Barista Oat Milk with 100% compostable packaging

Tetra Paks are technically recyclable somewhere, but probably not in your city. The great irony of plant-based milks is they all come in those ding dang Tetra Paks! I'm not ragging on the Tetra Pak company—I'm sure they are lovely—I'm just used to referring to those multi-layered, multi-material beverage cartons by the brand that popularized (invented?) them. It's like Kleenex. You get it. My shop, Dear Diary Coffeehouse goes through about 192 of those little cartons every month, and we're still in a COVID recession. That's so much landfill waste! In October 2019 I set my mind to solving this problem. I considered buying grocery store plant milk, but we go through so much, I wouldn't have refrigeration space. In that sense Tetra Paks are helpful, but still. So wasteful. I then tried making house-made oat milk by pureeing oats, straining them, adding oil... A quart of barista oat milk costs $2.30—I could make gallons for that amount of money, right? Oats are