All Coors lager glasses are now nucleated to make a great pint even greater. Special nucleation points at the bottom of the glass provide a point for the CO2 to ‘break out’ of the lager to form and maintain the correct head. It’s the little things that make a difference - read on for more top tips!
For best results always renovate new glasses before use: this removes residual lubricant from glass manufacture. Glass cleanliness should then be checked regularly using a rinse test to make sure glasses are maintained in a ‘beer clean’ condition. If necessary, they can be renovated every couple of months to maintain hygiene standards.
Wet glasses do not work – the enamelled etching at the bottom gets wetted in the glass washer – it takes at least 40 minutes for glasses to dry upside down. When you’re busy wet glasses will give you a poor pint – either purchase a glass dryer (it only takes four minutes with one of these), or turn your glasses the right way up to dry (ensure they are under a covered shelf), then it only takes 10 minutes!
Only use the glass washer for glasses! Coffee cups and Bailey’s Irish Cream glasses can lead to fat being deposited on glassware (water is re-circulated) causing poor head on beer.
Use a branded nucleated glass: standard lager served in a non etched glass will only keep its head for three to four minutes (toughened glass is smoother than the old type of glassware).
Ensure glasses are cool, clean and dry. A dirty or wet glass stops the etching from working - the etching sites get blocked by dirt, water has a high surface tension that ‘sticks’ to the nucleation sites.
Check jets weekly. They get blocked quickly by things like lemon peel, cherries and pips.
If using a hedgehog glasswasher ensure the glasses are rinsed thoroughly; detergent affects heads.
Only use brewery or manufacturer recommended cleaner – dishwasher products are not suitable. They can affect head retention – they were designed for lasagne dishes.
Clean every seven days with warm, hand hot water (approx 40 degrees centigrade). Cleaning cold reduces the effect (every 10 degree reduction in temperature halves the reaction rate). This is especially important in extra cold lines where you could effectively be cleaning at zero.
Always switch off coolers before cleaning – see above.
Turn off gas or lift keg couplers every night. This saves gas and reduces the risk of over carbonating your beer, leading to fobbing and waste.