I previously left a very positive review on this cold brew bottle but soon afterwards it broke so I'd like to update my feedback.
Overall I still think this is a well designed bottle that cleans easily and does what it says on the tin. I have decreased my star rating though as it is very brittle and broke easily when knocked over. I know we are responsible knocking it so I'm not blaming the company for my mistake (I'm a big fan of Bird & Blend and will continue to be a regular customer) but I have other glass jars that have held up fine when knocked over whereas the glass of these bottles is thin and shatters fairly easily.
My main advice is if you purchase this bottle, be careful when washing it and try not to leave anywhere it could be knocked over as it's not super hard wearing! :)