How long does the Cold1 40 oz keep drinks cold?

The Cold1 40 oz keeps drinks cold for 40 hours.

Cold1 40 oz

Customer Reviews

4.3 out of 5, based on 216 ratings

and im still buying.

Rated 5 out of 5 by janie on 2026-10-27

it was an accident that i even tried this cup. then the nxt morning my ice from the previous day was still formed in the cup. just full. ice cold. i had to look this up on the internet. i found a whole size and color pages i could pic from. ive bought 2 so far from you on line plus the one given to me. i showed a co-worker and she had been looking for a good drinking mug to take to work that really kept her drink cold. she has now 2. still telling people.

Best tumbler available

Rated 5 out of 5 by CorgiMom2050 on 2026-08-29

Reduce mugs are the best. The handle is easy to hold and the tops stay on the top if accidentally dropped or knocked off a side table. Reduce has a huge selection avaiable and I love all the ones I have. These are stainless steel and last forever. I have purchased reduced tumblers (I call them mugs) since they have started selling these lovely mugs. I have 24, 40, and 50 oz mugs. Love all of these. Best customer service too. You can't go wrong purchasing anything from Reduce.

So far the best tumbler I own!

Rated 5 out of 5 by Lauren P on 2026-08-23

I just moved to southern Mississippi, and the old tumblers I had just couldn't keep up with the heat down here. I purchased this tumbler because i loved the beautiful seaglass color, fully not expecting it to stay cold all day, BUT IT DID!!! I left it in the car while taking my parent to an all day appointment in the hospital. When I came back to the car, it was 110°F in the car, the outside of my Cold1 was hot... but it was still full of ice on the inside! It blew me away that my drink was still ice cold, after 4 hours in the car in a parking lot. I love my Cold1 so much, I purchased a 2nd, and a 32oz Halo as well. When I make room for more, I'll be back!

My cup

Rated 5 out of 5 by Freddy on 2026-08-16

So, I've had my cup for few years now, I didn't notice the bottom until today, but mine is old enough to where it doesn't have the logo on It... I love this cup and I highly recommend it for everyone

Love it

Rated 5 out of 5 by Cuppy on 2026-08-14

Great cups! I only use for cold, keeps drinks cold for a really long time

My husband bought me one to match his when

Rated 5 out of 5 by Susan on 2026-07-19

My husband bought me a 40oz cup to match his because it fit in his car's cup holder when we got married. It is an amazing cup. The open handle allowed us to hang it somewhere else if we had other drinks.

Would buy again.

Rated 5 out of 5 by Thirsty on 2026-05-07

We have seven Reduce tumblers now in 3 different sizes/variations. They are all very effective and keeping water/beverages COLD for hours and hours and hours.

I love these Tumblers!

Rated 5 out of 5 by Dee on 2026-04-15

I am a handicapped senior. I need a cup that has a handle, is not to heavy to lift but also holds alot…..enter the 40oz tumbler. It is perfect for my needs….my only problem is finding replacement straws.

Love my new 40 oz cups!

Rated 5 out of 5 by Froggie on 2026-02-21

I originally bought my first Reduce cups many years ago. Decided I needed some new colors! They keep my water cold all day. Love everything about them. Highly recommend.

Love my cup!

Rated 5 out of 5 by Sula on 2026-01-11

I use my beloved cup everyday. I love it. I've had it for 9 months and is still great. Only sad point, I wish I could get a replacement straw for my 40oz cup.