Usually, I make around 300mL of iced coffee. Here's how I do it:
- Weigh 100g of ice cubes, put in the carafe, and store in the freezer.
- I use 18g of medium roasted arabica, and grind it medium coarse (similar to pour over size)
- Put the coffee ground in Hario Switch and add 200g of boiled water.
- Stir and let it brew for 5 minutes.
- Decant the coffee into the carafe (nr. 1).
- Give a good stirr until all the ice cube melt, and enjoy it directly or put in the fridge for later.
I hope it helps.
I make my cold brew two quarts at a time. My partner likes flavored coffee, so there's always two pitchers of cold brew in the fridge. I drink one of them in about two weeks.
I use the toddy cold brew system. I bought a version that came bundled with a silicone lid and a package of filters. The filters were great, but the best price I could get them for when I ran out was about $1 each which just felt excessive. Instead I got reusable cotton bags. They should pay for themselves in just a few months.