Try Magic Eraser Sponges, available at most stores that sell cleaning supplies. They really ARE magic for things like this very often! Worth the effort.
Probably not, plus it will get worse over time.
I've an old George Foreman with similar marking.
Neither oxygen nor chlorine bleach works - plus it smells.
The only thing that very slightly works is a good hard scrub with something quite aggressive, oven cleaner or barman's friend etc, which will eventually take all the paint off.
You'll just have to live ...
If you want to mechanically dislodge stuff without any scratching, try cleaning it with a silicone spatula, the ones made for baking. They can "lick" a bowl of mousse clean. For something like a meatloaf, a few stray bits will stay, but they should be small enough to get cleaned with a sponge. The large amounts of grease and clumps of protein will be gone. ...
The secret to getting meat loaf off is to first soak it in cold water for a good 15 minutes or longer. Cold water soaks are good for high protein food like eggs and meat as well as starches like oatmeal. On a scratch-able surface I like to use a butter knife to gently pry off the material that doesn't wipe off after a soak. Fingernails work too if yours are ...
Make a bath of lye and soak items fully submerged.
Lye will dissolve anything organic, including mothers-in-law.
Lye is very caustic and will burn skin and damage eyes.
Wear gloves and eye protection.
It's also not very good for septic systems.
Milk Line Cleaner is a thing - its intended to clean milk pipes in automatic espresso machines.
Downside, this is a liquid which is mixed at 1:25 with water, and is then pumped through the lines/pipes by a dedicated cleaning cycle built into the espresso machine.
If your lines are ...
When you ran milk though the machine you cooked a lot of fat and protein into the components, which isn't good. The only "easy" thing I could recommend is to try to run some clear vinegar through it, the acidity may break down the milk residue and clear the machine.
The only other way to get it working isn't as easy as it requires manually removing the ...
Before migrating the question to cooking.SE, someone commented on the home-improvement.SE like this:
That comment was true. I pull off the rotating center part a bit and it just came out of its plastic lock system. Locking system looks like this:
I am not sure if you can prevent the nozzle from ever clogging, though I am trying the regular olive oil now.
I tried the spraying hot water method which was helpful, but didn't completely clear the nozzle. I have been using extra virgin olive oil.
The tool that did the trick is a DenTek Easy Brush for Extra Tight Spaces, if you happen to have one lying ...
Water will indeed help best, but will need a long time to get to the inside of a thick patch of dough.
I would sugest first physically breaking it apart with your fingers until it's crumbly. Then trying to gently brush out as much as possible. There is this motion which is best for highly matted hair or fur which should work here too:
Hold a strand firmly ...