure at that level.

When deciding at what level to set the unit of measure, keep in mind that all menu groups and menu items have the inheritance flag set to true by default. If you do not change the defaults, then setting the unit of measure at the menu level means that every item in the menu will be weighed (even non-weighed menu items). This can result in a "scale disconnected" error for every menu item when it is added to an order. Two recommendations for using inheritance are:

  • Restaurants that only have a few weighed items should set the unit of measure to NONE at the menu level and then set a specific unit of measure at the item level.

  • Restaurants that weigh every item can set the unit of measure at the menu level and set exceptions at the item level.

To perform these configuration tasks, you use the Menus configuration pages in the Toast administration back-end. To edit menus, you need either the Restaurant Admin > Local Menu Edit permission (for local menu editing) or the Restaurant Admin > Edit Full Menu permission (for full menu editing). For more information, see Understanding menu editing permissions for enterprises.

The following two procedures describe how to configure the tare weight and unit of measure for menus and menu items. The procedure for menu groups is very similar to that of menu items, so is not documented.

To configure the tare weight and unit of measure at the menu level

  1. Access the Toast administration back-end.

  2. Select Menus.

  3. On the Menus page, select the menu you want to configure.

  4. In the Weighing section, configure the following fields:

    • Tare Weight: Enter a number for the tare weight.

    • Unit of Measure: Check None or one of the units of measure.

    After your changes, the Weighing section may look similar to this example:

    The Weighing section of a menu configuration page.
  5. Save and publish your changes.

To configure the tare weight and unit of measure at the menu item level

  1. Access the Toast administration back-end.

  2. Select Menus.

  3. Navigate to the menu item and then scroll to the Weighing section.

  4. In the Weighing section, configure the Inherit Tare Weigh from Menu Group option:

    • If you select Yes, an Inherited Tare Weight section is displayed to show from where the tare weight is inherited.

    • If you select No, specify tare weight here, a Tare Weight field is displayed, where you can enter the tare weight.

  5. In the Weighing section, configure the Inherit Unit of Measure from Menu Group option:

    • If you select Yes, an Inherited Unit of Measure section is displayed to show from where the unit of measure weight is inherited.

    • If you select No, specify unit of measure here, a Unit of Measure list is displayed, where you can choose a unit of measure.

    After this step, the Weighing section may look like this example:

    The Weighing section of a menu configuration page.
  6. Save and publish your changes.