To scale based on efficiency;
- On the website, select the recipe from the 'My Recipes' section and select 'edit recipe' from the menu at the top of the page.
- Once the edit page has loaded, you will be able to select ‘Scale’ from the menu at the top of the page.
- From the pop-out window, select the heading ‘Efficiency'. Enter your target efficiency and click ‘Scale’ at the bottom of the pop-out window.
To scale based on Original Gravity, see here.