Hydraulic disc brakes not sticking after replacing pads and bedding in So i first bleed my brakes and really botched it, getting brake oil everywhere. I cleaned up, got new pads and wiped the rotors down. I got new brake pads which i the proceeded to bed in. Eventually they stuck well and I declared them ready to go and put my bike away. About 2 weeks later I get it out again, and the brake doesnt stick well, and is squeaking. I sand the brake pad and bed it in again and then braking performance improved. Now i took my bike out and it seemed like the same thing happened. 

Is it that the brakes arent fully bed in yet? Why would my braking improve then become worse after I put my brake away?
Place a wooden ruler or a piece of paper folded 8 times instead of disk rotor to check brakes.
Then take your rotor and pads and thow them away to get new one.

When oil gets between rotor and pads, your pads get oiled and they will place oil onto new rotor.

Rotor itself can still contain some oil on it after washing, you will not be able to remove it. So old rotor will place oil onto new pads.

That is why you need to replace both.

The other way is to overheat your pads and rotor in open flame for about 10..15 minutes. Open fire will burn oil, but it is dangerous - pads may blow up and rotor may get screwed, so this is "i have no money" way