Groenenberg stainless steel coffee cup to go, 473 ml

Why it is on the list

Vacuum-insulated screw-lid travel mug in stainless steel with a silicone base, available in 350 and 470 ml.

Watch out for

The screw lid is not a one-hand design and the listing only promises heat for at least 4 hours.

We have not physically tested these products. Our shortlist is research-based: we check what the listing says, favour non-plastic main materials and name the limits we can see. Always read the listing for sizes, certifications and care instructions.