Raw Composition & Purity

Crafted from earth.
Fired for life.

Every Lumen & Clay creation begins with naturally sourced mineral clays, sculpted by hand and vitrified at extreme heat to bring enduring strength, quiet tactility, and effortless luxury to your daily table.

100% Non-Toxic Vitrified at 1,280°C Zero Chemical Leaching

Vitrified Stoneware

Non-porous & Chip-resistant

1280°C

100% Food Safe

Certified lead-free & cadmium-free formulas safe for warm dining.

1,280°C Kiln Firing

Full molecular vitrification for non-porous and stain-proof tableware.

Dishwasher Ready

Designed for modern ease. Natural stone holds warmth longer.

24K Gold Accents

Genuine mineral metallic luster hand-painted by master artisans.

The Anatomy of Touch

The Three Core Materials

A deliberate balance of organic earth, elemental heat, and artisan finish.

High-Fired Stoneware
Base MaterialHigh-Density

High-Fired Stoneware

Formed from dense alluvial clay rich in silicates. Fired twice to extreme temperatures until completely non-porous, offering robust chip-resistance and superior thermal insulation for coffee, tea, and broths.

Water Absorption < 0.5% (Vitrified)
Lead-Free Mineral Glazes
Surface CoatFood-Safe

Lead-Free Mineral Glazes

Custom formulas created from pure feldspar, silica, and natural metal oxide pigments. Yields both soothing matte satin and luminous crystal finishes that resist staining and acidic foods naturally.

Toxin Standard FDA & EU Compliant
24K Artisan Gold Luster
Artisan FinishHeirloom

24K Artisan Gold Luster

Liquid gold pigment hand-brushed onto pre-glazed stoneware by generational artisans. A third, low-temperature firing bonds the precious metal permanently to create an iridescent, celebratory rim.

Application Third-Fire Bonded
The Mark of Handcraft

Imperfections that tell a story.

Because each piece is individually thrown on the wheel, dip-glazed, and fired in small batches, subtle shifts in tone, mineral pinholes, and glaze pooling are not flaws — they are the deliberate signatures of the human hand.

No two mugs or plates are indistinguishable clones. Your tableware carries the gentle memory of the artisan who shaped it.

0% Leaching Impervious to hot acids
Zero Lead Pure mineral pigments
Imperfections that tell a story.
Thoughtful Ownership

How to Care for Lumen & Clay

1

Everyday Washing

All non-gold glazed stoneware is fully dishwasher-friendly. For pieces with hand-applied 24K gold luster, gentle hand-washing with mild soap preserves brilliance.

2

Heat & Microwave

Standard glazes are microwave and oven-safe up to 200°C. Avoid sudden thermal shocks (moving directly from freezing cold to boiling water).

3

Stacking & Storage

Because our vitrified foot-rings are finely hand-sanded to protect table surfaces, pieces can be comfortably stacked in your open pantry without scratching.