No — and that's by design. The exterior is real bamboo, which gives the bottle its warm-to-the-touch feel and natural look. The interior is food-grade stainless steel — that's what your water actually contacts. Bamboo isn't food-safe as a liquid container; the steel inner is what keeps your drink clean.

Around 12 hours either way. Double-wall stainless steel insulation handles a full work day — morning chai is still warm in the afternoon; cold water poured at 9 am is still cold at 9 pm.

Yes. The interior is food-grade stainless steel — no plastic in the liquid-contact zone. BPA-free and non-toxic.

There's a removable strainer that sits at the lid. Add loose tea, herbs, or fruit slices to the strainer; pour hot water in; let it steep. Sip through the lid. Remove the strainer when the brew is strong enough.

The lid is precision-sealed for everyday carry — fine in a tote, a backpack, a gym bag for normal commute and travel use. Don't store it horizontally for long stretches with hot liquid; the seal is meant for upright carrying.

Wipe the bamboo exterior with a damp cloth — don't soak. The wide mouth opening makes the steel interior easy to hand-wash with mild soap. Avoid the dishwasher; it's hard on the bamboo wrap over time.