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TWO DECADES OF CRAFT
Two Decades
of Thermal
Mastery.
Founded in 2003, HANYAGELAS began with a singular conviction: that what holds your drink matters as much as the origin, roast, leaf, and extraction itself.
FIG. 01 — KILN EXTRACTION1,600°C
Hand-gathering molten quartz silica for rotational graphite moulding.
ACOUSTICS OF TASTE
Why Glass is the Ultimate Vessel for Coffee, Matcha & Teas.
When specialty coffee, ceremonial matcha, or loose-leaf teas are extracted, they release hundreds of delicate aromatic volatiles—floral jasmine, crisp bergamot, umami sweetness, and vibrant fruit acids.
Traditional materials like metals and thick ceramics often mute these nuances. Metal imparts ionic conductivity and metallic traces, while glazed earthenware absorbs and retains residual oils that oxidize over time.
Laboratory-grade 3.3 Borosilicate Glass is chemically inert. It offers a totally non-reactive surface, zero flavor transfer, crystal-clear color appraisal, and thermal insulation that keeps your pour at the exact sensory sweet spot from first sip to last drop.
“We don't just manufacture cups. We engineer transparent acoustic chambers for the volatile aromatics of coffee, matcha, and fine tea.”
DISCIPLINE & SPECIFICATIONS
ISO 3585 LAB QUALITYThe Four Material Standards.
Thermal Shock Resilience
Engineered from 3.3 thermal borosilicate glass to withstand sudden boiling water or flash-chilled ice baths without structural stress, cracking, or optical clouding.
Complete Chemical Inertness
Unlike porous ceramics or metallic containers, pure quartz silica does not react with coffee fruit acids, delicate matcha catechins, or botanical tea tannins.
Sensory Lip Ergonomics
Every rim is diamond-wheel calibrated and laser-flame polished to 1.2mm, delivering velvet micro-foam, crema, and clear infusions with zero fluid turbulence.
Heirloom Material Longevity
Crafted without heavy metals or chemical glazes. Designed to remain pristine through decades of high-volume cafe use and daily home rituals.
ATELIER WORKFLOW
HANDMADE IN LIMITED BATCHESFrom Molten Silica to Your Vessel.
011,600°C
MOLTEN SILICA FUSION
High-purity quartz silica and boron trioxide are melted inside electric induction furnaces to produce bubble-free optical clarity.
02HAND GATHERED
ROTATIONAL MOUTH-BLOWING
Master glassmakers gather molten gathers on stainless blowpipes, rotating continuously into precision graphite molds.
03STRESS RELIEVED
12-HOUR ANNEALING LEHR
Fresh vessels undergo a 12-hour gradual cooling cycle in an automated lehr tunnel to eliminate internal molecular strain.
04LASER CALIBRATED
DIAMOND CUT & INSPECTION
Rims are laser-sliced, diamond-honed, and subjected to boiling-to-ice thermal shock cycles before receiving the studio hallmark.
2003YEAR ESTABLISHEDTwo Decades of Craft
1,600°CFURNACE MELT TEMPHigh-Purity Quartz
-20° / 150°CTHERMAL RESILIENCEFreezer to Boiling
500+GLOBAL PARTNERSCafes & Tea Houses