Additional information
The Rice Husk and Bamboo Fiber Material — What It Is and Why It Matters
This product is made from a food-safe composite of rice husk and bamboo fiber — two materials that originate in agricultural systems and are typically considered waste byproducts of their respective harvests.
Rice husk is the protective outer hull of the rice grain — the papery layer that is removed during milling to produce the white rice that reaches your plate. India produces approximately 20–25 million tonnes of rice husk annually. Most of it is burned in fields or used as low-grade fuel. Converted into a structural material for everyday objects, rice husk becomes a resource that was always renewable, always available, and never valued until now.
Bamboo fiber is derived from bamboo grass — one of the fastest-growing plants on earth. Bamboo reaches harvestable maturity in 3–5 years without replanting (it regenerates from its existing root system), requires no pesticides, and sequesters carbon throughout its growth cycle. Its fibers, when processed into a composite material, add structural integrity and surface texture to the rice husk base — the characteristic speckled, slightly granular finish of these cups is the visible evidence of the bamboo fiber distribution within the material.
The food-safe binding agent that holds the composite together is BPA-free. No toxic plasticisers, no synthetic coatings, no chemical treatments on the drinking surface. The cups are safe for hot beverages (chai, coffee, haldi milk) and cold beverages (lassi, juice, iced coffee) without any material degradation or chemical leaching.
The Kulhad Form — Why the Shape Was Chosen
The kulhad is one of the oldest standardised beverage containers in continuous use in the Indian subcontinent. Its form — a tapered cylinder, wider at the mouth, narrower at the base, with vertical ribbing and no handle — was developed and refined over millennia to serve a specific purpose: holding a hot beverage in the hand without burning, cooling it slightly through the porous clay walls, and being discardable without environmental guilt.
These cups replicate the kulhad silhouette in a durable, reusable material — preserving the form's ergonomic logic (the tapered shape fits naturally in a curled hand, the wide mouth cools the surface of hot chai quickly, the ribbing provides grip) while eliminating the fragility of traditional fired clay. The 100ml capacity is the standard cutting chai measure — the exact amount typically served in a roadside kulhad or a glass at an Irani café.
Microwave, Freezer, and Break Resistance — What These
Claims Mean in Practice
Microwave Safe: The composite material does not contain metal compounds, does not generate heat from microwave energy absorption, and does not leach chemicals when exposed to microwave temperatures. You can reheat chai, warm haldi milk, or heat any cold beverage directly in these cups without removing them from the microwave first.
Freezer Safe: The material does not crack, warp, or degrade when exposed to freezer temperatures. The cups can be used for frozen desserts, chilled beverages, or iced drinks without any material compromise. Thermal shock resistance — the ability to move from freezer cold to room temperature without cracking — is higher in rice husk composites than in standard ceramics or glass.
Break Resistant: Rice husk and bamboo fiber composites have significantly higher impact resistance than traditional clay, terracotta, or standard ceramics. These cups will not shatter if knocked off a counter onto a hard floor under ordinary circumstances. They are not indestructible — no cup is — but their resistance to the casual impacts of daily kitchen use substantially exceeds that of any ceramic equivalent. For households with children, for offices where cups are carried between rooms, and for event catering where cups are handled quickly across many people, this break resistance is a genuine daily-use advantage.
The 100ml Size — The Cutting Chai Standard
100ml is the traditional measure of a cutting chai — the half-glass served at Mumbai tapris, the small kulhad at railway stations, the "cutting" that means half a full glass. This size is specific: large enough to be satisfying, small enough to be drunk warm and in one focused sitting. It is the size that respects the chai — it doesn't give you more than you can drink while it is still hot.
For gifting programs, the 100ml size also means the cups are usable beyond chai: they work for espresso (double the standard shot), for small servings of haldi milk, for lassi shots, for mishti doi, for any small-serve traditional Indian food and beverage format. They are not single-use cups — they are part of the way Indian food culture serves in small, communal portions.