Bar Keepers Friend

Pros

• Highly effective at removing 'gunk' and burnt food from stainless steel and bare metal.
• Excellent for restoring white ceramic surfaces and farmhouse sinks.
• Useful for stripping old seasoning and carbon from cast iron pans.
• Versatile enough for non-leather parts of sneakers and camping gear.
• Relatively inexpensive and widely available in a powder format.

Cons

• Abrasive nature can dull or damage certain enamel finishes according to some users.
• Often requires significant 'elbow grease' for the best results on tough stains.
• May reveal underlying surface damage (like crazing) once the grime is removed.

Caveats

• Contains oxalic acid and mild abrasives; use with caution on delicate surfaces.
• A specific 'non-stick' version exists for more sensitive cookware.
• Opinions are mixed on enamel safety; some find it safe while others claim it causes permanent dulling.

Best for

• Stainless steel cookware and sinks.
• Restoring ceramic surfaces.
• Stripping cast iron down to bare metal for re-seasoning.
• Removing heavy carbon buildup.

Avoid if

• You are cleaning leather surfaces.
• You are concerned about maintaining a high-gloss finish on delicate enamel.
• You prefer non-abrasive, spray-and-wipe cleaners.