If you have a maple wood pusher, you can soak it in olive oil if it dries out. Place 1/2 inch of olive oil in a pan and roll the wooden pusher around in the oil to coat it.
Stand the pusher up in the pan of oil and let it soak for 24 hours. Allow to drain and drip for another 24 hours.
Wipe and dry with towel and it is ready to use.