I find cold brew much stronger than a regular filter made with my Chemex/siphon.
When I wanted to give it a go without buying special equipment I just used a plastic bottle stuck in the fridge overnight and filtered it through a regular filter in the morning (French Press works well for that stage).
I think I normally used a ratio of around 70g/litre, for anywhere between 8 (at home) to 14 (at work) hours.
I find cold brew much stronger than a regular filter made with my Chemex/siphon.
When I wanted to give it a go without buying special equipment I just used a plastic bottle stuck in the fridge overnight and filtered it through a regular filter in the morning (French Press works well for that stage).
I think I normally used a ratio of around 70g/litre, for anywhere between 8 (at home) to 14 (at work) hours.