About the oven secret:
To turn Sand into Glass, We need an oven heat which is (OVER 9000) a staggering 12000 degrees of heat to turn sand into glass. The highest recorded temperature from an oven is 260 degrees, meaning this can not reach.
To turn Snow into fresh grass (Snow is pure water), we need to melt it at around 32 degrees. Saying our oven is the highest (it can reach 260 degrees) it is possible.
It would be impossible to melt Grass into Dirt as it will just burn.
P.S If that 1p was heated by electricity, it might mean in RobbyZ's eyes, 6 folds the highest temperature, surely reaching the temperature. But it will be also be melting you when you're near it.