what is the standard donut size
To get the tastiest level of softness to crispness, a ring doughnut should have an average hole size of 0.4-inches (11mm). This is a 'squidge to crisp' ratio of 3.5 to 1. Its diameter should be between 2.8-inches and 3.2-inches (72mm and 82mm). A total of 5.8g of sugar is then needed to evenly coat the doughnut.