---
product_id: 2900245
title: "Zojirushi SM-SA48-BA Stainless Steel Vacuum Insulated Mug, 1 Count (Pack of 1), Black"
brand: "zojirushi"
price: "$63.65"
currency: USD
in_stock: true
reviews_count: 13
category: "Zojirushi"
url: https://www.desertcart.us/products/2900245-zojirushi-sm-sa48-ba-stainless-steel-vacuum-insulated-mug-1
store_origin: US
region: United States of America
---

# Safety lock prevents accidental spills Keeps drinks hot up to 6 hrs Maintains cold beverages for hours Zojirushi SM-SA48-BA Stainless Steel Vacuum Insulated Mug, 1 Count (Pack of 1), Black

**Brand:** zojirushi
**Price:** $63.65
**Availability:** ✅ In Stock

## Summary

> 🔥 Sip smarter, stay hotter, and never miss a beat! 🔒

## Quick Answers

- **What is this?** Zojirushi SM-SA48-BA Stainless Steel Vacuum Insulated Mug, 1 Count (Pack of 1), Black by zojirushi
- **How much does it cost?** $63.65 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/2900245-zojirushi-sm-sa48-ba-stainless-steel-vacuum-insulated-mug-1)

## Best For

- zojirushi enthusiasts

## Why This Product

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

## Key Features

- • **Microwave Safe & Durable:** Combines convenience with premium stainless steel durability for everyday use.
- • **Easy-Clean Nonstick Interior:** Spend less time scrubbing and more time savoring your favorite beverages.
- • **Lightweight & Portable Design:** Sleek 16oz stainless steel mug weighs just 8 ounces—perfect for on-the-go professionals.
- • **Unrivaled Temperature Retention:** Keeps your coffee piping hot for 5-6 hours, cold drinks refreshingly chilled all day.
- • **Secure Flip-Open Lid with Safety Lock:** Innovative lock mechanism ensures zero accidental spills during your busy commute or meetings.

## Overview

The Zojirushi SM-SA48-BA is a premium 16oz stainless steel vacuum insulated mug designed for professionals who demand exceptional temperature retention. It keeps beverages hot for up to 6 hours and cold for hours longer, featuring a secure flip-open lid with a safety lock to prevent spills. Lightweight and easy to clean, this mug blends sleek design with practical durability, making it the top choice for millennial managers on the move.

## Description

Zojirushi Stainless Steel 16oz. Mug has a vacuum insulation that keeps beverages hot or cold for hours. Easy-to-clean nonstick coated interior. Tight fitted flip-open lid keeps beverages hotter or colder than travel mugs. Safety lock to prevent the lid from opening accidentally (NEW pictograph lock). Lightweight design for added portability.

Review: Trying to be objective, this is a top performer. - I was not satisfied with the performance of my travel coffee mugs, so I set out to find one that would keep my coffee hot for as long as possible. I gathered together a variety of travel hot beverage containers from my own personal collection as well as any others I could borrow. Some that I found do a remarkable job of retaining heat. Presumably, these same containers will be remarkable at keeping beverages cold as well. Don’t want to get into the thermodynamics of it, but at room temperature, the change in temperature from hot to ambient is always faster and more noticeable than the change from ice cold to ambient. OK, so I wanted to do something more than just a subjective comparison of different containers. It doesn’t do much to say my coffee is warm, hot, or scalding after 3 hours, so I decided to do a quantitative temperature comparison. First I filled them with boiled water, and then measured the temperatures over 24 hours or more. I’m uploading the results in tables and graphs. See for yourself how each one performs over several hours. The comparison includes some generic double-walled cups that might only be insulated with Styrofoam, or maybe even just air. These were grouped together as the worst performers. The best performers were the vacuum wall stainless steel cups. These were somewhat similar in performance, but there were a few that were much better than others. I recently bought a Contigo, 20 oz. vacuum wall stainless steel travel cup with a screw-on top with a pop-up opening. Nice, and much better than anything I was using at the time. Then I heard about the acclaimed performance of Zojirushi travel cups, so thought I’d try one. In short, it was amazing. If possible, it was too good, because if I filled it with hot coffee straight from the coffee pot, I ended up with coffee that was too hot to drink for at least 3 hours. Yes, I heard that complaint from other reviewers, but didn’t believe it. It’s true. Maybe not too surprisingly, one of my oldest thermos bottles was the best performer. Unfortunately, it has a vacuum glass liner and a very small opening. That makes it somewhat undesirable to use for travel or carry. Overall comments: Zojirushi containers are great at heat retention, and they are beautiful. Also, the Life Sky UQTOGB is a beautiful deep red. Life Sky says it’s red, and you better believe it’s really red, unlike the Zojirushi that claims to be red, but is really a rose or pink color. The Life Sky does not leak, even when the top is loose. The top seal is different from the similar style Zojirushi The Life Sky seal is wider that the Zoji seal, and as a result of that, the seal tightens down when the top is turned only a half-turn, and forms a leak-proof seal. If the Life Sky top is tightened too much, it gets to be very hard to loosen later. Tighten it just enough to be leak-proof, and it’s much easier to open later. Zojirushi containers do not leak, and the tops are easy to turn, but because of the thinner seal, they need to be tighter. Some reviewers say they have trouble with the Zojirushi SM-YAE48-GA, but I have had no problem at all. This one did not leak, and like the Life Sky, the seal is thicker, so the characteristics are similar. Separately, I compared a few stainless steel “sports bottles” which have screw-on tops, but do not have any pop-up covers for drinking. These are from Life Sky, Geysa, Glacier Point, and Simply Simily. Simply Simily and Glacier Point bottles were larger in size, but not so much larger in volume. They were better at heat retention, presumably because they have more space between the walls. The Life Sky and Geysa bottles were almost identical, the main difference is that the Geysa bottle has a highly polished exterior. It did not perform any better than the Like Sky bottle, which is about half the price. The screw tops were so similar that they were interchangeable between the Glacier Point, Like Sky, and Geysa bottles. One thing I noticed will all, is that at the top where there is no vacuum wall, they all get warm. These comparisons were run at 3 separate times. Once with 10 different cups of varied construction. Then 2 more times, keeping the groups among cups with similar designs. Update 3/16/16: I'm not happy with the way my graphics uploaded to this review. The original was high resolution, but desertcart reduced the size to the point that it's unreadable. So here's some raw data. These are temperatures vs elapsed time in hours & minutes. The column headings are numbered, and the number key is below the temperature data. If you look at the heat loss vs time, the best performer was an old glass-lined vacuum thermos jar with a loss of 54 deg at 19 hrs, 30 min. Second place was the Zojirushi at a loss of 61 deg at the same time. Watch for more reviews to be added to some other travel vacuum bottles. Hot Beverage Container Temperature (F.) vs. Time Hrs Min 1 2 3 4 5 6 7 8 9 10 0 0 190 181 181 179 174 165 159 168 165 174 0 40 186 168 177 168 143 132 125 138 136 168 1 5 185 165 176 163 134 120 114 127 123 167 2 5 177 158 172 150 107 98 95 107 104 163 2 30 176 154 170 147 102 93 91 100 96 161 3 15 172 149 167 140 96 84 82 91 89 159 4 0 167 145 165 132 87 70 70 82 75 156 11 30 140 114 145 96 66 62 62 64 64 131 19 30 118 93 127 86 113 29 30 100 80 111 75 Hot Beverage Container Heat Loss (F.) vs. Time Hrs Min 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 40 -4 -13 -4 -11 -31 -33 -34 -30 -29 -6 1 5 -5 -16 -5 -16 -40 -45 -45 -41 -42 -7 2 5 -13 -23 -9 -29 -67 -67 -64 -61 -61 -11 2 30 -14 -27 -11 -32 -72 -72 -68 -68 -69 -13 3 15 -18 -32 -14 -39 -78 -81 -77 -77 -76 -15 4 0 -23 -36 -16 -47 -87 -95 -89 -86 -90 -18 11 30 -50 -67 -36 -83 -108 -103 -97 -104 -101 -43 19 30 -72 -88 -54 -93 -61 29 30 -90 -101 -70 -104 Brand 1 Subzero camp thermos 2 Thermos Food jar 3 Thermos glass-lined bottle 4 Contigo travel vacuum bottle 5 COPCO 6 BODUM 7 Starbucks 8 Holland America 9 Generic 10 Zojirushi SM-SA48-NM
Review: Best insulated coffee mug for daily use - I’ve been using this Zojirushi thermos for over six months, mainly for work; I use it daily for coffee or other hot beverages during my long shifts. Although it is compact, it holds enough to last me eight hours or even longer. It keeps coffee piping hot for about five or six hours, and even after eight hours, the temperature remains good. Even though I open and close it repeatedly throughout the day, it still maintains the right temperature very well. It is the best travel mug I have ever used for daily purposes. Plus, it has a fantastic design and size, and I love the color I chose. All in all, I would definitely recommend it.

## Features

- Original Zojirushi SM-SA48-BA Stainless Thermos Mug Bottle 16oz

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00HYOGTTG |
| Age Range Description | Adult |
| Best Sellers Rank | #2,753 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #37 in Insulated Cups & Mugs #244 in Travel & To-Go Drinkware |
| Brand | Zojirushi |
| Brand Name | Zojirushi |
| Capacity | 16 ounces |
| Color | Black |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.7 out of 5 stars 32,799 Reviews |
| Global Trade Identification Number | 04974305208170 |
| Included Components | Stainless Mug |
| Item Dimensions W x H | 2.75"W x 8.63"H |
| Item Type Name | Stainless Steel Vacuum Insulated Mug |
| Item Weight | 8 ounces |
| Manufacturer | Zojirushi |
| Manufacturer Part Number | ZOSA48BA |
| Material | Plastic, Stainless Steel |
| Material Features | Insulated |
| Material Type | Plastic, Stainless Steel |
| Model Number | SM-SA48BA |
| Number of Items | 1 |
| Occasion | Home |
| Other Special Features of the Product | Lightweight, Microwave Safe |
| Pattern | Solid |
| Product Care Instructions | Hand Wash Only |
| Product Style | 16-Ounce |
| Recommended Uses For Product | Coffee, Soup, Tea, Water |
| Reusability | Reusable |
| Shape | Round |
| Size | 16 Ounces |
| Special Feature | Lightweight, Microwave Safe |
| Specific Uses For Product | Cold Drinks, Hot Drinks |
| Style | 16-Ounce |
| Theme | Space |
| UPC | 778293096535 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Zojirushi
- **Capacity:** 16 ounces
- **Color:** Black
- **Material:** Plastic, Stainless Steel
- **Special Feature:** Lightweight, Microwave Safe

## Images

![Zojirushi SM-SA48-BA Stainless Steel Vacuum Insulated Mug, 1 Count (Pack of 1), Black - Image 1](https://m.media-amazon.com/images/I/413kDjStI7L.jpg)

## Available Options

This product comes in different **Color, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Trying to be objective, this is a top performer.
*by T***M on March 8, 2016*

I was not satisfied with the performance of my travel coffee mugs, so I set out to find one that would keep my coffee hot for as long as possible. I gathered together a variety of travel hot beverage containers from my own personal collection as well as any others I could borrow. Some that I found do a remarkable job of retaining heat. Presumably, these same containers will be remarkable at keeping beverages cold as well. Don’t want to get into the thermodynamics of it, but at room temperature, the change in temperature from hot to ambient is always faster and more noticeable than the change from ice cold to ambient. OK, so I wanted to do something more than just a subjective comparison of different containers. It doesn’t do much to say my coffee is warm, hot, or scalding after 3 hours, so I decided to do a quantitative temperature comparison. First I filled them with boiled water, and then measured the temperatures over 24 hours or more. I’m uploading the results in tables and graphs. See for yourself how each one performs over several hours. The comparison includes some generic double-walled cups that might only be insulated with Styrofoam, or maybe even just air. These were grouped together as the worst performers. The best performers were the vacuum wall stainless steel cups. These were somewhat similar in performance, but there were a few that were much better than others. I recently bought a Contigo, 20 oz. vacuum wall stainless steel travel cup with a screw-on top with a pop-up opening. Nice, and much better than anything I was using at the time. Then I heard about the acclaimed performance of Zojirushi travel cups, so thought I’d try one. In short, it was amazing. If possible, it was too good, because if I filled it with hot coffee straight from the coffee pot, I ended up with coffee that was too hot to drink for at least 3 hours. Yes, I heard that complaint from other reviewers, but didn’t believe it. It’s true. Maybe not too surprisingly, one of my oldest thermos bottles was the best performer. Unfortunately, it has a vacuum glass liner and a very small opening. That makes it somewhat undesirable to use for travel or carry. Overall comments: Zojirushi containers are great at heat retention, and they are beautiful. Also, the Life Sky UQTOGB is a beautiful deep red. Life Sky says it’s red, and you better believe it’s really red, unlike the Zojirushi that claims to be red, but is really a rose or pink color. The Life Sky does not leak, even when the top is loose. The top seal is different from the similar style Zojirushi The Life Sky seal is wider that the Zoji seal, and as a result of that, the seal tightens down when the top is turned only a half-turn, and forms a leak-proof seal. If the Life Sky top is tightened too much, it gets to be very hard to loosen later. Tighten it just enough to be leak-proof, and it’s much easier to open later. Zojirushi containers do not leak, and the tops are easy to turn, but because of the thinner seal, they need to be tighter. Some reviewers say they have trouble with the Zojirushi SM-YAE48-GA, but I have had no problem at all. This one did not leak, and like the Life Sky, the seal is thicker, so the characteristics are similar. Separately, I compared a few stainless steel “sports bottles” which have screw-on tops, but do not have any pop-up covers for drinking. These are from Life Sky, Geysa, Glacier Point, and Simply Simily. Simply Simily and Glacier Point bottles were larger in size, but not so much larger in volume. They were better at heat retention, presumably because they have more space between the walls. The Life Sky and Geysa bottles were almost identical, the main difference is that the Geysa bottle has a highly polished exterior. It did not perform any better than the Like Sky bottle, which is about half the price. The screw tops were so similar that they were interchangeable between the Glacier Point, Like Sky, and Geysa bottles. One thing I noticed will all, is that at the top where there is no vacuum wall, they all get warm. These comparisons were run at 3 separate times. Once with 10 different cups of varied construction. Then 2 more times, keeping the groups among cups with similar designs. Update 3/16/16: I'm not happy with the way my graphics uploaded to this review. The original was high resolution, but Amazon reduced the size to the point that it's unreadable. So here's some raw data. These are temperatures vs elapsed time in hours & minutes. The column headings are numbered, and the number key is below the temperature data. If you look at the heat loss vs time, the best performer was an old glass-lined vacuum thermos jar with a loss of 54 deg at 19 hrs, 30 min. Second place was the Zojirushi at a loss of 61 deg at the same time. Watch for more reviews to be added to some other travel vacuum bottles. Hot Beverage Container Temperature (F.) vs. Time Hrs Min 1 2 3 4 5 6 7 8 9 10 0 0 190 181 181 179 174 165 159 168 165 174 0 40 186 168 177 168 143 132 125 138 136 168 1 5 185 165 176 163 134 120 114 127 123 167 2 5 177 158 172 150 107 98 95 107 104 163 2 30 176 154 170 147 102 93 91 100 96 161 3 15 172 149 167 140 96 84 82 91 89 159 4 0 167 145 165 132 87 70 70 82 75 156 11 30 140 114 145 96 66 62 62 64 64 131 19 30 118 93 127 86 113 29 30 100 80 111 75 Hot Beverage Container Heat Loss (F.) vs. Time Hrs Min 1 2 3 4 5 6 7 8 9 10 0 0 0 0 0 0 0 0 0 0 0 0 0 40 -4 -13 -4 -11 -31 -33 -34 -30 -29 -6 1 5 -5 -16 -5 -16 -40 -45 -45 -41 -42 -7 2 5 -13 -23 -9 -29 -67 -67 -64 -61 -61 -11 2 30 -14 -27 -11 -32 -72 -72 -68 -68 -69 -13 3 15 -18 -32 -14 -39 -78 -81 -77 -77 -76 -15 4 0 -23 -36 -16 -47 -87 -95 -89 -86 -90 -18 11 30 -50 -67 -36 -83 -108 -103 -97 -104 -101 -43 19 30 -72 -88 -54 -93 -61 29 30 -90 -101 -70 -104 Brand 1 Subzero camp thermos 2 Thermos Food jar 3 Thermos glass-lined bottle 4 Contigo travel vacuum bottle 5 COPCO 6 BODUM 7 Starbucks 8 Holland America 9 Generic 10 Zojirushi SM-SA48-NM

### ⭐⭐⭐⭐⭐ Best insulated coffee mug for daily use
*by D***S on July 3, 2026*

I’ve been using this Zojirushi thermos for over six months, mainly for work; I use it daily for coffee or other hot beverages during my long shifts. Although it is compact, it holds enough to last me eight hours or even longer. It keeps coffee piping hot for about five or six hours, and even after eight hours, the temperature remains good. Even though I open and close it repeatedly throughout the day, it still maintains the right temperature very well. It is the best travel mug I have ever used for daily purposes. Plus, it has a fantastic design and size, and I love the color I chose. All in all, I would definitely recommend it.

### ⭐⭐⭐⭐⭐ Coffee fan? This is the ONLY bottle you should buy.
*by D***N on June 16, 2026*

STAYS HOT - DISHWASHER SAFE - NO SPILLS alright. I can’t recommend these Zojirushi mug/bottles enough. They exceed their promises. First of all - we make French press in the early mornings and pour it into these for drinking during the day. When I tell you the coffee we rinse out last thing at night is still PIPING HOT, I’m not exaggerating. Unbelievable thermal efficiency. Secondly - we have no fear of the durability when it comes to occasional drops (they happen) and running them through the dishwasher. The lids pop apart very easily for cleaning. Couldn’t be easier. After years of various bottles getting used and run dozens of times, each one performs as if new out of the box. We haven’t even had to replace so much as a seal. And finally - I found this company because anyone who rides a motorcycle knows any leak from their bottle catches the wind and you’re wearing it for the rest of the day. The lids pop apart on these bottles won’t leak, even if shaken upside down - and even with pressure changes. There’s a sliding lock to prevent accidentally opening them. Every other bottle I’ve used that claims they don’t leak has disappointed. These exceed their promises. We give them as gifts now. Friends are becoming fans. And so many colors, nobody’s confused whose coffee is who’s. Finally - and this is just personal preference - we get the ones that are UNLINED inside the bottle. I know they make a Teflon style coated version. We don’t feel the need for those, so consider this review for the straight stainless style, only.

## Frequently Bought Together

- Zojirushi SM-SA48-BA Stainless Steel Vacuum Insulated Mug, 1 Count (Pack of 1), Black
- Zojirushi Stainless Steel Mug, 16oz, Smoky Blue

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-13*