When you make cold brew with Driftaway Cold brew bags, our recipe suggests using 1 part coffee to 7.33 parts water, and then we recommend a dilution after brewing of 2 parts coffee to 1 part water. So, once diluted, the final coffee to water ratio would be 1 part coffee to 11 parts water.
Keep in mind, this ratio is for use with our mesh bags.
Here's our full recipe for brewing with Driftaway cold brew bags: https://driftaway.coffee/makingcoldbrew/
And you can buy our Driftaway cold brew bags here: https://driftaway.coffee/coffees/