I use small spice jars for making my batches, and woody things last longer than squishy ones. i.e. orange rind dried is lasts longer than orange rind fresh. However, fresh orange rind gives a different taste and is cool if you're doing a cocktail night, or something. You can do things that you can't do any other way like this.
Cloves, Sassafras root, ginger, juniper berries, rosemary, lavender, sage. All have great effect.
Also, Ultrasonic makes EXCELLENT sangria. This is the only way to do sangria, IMO.
You can either use bitters to add to sangria, or just put wine and other things directly into the ultrasonic and infuse that way. It works great with herbs. For fruits, you should really just use the juice or crush them with a mortar and pestle. Any fruit soaking in the sangria is purely for show. IMO, all sangria should have sage in it. Sassafras in small quantities makes cheap red wine taste about 2 shelves better. YMMV.
