Care & Use Instructions

Before first use: Remove all labels and packaging from your new espresso mugs. Wash each mug in warm, soapy water, rinse thoroughly, and dry completely. This removes manufacturing residue and prepares the glazed surface for espresso.

For espresso and concentrated coffee: The 100ml capacity is specifically designed for authentic espresso service—single shots (25-30ml), double shots or doppio (50-60ml), ristretto (shorter extraction), or lungo (longer extraction). Pre-warm mugs before use by rinsing with hot water or warming briefly in a low oven (around 70-90°C)—this is essential barista practice that prevents cold cups from cooling espresso too quickly and helps preserve the delicate crema layer.

Brewing directly into the mugs: If you have a home espresso machine, these mugs fit beneath the portafilter for direct brewing. Pre-warm the mug, position it centred under the group head, and extract your espresso directly into the warmed mug. The 100ml capacity provides room for double shots with slight headroom. The specialist clay then maintains ideal espresso temperature—hot enough to enjoy the complex flavours but not scalding. The heat retention keeps espresso at perfect drinking temperature longer than standard cups.

Preserving crema: Espresso crema (the golden foam layer) is a hallmark of quality extraction. The stoneware's heat retention helps preserve crema longer than thin ceramic or glass. Pre-warming mugs is crucial—cold vessels cause rapid temperature drop that degrades crema. Pour or brew espresso gently to maintain crema integrity. The 100ml size provides the right surface area to showcase crema beautifully without excessive spreading that thins it out.

Beyond espresso: The 100ml size works beautifully for ristretto (short extraction emphasising sweetness), lungo (longer extraction for more volume), doppio (double shot), Turkish coffee, affogato (espresso over ice cream), liqueur coffee (espresso with spirits), or any concentrated coffee preparation. Also excellent for very strong tea or as serving vessels for individual desserts. The compact size suits any beverage where intensity and quality matter more than volume.

Temperature retention: The specialist clay construction maintains even temperature significantly better than thin ceramic, glass, or porcelain. Your espresso stays at ideal drinking temperature longer—crucial for appreciating the complex flavour notes that emerge at specific temperatures. This heat retention is one of stoneware's key advantages, particularly valuable for espresso where proper temperature dramatically affects taste experience.

Microwave use: The mugs are microwave safe, though espresso is typically consumed immediately after brewing rather than reheated. If reheating espresso (or heating milk for cortados), the compact 100ml size heats quickly. The mug will become warm along with the liquid due to heat retention, so use caution when removing—hold by the handle or use a towel.

Coordinating with Le Creuset cast iron: The three-ring design creates visual harmony with Le Creuset cast iron cookware. If you own Cerise, Azure, or other coloured Le Creuset casseroles or cocottes, you can serve espresso in matching mugs, creating a seamless aesthetic from cooking to coffee. This coordination is particularly appealing when entertaining coffee enthusiasts or simply when you appreciate cohesive kitchen design.

Everyday cleaning: Allow mugs to cool before cleaning. Espresso oils can leave residue inside cups over time—this is normal. Wipe away residue, or for accumulated coffee oils, soak mugs in warm, soapy water for 15-20 minutes before washing. Hand wash and dry, or place in the dishwasher for a full cycle. Prompt cleaning prevents oil buildup that can affect espresso flavour in subsequent uses.

Dishwasher cleaning: The mugs are completely dishwasher safe. Place securely in the dishwasher, typically on the top rack. The vibrant colours are permanent—fired at high temperatures during manufacturing—and won't fade, dull, or wash away through repeated dishwasher cycles. The three-ring design is moulded into the stoneware and won't wear away. Colours remain vivid after years of daily espresso.

Removing coffee oils and stains: Espresso's concentrated oils leave residue that can build up inside mugs, potentially affecting flavour. For deep cleaning, use a paste of baking soda and water, apply to interior surfaces, let sit briefly, then scrub gently with a soft brush. Rinse thoroughly. Some espresso purists clean cups immediately after each use to prevent any oil accumulation. The non-porous glaze prevents deep staining, but regular cleaning maintains optimal flavour purity.

Maintaining the glaze: The scratch-resistant glaze requires no special treatment. The non-porous glazed surface won't harbour coffee oils deep within the material (unlike some porous ceramics), making cleaning more effective. The exterior colours are permanent and won't scratch or chip from normal handling. The three-ring pattern maintains its definition through years of use.

Storage: Store mugs in cupboards or on open shelving near your espresso machine for easy access. The compact 100ml size takes up minimal space—you can fit six espresso mugs in the space of two or three regular coffee mugs. Many espresso enthusiasts keep espresso cups within arm's reach of their machine for convenience during morning routines. The vibrant colours create attractive display even when stored.

Temperature transitions: Whilst the stoneware handles extreme temperatures, avoid sudden dramatic changes. When pre-warming mugs in very hot water or a warm oven, allow them to cool slightly before adding espresso if they're extremely hot (though warm is ideal—you want warm, not scalding). Don't plunge hot mugs into cold water for cleaning. Gradual transitions extend longevity.

Assigning colours: The six distinct colours make it easy to assign each household member or regular coffee guest their own mug. Espresso lovers often have strong preferences about their ritual—having "their" colour adds personal connection. The 100ml capacity is consistent across all colours—everyone gets the same authentic espresso experience in their preferred colour.

For entertaining espresso enthusiasts: When hosting fellow coffee lovers, these espresso mugs demonstrate attention to quality. The proper 100ml sizing shows you understand authentic espresso service, the vibrant colours add personality, and the Le Creuset quality signals your appreciation for fine coffee culture. Pre-warm all mugs before serving to ensure consistent temperature across servings. The rainbow colours create beautiful presentation when serving espresso to multiple guests simultaneously.

Building a coordinated collection: If you own or plan to acquire Le Creuset cast iron cookware, these espresso mugs with matching three-ring design integrate beautifully. Serve espresso in a Cerise mug after cooking with a Cerise casserole—the colour consistency and design harmony create a curated aesthetic that elevates everyday moments into something special.

What to avoid: Don't use these mugs on direct heat sources like stovetops—they're designed for beverages and oven warming only. Don't use harsh abrasive cleaners (though normal washing causes no issues). Don't leave espresso sitting in mugs for extended periods—espresso oils oxidise and can affect flavour in subsequent uses, so clean promptly after drinking.

Long-term value: With proper care, these 100ml espresso mugs should provide decades of daily use. The specialist clays and premium glaze are engineered for longevity, whilst the three-ring design is permanent. Pre-warm before use, clean promptly after espresso to prevent oil buildup, avoid thermal shock, handle carefully to prevent chips, and store thoughtfully. Your Rainbow Set becomes treasured cups that make every espresso special—part of your daily ritual for years to come.

Maintaining warranty coverage: Le Creuset's 10-year guarantee covers manufacturing defects but not damage from misuse or accidents. Follow these care instructions to maintain coverage. Don't expose to thermal shock, don't use on direct heat, don't drop or impact mugs. Normal wear from regular use is expected—minor glaze crazing from thermal cycling over years doesn't constitute a defect.