How to keep a Paint brush fresh with paint on it?

I wrap mine in foil and stick them in the freezer. 😇

Wrap it in grocery bags using tape to make an airtight seal. Works for rollers as well.

I wrap the brush or the roller in plastic, followed by foil and a large food storage bag, then place in the freezer. I pull the roller or the brush from the freezer and remove the food storage bad and foil before I set up everything to start painting. Once I'm ready to paint, I pull the plastic and off I go.

Wrap it in foil and put it in the fridge. I also do oil painting but with my artist-type brushes, they are immediately dunked in no-odor turps then washed well in soap and water.

Foil is best - fridge or freezer. Good luck!

Wrap tightly in Saran Wrap. Should still be fresh and moist the next day.

Tightly wrap in a plastic bag (ziplock, sandwich, whatever size fits)

Tightly wrap in plastic wrap and place in the refrigerator for short term storage. For long term they can go in the freezer.