# Ember's Mug 3 keeps tea hot without opening your phone

> Ember's third-generation smart mug adds physical controls and practical upgrades to its temperature-keeping design.
- Title: Ember's Mug 3 keeps tea hot without opening your phone
- Summary: Ember's third-generation smart mug adds physical controls and practical upgrades to its temperature-keeping design. Ember released its Mug 3 smart mug with…
- Keywords: ember, mug 3, smart mug, temperature control, hardware, product launch, technology, startups, Ember's, Mug, keeps, tea
- Source: TechCrunch — https://techcrunch.com/2026/10/17/embers-new-temperature-controlled-mug-makes-my-nightly-tea-ritual-even-better
- Author: Lauren Forristal
- Published: 2026-10-17T15:30:00+00:00
- Read time: 2 min
- Topics: ember, mug 3, smart mug, temperature control, hardware, product launch, technology, startups
## Ember solves the cold tea problem
Ember introduced its smart mug in two thousand sixteen to keep drinks warm. The company is now releasing its third-generation mug with practical upgrades.
## Physical button replaces app control
The Mug 3 adds a button on the bottom to cycle through five preset temperatures from one hundred twenty-five to one hundred forty-five degrees Fahrenheit without opening the app.
## Button placement creates usability issue
The bottom-mounted button is difficult to press when the mug holds hot liquid. Users must tilt the mug and press firmly to get it to respond.
## App still offers temperature customization
The Ember app lets users pair the mug over Bluetooth and choose presets. Ember recommends one hundred thirty-six degrees for black coffee, one hundred thirty-two for green tea, one hundred forty-two for lemon water.
## Mug 3 adds spill prevention and dishwasher safety
The Mug 3 includes a sliding lid to prevent spills and keeps drinks at desired temperature for up to three hours on a single charge. It is the first Ember mug that is top-rack dishwasher-safe.
## Mug 3 pricing and color options
The ten-ounce Mug 3 costs one hundred twenty-nine dollars in black, white, and stainless steel. The fourteen-ounce version costs one hundred forty-nine dollars in eight colors including sage green, lavender, and matcha green.
## Ember also launches Tumbler 2
Ember introduced the Tumbler 2, a sixteen-ounce tumbler with a slimmer design to fit standard car cup holders.It costs one hundred seventy-nine dollars in black and replaces both the Travel Mug 2 and original Tumbler.
## Products available at major retailers
The Mug 3 and Tumbler 2 are available for purchase on Ember's website, Target, and Amazon. The Travel Mug 2 remains available until supplies run out.
## Key takeaway

Ember released its Mug 3 smart mug with on-device temperature controls and a three-hour charge, priced from one hundred twenty-nine dollars.