303 pieces of glazed stoneware Lead-free and cadmium-free, as stated on the range The price at checkout is the current one
BosmarlinGlazed stoneware for the table
Reactive Travel Mug with Handle, 18 oz, Deep Purple

Reactive Travel Mug with Handle, 18 oz, Deep Purple

$19.994.0285

A reactive glaze over stoneware, in deep purple. The kiln finishes the band where the colours meet, so this piece carries the same glaze as the one photographed and a pattern of its own.

Holds 18 oz to the brim, sold singly, made for coffee.

Colour: Deep Purple

In the range · Travel Mugs

Kiln finished
Lead-free glaze
Dishwasher safe
No two alike
Piece information
WhatThis piece
Capacity18 oz
In the box1 piece
GlazeReactive
ColourDeep Purple
BodyGlazed stoneware
HandleHandle
LidIncluded
DishwasherSafe
MicrowaveSafe
Glaze materialsLead-free, cadmium-free
Weight1.6 lb
ReferenceBM-BRU6
Every figure here belongs to this piece. Where the maker states no figure, the row stays out instead of carrying an average.
What the glaze does

Reactive glaze carries mineral oxides that travel while the piece fires. Thickness, kiln position and the shape underneath all pull the boundary between the colours around, so speckles land differently and a fade can sit higher or lower on the next piece.

More about how our glazes behave

Care
  1. 1. Warm it firstRinse a cold piece in warm water before you pour something boiling into it.
  2. 2. Cloth betweenStack with a cloth in the gap. Glaze is glass, and glass scratches glass.
  3. 3. Cloth, not wireWarm water and a cloth take off everything a mug picks up in a week.
Care for glazed stoneware, written for the pieces we actually make.

When stacking glass or ceramic items for storage, place a cushion of soft material between each piece.

the Canadian Conservation Institute

Read 14 August 2026. More on the care and safety page.

What buyers wrote

8 reviews for this line and its variations, quoted word for word, lowest rating first.

★☆☆☆☆

Lids coming apart and lids not fitting - VERY BAD design

This is getting a one star review for 2 very important reasons:1. Mugs and lids are VERY inconsistent with different sizes of mugs & lids which are supposed to the same but are NOT actually the same. Some lid/mug combinations are so loose it leaks like crazy or it is so TIGHT you cannot even put the lid on at all!2. Lids break VERY easily. I had one lid where the slider came off when I was gently washing the lid by hand and it cannot be put back on! Another lid I swear that slider thing came off simply soaking the lid in warm water!! Took the lid out of the water and the slider literally just fell off!I was able to return 3 of 6 mugs I purchased before the return window closed but apparently I'm stuck with the other 3.This is a VERY BADLY designed mug & lid. This product needs to be pulled off the market until the company gets their act together and fixes these MAJOR design issues. There is literally NO EXCUSE for these kinds of problems!

AllenMcw · Reviewed in the United States on May 1, 2025 · bought: Color: Deep Purple
★★★☆☆

Needs Improvement

Great look, great color, coffee stays warm. Howeve, Not functional, needs improvement around rim at lid , leaks after every sip.

Magnanimousx4 · Reviewed in the United States on August 12, 2026 · bought: Color: Peacock Blue
★★★★☆

Nice but not hot

Love the style and color and quality and it fits in car cup holder but it doesn't keep the coffee warm for very long. I'm spoiled with my Yeti but wanted to get away from the metal.

cowgirlcincy · Reviewed in the United States on March 13, 2026 · bought: Color: Peacock Blue
★★★★★

Beautiful with best customer care

The cup is beautiful. It's so special that it's hand made. It arrived with a broken lid but I contacted the company and they sent a replacement within days. They have been great so responsive letting me know what to expect. Definitely worth buying you won't be disappointed.

sheila Mays · Reviewed in the United States on June 26, 2026 · bought: Color: Light Grey Blue
★★★★★

Great mug. Top fit perfectly.

Great mug. Some previous comments complained the top did not fit or fit too tight. My top fit like other insulated drink cups. I will add this to my Christmas gift list.

Matt Clark · Reviewed in the United States on July 27, 2026 · bought: Color: Deep Purple
★★★★★

Great Buy

It is so convenient while moving around and the coffee stay hot love it

Kathy · Reviewed in the United States on July 14, 2026 · bought: Color: Peacock Blue
★★★★★

Replacement

The mug arrived and the lid was very difficult to remove. When I got it off, the gasket around the lid tore, sticking to the mug and could not be used. There was a card in the mug to contact the company which I did. They wanted the order # and a description and pictures of the problem. I complied. They sent a new travel mug with a new lid. It arrived in perfect condition. I was told if it didn't, they would send it again. They were very good to communicate with me. Bosmarlin has wonderful, pleasant customer service!

Janis Robertson · Reviewed in the United States on January 16, 2026 · bought: Color: Peacock Blue
★★★★★

the travel mug fits in cup holder and fitted open & close lid.

size, leak-proof, ease of cleaning, lid quality, weight, does not hold long heat temperature

Ann Bush · Reviewed in the United States on June 1, 2026 · bought: Color: Deep Purple

More Bosmarlin travel mugs

All 13 Travel Mugs

What you are holding

The same eight things are true of every piece we make.

Fired hard

Stoneware fires dense, so it holds heat and shrugs off the knock against a tap.

Glaze that moves

Mineral oxides travel in the heat, so the firing draws the line between colours.

Handles for full mugs

A large mug carries a handle you can put a whole hand through.

Made to stack

Wide feet and even rims, so a shelf of them sits flat.

A Bosmarlin mug in a reactive glaze

Dishwasher and microwave

Stated on nearly every piece in the range, and true of the glaze rather than a hope.

No two alike

Speckles land differently and a fade can sit higher or lower on the next piece.

Lead-free and cadmium-free

As stated on the range. The care page spells out what that means.

Sized for real drinks

From 8.5 oz for a cappuccino to 50 oz for a mug of soup.

Stoneware, porcelain and earthenware

Three words used loosely on the same shelf. They describe how hot the clay was fired and how much water it will still absorb, and that difference decides how a piece behaves in a dishwasher, in a microwave and against the edge of a sink.

Stoneware, what we make

  • Fired hot and dense, so it absorbs almost no water
  • Heavy in the hand and stable on a desk
  • Chips are rare, and a chip does not soak up coffee
  • Holds heat noticeably longer than a thin cup

Porcelain

  • Fired hot too, but thrown thin and light
  • Elegant, and far easier to chip on a tap
  • Cools faster because there is less body to hold heat
  • Usually sold as a full service rather than by the piece

Earthenware

  • Fired lower, so the body stays porous
  • Depends entirely on its glaze to hold liquid
  • A crazed or chipped glaze lets the body absorb
  • Lighter and cheaper, and shorter lived in daily use

The three words describe firing temperature and how much water the fired body still takes up. Everything else follows from that.