Is it better to spray it on a cloth (so it doesn't spread around) rather than spraying it directly on the object?

Answer

It seems like there is no problem with the spray as long as you don't use it upwards.
You can spray it on the cloth or directly, whichever way you find easiest, but please be careful with your eyes.
Of course, the undiluted solution has the highest cleaning power, so I use a bottle and apply the undiluted solution to a rag before wiping.
It removes dirt quickly with less force, but you will need a lot of it, so I think it's best to dilute it about 10 times.
I feel like kitchen dirt is 100 times lighter.
I also sprayed it on an aluminum pot and left it for 6 hours, but there was no discoloration.
After all, you won't know until you actually test it. .