The meaning of "is of"

IhenryHi teachers

What exactly is the meaning of the following sentence?

We are not just selling cheap food but we also make sure the food is of good quality.

Thanks

I'm not sure what you don't understand, so I'll just simplify it to: "We sell cheap food, but it is good".

We sell cheap food, and moreover the quality of the food is good > the food is of good quality.

Yes; "of" can indicate "a characteristic or distinctive quality or possession" (Merriam Webster).

So "is of" here = "has the characteristic of".

MrP

0 Sorry for replying this late, I was away for quite sometimes and not able to access the internet. Anyhow, I think, as I understand it, the sentence below would have the same meaning.02br
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01font01b00We are not just selling cheap food but we also make sure the food 01u00has02u00 good quality.02b02font

1b01font00We are not just selling cheap food but we also make sure the food 01u00has02u00 good quality.02font02b02br
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00You get the idea. But since food is not a person, it sounds funny to say 'food has' good quality. It sounds much better to say 'food is of' good quality. 02br
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0 01blockquote

01cite10Ihenry12cite10Hi teachers12br
12br
10What exactly is the meaning of the following sentence?12br
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11b10We are not just selling cheap food but we also make sure the food is of good quality.12b12br
12br
10Thanks12br
12br
12blockquote

0It is really interesting knowing how natives translate words articulated by non-natives 05002br
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00Many thanks for all the replies.010id1

0Hi guys,02br
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00Her's a small additional comment on usage.02br
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00In informal, spoken English, I think we are more likely to use an adjectival structure. We'd say 01font00This is good-quality food02font00 rather than T01font00his food is of good quality.02font0

0 A form of "to be" followed by "of" and a noun is usually equivalent to "to be" followed by an adjective of similar meaning. It is an idiomatic use of an "of" phrase. Here are some other examples.02br
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00 to be of use = to be useful02br
00 to be of help = to be helpful02br
00 to be of importance = to be important02br
00

0CJ02br
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00I have also seen some people use the following format02br
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01font00Please let me know if I can be any of help in this process.02font02br
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00So, what's the rule applied for this kind of "is of" thingy? Thanks.0-