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.

Thank you, appreciate all the ideas. I will definitely put your ideas to use.