Thermos

[bykfixer]

Yes, if you have a bottle brush to clean it inside. The stainless outside cleans up pretty easy too.
You remove the cap (or lid if you will) then unscrew the top to pour instead of a flow through top like many so there are less places to hide residuals like sugary coffee or a tomatoe based product.

 

[5S8Zh5]

Before I cut carbs (and gluten / wheat / processed flour), I used to make steel cut oats in a thermos.

 

[kreisl]

How about the STANLEY Adventure Stacking Pint (ASP, 18$), anyone been using these luxurious beer thermo cups?

All YouTube reviews are in Brazilian (apparently a popular product over there!) comparing it to 4$ AX buildalikes; either is made in the chinas.

i bought the original in Polar White finish and wrote some review.

 

[The Hawk]

I bought a Stanley stainless steel thermos 30+ years ago. It still works great. You all may already know this, but if you are putting a hot beverage in it, first fill it with hot water and let it sit for several minutes. Pour that hot water out and then fill it with coffee (or whatever hot beverage you desire).