Syntic 4 Pack 2 Qt Glass Milk Bottles with Handle and Airtight Reusable Screw Lids, 1/2 Gal Glass Water & Juice Bottles with 2 Pour Spouts, 64 Oz Milk Jug Pitcher w Scale

I would reinvest less than half of one year's savings to get glass milk bottles and silicone replacement lids just to be sure I could put them in the dishwasher or boil them to sterilize. You can't reuse plastics for milk in most cases. You can get sick from left over bacteria (baby bottles designed to be sterilized being the exception). Set of 4 1L bottles Set of 4 2L bottles 6 silicone replacement lids I don't usually change links so people don't have to make risky clicks, but Amazon links are notoriously a paragraph long so I did this time. These are just examples I grabbed because they are inexpensive and dishwasher safe, but there are a ton of other options. I'm sure you could find something at a physical store in your area, maybe even cheaper at a Dollar Store or grocery store.