Is there any difference between different brands (including store brands) of butter?

I don't think it matters. Butter is a specific process, if it's made using any other process or any other ingredients then they can't call it butter.

If you don't find a flavour difference at all, go for the cheaper brand.

Different Brands Of Butter

Most of the time a name brand taste better than a store brand. In your case though, you compared both brands and didnt find a major difference between the two. So for you, it makes sense to buy the cheaper brand and save money at the same time.

okay, I don't know if there is a difference between jam and preserves - I can't say that I hear too many people use the word jam at all here- preserves are the whole fruit with pectin and jelly is jelly- sugar and artificial and MAYBE some natural stuff. If jam is something different than these two then I am not aware of it, but here it is generally preserves or jelly, though some don't distinguish and anything that has a fruit flavor that you spread on bread is jelly- I hear people calling preserves jelly all the time , but for them jelly is jelly too.

I'm not exactly sure in your case but I know sometimes you're paying more for the brand name. Now a day's I like to try no name brands in comparison.. some taste funky, but most of the time I don't see much of a difference and it'll cost less.

I've never noticed a difference so I buy generic. It's even cheaper at SAMs Club.

There could be differences as they are likely to be made in defferent factories with different sources of their milk supply. That could be different from the way the cattle are fed, and how.

Chetak