Doug Miller wrote:
In article , "dave" wrote:

Muriatic acid might work if you remember to be extremely careful not to
touch it or breathe the fumes.

Probably not. Acids will attack the bricks, but do nothing to the grease. A
strong alkali such as lye or washing soda would be a better bet: it will
attack the grease, and do nothing to the bricks.

Muriatic acid won't do much at all to the brick but will tend to
dissolve mortar if the joints are (didn't note if OP said). (There's a
reason it's used for cleanup of new masonry where needed ).

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