Adding 1” of foam to beer glasses can save 43 glasses per half a barrel of beer. These savings can greatly increase your restaurant's profits throughout the year. To ensure that your beer glasses are ready for at least 1” of foam, be certain that they are cleaned and dried before pouring or you will lose the foam.
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Using washer racks that are designed for beer glasses according to size measurements is the safest way to ensure that your beer glasses are being thoroughly cleaned. You can match beer glasses by their serial number to the racks to ensure a perfect fit.
Here's a little trade secret: never refill a customer's beer glass because the foam won't form. Always serve the beer in a fresh glass.