The EUSSR are still trying to be relevant.

I've been to France from time to time, not impressed with a lot of it tbh and Paris is the biggest shithole to drive around, ever.

That said, now we're out of the Customs Union, duty free is back.
Duty free makes it worth visiting.

Well not in the UK where the regulation doesnt affect what the quality of what is for sale is defined.

In fact there is no regulation on what percentage of fruit is in jam. The declaration is voluntary as a selling point.
And i find it offensive that you think only "housewives" shop. Housewives disappeared 50 years ago.

If there is, why are you criticising the EU for doing the same?

Well if there is the requirement to do so in the UK, some of your politicians did the same thing.

By the way the description of fruit and sugar content in the EU began in 2001.

eur-lex.europa.eu/EN/legal-content/summary/fruit-jams-and-sweetened-chestnut-pur-e.html

This is merely a tweak.

Go find something important. The desperate scramble for silly, inaccurate and petty details of anything to do with the EU is getting ridiculous.
You really should find something useful to do that contrubutes to the recovery of your own economy instead of bitching vainly about what the EU has and is doing and which has no effect on you.

You have chosen and supported that the UK unhitches itself from the EU. Then wanted an FTA. First, that is an impossible position. Second it was one of those lies Boris told...he pedalled any dream you wanted and had no direction himself.

So to criticise the fruit content of a directive of 2001 and the UK was happy to follow is a pathetic snowball that already has melted before you can throw it.

Many UK jams would already reach the arbitrary threshold now set by the EU.

Some French jams may have to rebrand if they don't change their ingredients. It seems it's going to be a pain in the arse more for EU jam producers.

There's really no purpose to this that I can see. Most jam produced in the UK stays in the UK. It probably won't be worth the efforts to follow the EU. 

And it certainly doesn't improve the quality of jam by doing this. You see, UK consumers can actually read the ingredients themselves to see what they are getting in their jam.

As the OP states, this is the EU trying to be relevant by regulating its region and making non-tariff barriers more difficult to big exporters of jam, of which the UK isn't.

That would be the whole point of the EU, wouldn't it? To deal with those differences in standards in member state countries that act as barriers to trade. They tend to relate to trivial matters like this, trademark laws, etc. On the other hand, the UK's unelected judiciary make laws on important matters like constitutional law, criminal law, and family law. Matters that are far from trivial.