I think breaking bread is an expression and I don’t think it equates with what most today think is an “ordinance”. There’s more to be said on this...
1 Corinthians 10:16-17 KJV
[16] The cup of blessing which we bless, is it not the communion of the blood of Christ? The bread which we break, is it not the communion of the body of Christ? [17] For we being many are one bread, and one body: for we are all partakers of that one bread.
Our communion is of the blood and body of our Lord. WE are one bread, and partakers of that one bread!
Paul is talking like Jesus did.
John 6:56,63 KJV
[56] He that eateth my flesh, and drinketh my blood, dwelleth in me, and I in him. [63] It is the spirit that quickeneth; the flesh profiteth nothing: the words that I speak unto you, they are spirit, and they are life.
So then, when Paul says if you eat and drink unworthily it has nothing to do with food and drink