If you are able ~ and want to sweeten, I use honey or maple syrup but for those needing a little touch of sweet, I've also used alternatives like stevia
We want to strain 'herb tea' through a coffee filter (easy!) or a very fine sieve.
Soaking the berries also allows some of their acid to be released, resulting in a tastier infusion.
There are very fine hairs which can irritate our throat, so use a fine sieve. (I used two together and it worked very well!)
Need to sweeten it up? Too tart? Add some honey or maple syrup to your taste!