Optimus Primus!

 Primus© Vacuum Bottle (1 ltr)

Double-walled vacuum bottle in powder coated stainless steel with ClickClose seal and combined lid and mug. Offers excellent insulation and low weight without sacrificing durability.


In use


With the recent Winter chill and Snow covered mountains it has certainly stood up too the test. I’ve been taking it out on 6+ hour hikes and amazingly had some left over after arriving home, poured out and still had hot tea!

Size / Weight

The 1ltr version I have serves me well on long winter hikes, but it can get heavy and bulky when the hikes are shorter, or the need for a hot beverage is a nice luxury and not a necessity. Luckily they do come in a range of sizes (250 ml (8.8 oz) / 350 ml (12.3 oz) / 500 ml (17.6 oz) / 750 ml (26.5 oz) / 1000 ml (35.3 oz)) It’s just a matter of forking out for a smaller size in order to save on weight and space.

Special features

Matt black finish

The main product lines for Primus© have a clear colour branding indent, and this bottle is no different with a rough and ready Matt Black finish. Not only is this aesthetically pleasing but it cleverly serves as good grip when trying to open, this is especially welcomed in the wet and/or cold.

Click/Close seal cap

My bottle came with a choice of two caps, a bog-standard twist cap and the more nifty Click/Close seal Cap. While the twist cap is recommended when carrying a nice home made soup, the Click/Close seal cap comes into it’s own with any liquid beverage, not only making it a doddle to pour a quick drink at a literal Click of a button, but also maintaining heat retention to a maximum with minimum exposure.



All in all this is probably the best Vacuum Bottle I’ve ever owned, and I would highly recommend it. In fact Primus© in general is worth a look, and with a range including Food vacuum Bottles, Commuter Mugs and Drinking Bottles I think this Primus© Vacuum Bottle will only be the first of a collection from the Primus© family!


Tryfan Williams

I’m a Welshman born and raised in the shadow of Snowdonia, and you could say the Mountains are in my blood with a name like Tryfan! I would class myself as a relative newcomer to the outdoor pursuits arena, and so my articles will be my attempt to chronicle my adventures, hopefully learning as I go and giving those that are in a similar boat an insight / forum to share and learn.

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