Put your coffee in this and tie a knot in the top, use it like a tea bag. Not sure how well it would work?

https://www.amazon.com/50-Pack-Commercial-Coffee-Paper-Filter/dp/B07L2233NZ/ref=sr\_1\_39?crid=2FR0YUZ0MUGEH

You can use these filter bags and any clean container to brew multiple gallons at one time.