Joybuy Insights

Buying a Set of Drinking Glasses: What to Consider When It Comes to Size, Material and Care

A set of drinking glasses is a staple in many homes. Yet buying the wrong set can lead to unnecessary expense: it may look just right in the product photos, but prove too small for everyday use, not be dishwasher-safe or be intended only for cold drinks. So whether you’re choosing water glasses, highball glasses or double-walled drinking glasses, don’t focus on looks alone.

Common pitfalls when buying drinking glasses

1. Confusing the number of glasses with their capacity

A set of 6 drinking glasses may sound like a practical choice for families or entertaining guests. But the capacity of each glass matters too. Glasses holding 200 to 250 ml are better suited to smaller servings, while 310 to 380 ml gives you more room for water, juice and soft drinks. For cocktails or larger long drinks, 450 ml may be a better choice.

Also check whether the stated capacity is the glass’s brimful capacity. A glass that holds 310 ml won’t be filled to the brim if you’re adding ice, a garnish or foam.

2. “Glass” doesn’t automatically mean heat-resistant

Ordinary glass isn’t necessarily suitable for hot drinks. A sudden change in temperature, such as pouring boiling tea into a glass that has held cold water, can create stress and, in some cases, cause it to break. Heat-resistant glasses should be specifically approved for hot drinks. For double-walled drinking glasses, also check whether the product description gives specific guidance on temperature range, microwave use or cleaning.

Even with borosilicate glass, it’s important to follow the manufacturer’s instructions and handle it with care. Avoid moving it straight from the freezer to a boiling-hot drink unless this is explicitly stated as safe.

3. Dishwasher-safe claims aren’t always consistent

Not every dishwasher-safe glass is suitable for every dishwasher programme. Check the product details and follow any guidance on temperature, positioning and detergent. Handwashing may be preferable for hand-painted, decorated or particularly delicate glasses.

For example, according to the product details, the Secret de Gourmet set of six glasses, each with a 380 ml capacity, is not dishwasher-safe. That doesn’t mean it’s unsuitable for everyday use, but cleaning should be part of your buying decision.

The key things to consider

Capacity and shape

For everyday use, sets of water glasses holding around 300 to 400 ml are often a versatile choice. Slim highball glasses leave plenty of room for ice and mixed drinks, but need more clearance in your cupboard. So check the outer dimensions and the height of your shelves before you buy.

  • 200 to 250 ml: smaller servings, coffee, tea or compact drinks
  • 250 to 310 ml: water, juice, soft drinks and everyday drinks
  • 350 to 450 ml: long drinks, cocktails and larger, refreshing drinks
  • 450 ml with a handle: desserts, parfaits, milkshakes or breakfast servings

For food, dessert glasses or handled glass mugs are often a better choice than traditional drinking glasses. For example, a 450 ml set from Dexam is designed for yoghurt, pudding, ice cream, parfaits and smoothies, and is listed as dishwasher-safe in the product description.

Material and construction

Soda-lime glass is commonly used for drinking glasses. Double-walled models are often made from borosilicate glass. The double wall can help regulate the temperature of the outer surface when serving hot or cold drinks, and reduce condensation. However, don’t assume that these glasses are automatically suitable for boiling liquids.

When choosing, look for clear information from the manufacturer, including:

  • Material and capacity
  • Guidance on hot and cold drinks
  • Whether the glasses are suitable for the dishwasher, microwave or freezer
  • Warnings about thermal shock
  • Diameter, height and number of glasses in the set

Care and everyday use

A set for everyday use should suit your cleaning routine. If you use the dishwasher regularly, clearly labelled dishwasher-safe glasses are a practical choice. Models that aren’t dishwasher-safe will need to be washed by hand. Cracks, chips and deep scratches are safety reasons to stop using a glass.

Ideal for: Budget-conscious first-time buyers
Secret de Gourmet Set of 6 Glass Tumblers - 380 mL, Transparent

Secret de Gourmet Set of 6 Glass Tumblers - 380 mL, Transparent

Why this product suits this profile: With six glasses, each holding 380 ml, this set is a good choice for households looking for matching glasses for water, juice and soft drinks.

How this product avoids the pitfall

The capacity and number of glasses in the set are clearly stated. The fact that they aren’t dishwasher-safe is also made clear, so you can take this into account before buying.

Key benefits and strengths

Set of 6 glasses, each with a 380 ml capacity, in a transparent finish.

Ideal for: Buyers with high quality standards
Secret de Gourmet Gaspard Tall Glass Set - Clear Glass, 36 cl, Set of 4

Secret de Gourmet Gaspard Tall Glass Set - Clear Glass, 36 cl, Set of 4

Why this product suits this profile: The tall, slim shape and 36 cl capacity make these glasses suitable for water, juice, soft drinks and cocktails, whether you’re enjoying everyday meals or entertaining guests.

How this product avoids the pitfall

The product details explicitly state that the glasses are dishwasher-safe, but also specify that they’re suitable only for cold and room-temperature drinks.

Key benefits and strengths

4 tall glasses, each with a 36 cl capacity, a clear glass finish and stated dishwasher-safe suitability.

Ideal for: Specific uses and frequent use
BODUM PAVINA Pack of 6 - 250ml Double Walled Thermo Glasses

BODUM PAVINA Pack of 6 - 250ml Double Walled Thermo Glasses

Why this product suits this profile: The double-walled design and 250 ml capacity make these a good fit for households that want to serve coffee, tea and cold drinks in smaller portions.

How this product avoids the pitfall

These are described as double-walled thermal glasses, with a clearly stated capacity. Before using them for hot drinks, check the full care and temperature guidance.

Key benefits and strengths

6 double-walled glasses, each with a 250 ml capacity, described as thermal glasses in the product name.

Looking for more options?

We’ve put together a complete, regularly updated list of products that meet these strict selection criteria and fully comply with the safety regulations in force in the EU.

Frequently asked questions about sets of drinking glasses

How many drinking glasses should a household set contain?

Four glasses may be enough for two people. Families and households that regularly entertain guests have more flexibility with a set of 6 drinking glasses. As well as the number of people in your household, consider whether you’ll be washing glasses in the dishwasher or want spares to hand.

What size is best for water glasses?

Glasses holding around 250 to 400 ml each are versatile for water, juice and soft drinks. If you often serve ice or larger drinks, choose taller highball glasses with a greater capacity.

Are double-walled drinking glasses dishwasher-safe?

It depends on the model. The term “double-walled” alone doesn’t tell you whether a glass is dishwasher-safe. Check the product page and care instructions. If you’re unsure, handwashing with mild washing-up liquid is the gentler option.