Probably just frothy to give it more body, man. Might be able to get the same result from having a [hand held milk frother like this handheld one at Amazon

It's a real game changer for milk drinks. I've gifted a bunch of these and everyone loved em

I'm not entirely sure, mud has pretty good customer service tho so if you reach out I'm sure someone would be able to help, mine stopped working after a year, like it still spins but the battery is really quick to die, Amazon has a bunch of little whips like that for pretty cheap that you can get, this is one one I got Zulay Original Milk Frother Handheld Foam Maker for Lattes - Whisk Drink Mixer for Coffee, Mini Foamer for Cappuccino, Frappe, Matcha, Hot Chocolate by Milk Boss (Black) https://www.amazon.com/dp/B09D8T11YS/ref=cm_sw_r_apan_i_23X476SVC5VVZZ861N99?_encoding=UTF8&psc=1