Have a dedicated brush or sponge just for your beer glasses. Don’t use one that is used for other dishes / pots etc.3. Don’t use dishwashing soap – these contain oils and create suds which can cling to the glass, killing head retention. Instead use bicarb soda sprinkled inside the glass or on a sponge/brush. Give it a light scrub and then rinse.4.

First, give your glasses a wipe inside and out with a clean sponge, to remove any visible dirt. Then leave your glasses to soak in some hot water to sterilise them. While your glasses soak, make a paste of three parts bicarbonate of soda to one part of salt, and a little water.

An alternative to dishwashing soap when hand washing your beer glasses is to sprinkle a bit of bicarb soda on them, give them a scrub, then rinse them. Avoid washing your glasses only in water, as this can lead to a bio-film build up over time.