---
product_id: 20260731
title: "HotSmart Keep Hot Mug Patented"
brand: "hotsmart"
price: "$3.21"
currency: USD
in_stock: false
reviews_count: 8
url: https://www.desertcart.us/products/20260731-hotsmart-keep-hot-mug-patented
store_origin: US
region: United States of America
---

# 12 FL OZ capacity Patented heating tech Preheat in 30 seconds HotSmart Keep Hot Mug Patented

**Brand:** hotsmart
**Price:** $3.21
**Availability:** ❌ Out of Stock

## Summary

> ☕ Sip Smart, Stay Hot! 🔥

## Quick Answers

- **What is this?** HotSmart Keep Hot Mug Patented by hotsmart
- **How much does it cost?** $3.21 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/20260731-hotsmart-keep-hot-mug-patented)

## Best For

- hotsmart enthusiasts

## Why This Product

- Trusted hotsmart brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Quick Preheat:** Get your perfect sip in just 30 seconds—no more waiting!
- • **Versatile Use:** Not just for coffee—perfect for gravy and more!
- • **Safe & Easy Handling:** Larger handle design for a comfortable grip.
- • **Stay Hot, Stay Happy:** Experience coffee bliss with our integrated heating technology.
- • **Satisfaction Guaranteed:** Try it risk-free with our money-back guarantee!

## Overview

The HotSmart Keep Hot Mug is a 12 FL OZ mug featuring a patented heating device that preheats in just 30 seconds, ensuring your beverages stay warm. Designed for safe handling with a larger handle, it can be used for coffee, gravy, and more. Plus, it comes with a money-back guarantee for your peace of mind.

## Description

Preheat ONLY 30 SECONDS in the microwave to keep coffee hot. SAFE HANDLING. Patented HotSmart mugs keep adding heat to your coffee (No other mugs in the world do that). (Note: Preheat a couple times before actually using it to get rid of residual odors) In contrast to thermos or double wall mugs, HotSmarts have 3 sources of heat: a) The heat in the coffee itself which is NOT wasted in heating up the mug b) The heat stored in the body of the mug c) The heat that is released slowly by the patented heat storing device integrated which stays HOT for about 30 minutes. Fine porcelain 12 FL OZ mug. This is NOT a regular mug; this is a PATENTED HotSmart with a "Heater integrated.. Preheat the empty mug for 30-45 seconds* -while coffee is brewing- fill it with HOT coffee. That's all you have to do. Keeps coffee HOT for full enjoyment. It needs only 30-45 SECONDS preheating in the microwave oven (maximum, DO NOT EXCEED) . 4. No wires, no batteries; you don't have to plug anything, 5. No risk of fire (Can be used at the office, shop, etc.); Heaters are normally forbidden by insurance companies.. HotSmarts are Green, no toxic materials used. Simply preheat the mug and now you are ready to ENJOY slowly your perfect cup of coffee or tea.. 8. SAFE HANDLING; the handle doesn't get hot. 9. The inventor (myself) has been using and testing the mugs for about 6 years before offering them for sale. A-Z GUARANTEE (As claimed or your money back). *IMPORTANT: You may need to increase preheating to 45 SECONDS if you own a small microwave oven (800 Watt). - NOT dishwasher-safe

## Features

- 12 FL OZ - Preheat ONLY 30 SECONDS; coffee will not get cold (Can be used for gravy too)
- SAFE HANDLING Integrated heater keeps adding heat to the coffee at a controlled rate
- PATENTED heating device integrated. Preheat a couple times before using to get rid of residual odors
- Larger handle. Just microwave 30-45 SECONDS to store ENOUGH heat; tested for years
- AS CLAIMED OR YOUR MONEY BACK GUARANTEE;

## Images

![HotSmart Keep Hot Mug Patented - Image 1](https://m.media-amazon.com/images/I/71hGcRalXjL.jpg)
![HotSmart Keep Hot Mug Patented - Image 2](https://m.media-amazon.com/images/I/51Z1bXshtnL.jpg)
![HotSmart Keep Hot Mug Patented - Image 3](https://m.media-amazon.com/images/I/51xmP6qrsEL.jpg)
![HotSmart Keep Hot Mug Patented - Image 4](https://m.media-amazon.com/images/I/81+s26Sgq8L.jpg)
![HotSmart Keep Hot Mug Patented - Image 5](https://m.media-amazon.com/images/I/51XihM4hDWL.jpg)

## Customer Reviews

### ⭐⭐⭐ 







  
  
    Contents get cold
  

*by G***Y on Reviewed in the United States on April 3, 2013*

This mug is quite heavy for someone who has little strength in their hands/arms.  The contents do stay hot on the bottom,but with no lid, the contents quickly cool off.

### ⭐⭐⭐ 







  
  
    review
  

*by  ***K on Reviewed in the United States on December 7, 2013*

It didn't keep the coffee hot long enough. The seller stated that it would keep it hot longer than that.

### ⭐⭐⭐ 







  
  
    Just another mug
  

*by S***L on Reviewed in the United States on June 16, 2016*

This mug does not keep the coffee hot any longer than my regular coffee mug.

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---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-25*