Tasting beer in Indian summer heat without losing flavour

The problem with heat

Every beer has a range where it tastes best. Pale lagers show well around 3 to 7 °C, most ales around 7 to 12 °C. Our guide to beer serving temperature covers style by style.

In a cool room, beer drifts slowly through that range and you have time to taste it. On a Delhi terrace in May it races through and out the other side. A beer that is too warm tastes flat, sweet and alcoholic. Its carbonation fades and any faults become louder.

Why ice cold is not the answer

The usual fix is to serve beer as cold as possible, often in a glass straight from the freezer. That works for refreshment and fails for tasting. Very cold beer numbs the tongue and holds aroma in the liquid, so you taste fizz and not much else.

Frozen glasses add their own problems. Ice crystals on the glass make the beer foam and lose carbonation. Freezers also hold food smells that a glass can pick up. Rinse a room-temperature glass with cold water instead. It cools the glass without frost.

Habits that keep flavour in the glass

• Pour small and often. A 100 ml pour you finish in a few minutes tastes better than a 500 ml pint that warms for half an hour.
• Serve slightly colder than ideal. In heat, pour a lager at around 3 °C knowing it will reach 6 or 7 °C by the time you taste it properly.
• Hold the glass by its base or stem. Your hand is a heater.
• Keep the bottle or can in an ice bucket between pours, not on the table.
• Thick glass helps. A heavy dimpled mug warms more slowly than a thin glass.

Get out of the sun

Sunlight does more than warm beer. Light reacts with hop compounds and creates the skunky aroma known as lightstruck. In clear or green glass this can happen in minutes outdoors. Even a beer you poured into a clear glass is at risk in direct sun. Taste in shade. Our guide to lightstruck beer explains the chemistry.

If you are tasting seriously, for a homebrew comparison or to choose beers for an event, do it indoors. An air-conditioned room around 24 °C gives you the time you need.

Look after your palate too

Heat makes everything harder. Keep water on the table and drink it between beers. It refreshes your palate and keeps the session sensible. Avoid tasting straight after a fiery lunch, because chilli heat lingers and flattens everything after it. Plain crackers or bread reset the palate better than salty snacks.

Pick the right beers for the weather. A light lager, a wheat beer or a session pale ale suits a hot afternoon. Save the 10% imperial stout for an air-conditioned evening.

A simple summer tasting set-up

If you want to compare a few beers with friends on a hot day, a little planning makes a big difference:

• Choose a shaded, ideally air-conditioned spot.
• Fill a large tub with ice and water, not just ice. Ice water chills bottles and cans much faster than dry ice cubes.
• Use small glasses, around 150 to 200 ml, so each pour is finished quickly.
• Taste lightest to strongest. Only open each beer when you are ready for it.
• Put out jugs of cold water and some plain snacks. Make sure there are good non-alcoholic drinks for anyone not drinking.
• Keep a notepad. Write one line per beer before you discuss it, so nobody's opinion steers yours.

Four or five beers in small pours is plenty for one session. More than that and your palate tires long before the beers run out, heat or no heat.

Check what heat did before it reached you

Sometimes the damage happened long before you opened the beer. A hoppy beer that sat in a hot warehouse or a shop with the cooler switched off will taste dull and papery, however carefully you serve it. Buy from shops that keep beer cold, check the packing date and drink hoppy beers fresh. Our guide to beer stability in Indian heat covers what happens in transit.

The hard part is telling a beer that warmed in your glass from one that was spoiled before you bought it. Both taste flat. Only one is the brewer's fault. Learning that difference takes practice with known samples.

Common questions

Should I drink beer from a frozen glass in summer?

It feels refreshing but it hides flavour. Ice on the glass knocks out carbonation and very cold beer numbs your palate. Rinse the glass with cold water instead.

How cold should beer be in Indian summer?

Serve slightly colder than the ideal for the style, around 3 °C for a lager, because it will warm quickly in the glass. Small pours help.

Can sunlight really spoil beer in minutes?

Yes. Light reacts with hop compounds and makes a skunky aroma. Clear and green glass offer almost no protection, so taste in the shade.

Why does warm beer taste sweeter?

As beer warms, sweetness becomes easier to perceive, aroma rises and carbonation fades, so the balance shifts away from crisp bitterness.