People in Greater Manchester will have to continue throwing away most of their plastic because bosses say there isn't a market to recycle more - despite other places in the country doing so.
Only plastic bottles can be recycled in the region, with all other types of plastic burnt as general waste.
In Cambridge, people can also recycle plastic pots, tubs and trays, and plastic bags and film on top of the normal bottles.
The recycling postcode lottery can confuse people as some things are labelled as recyclable, but don't always end up being reused.
In reality, this only happens in some parts of the country.
A raft of green environmental plans were unveiled by leaders at the second Greater Manchester Green Summit last week, where they outlined aims to become carbon neutral within two decades.
Everyone in Greater Manchester - except people in Wigan - will have to continue throwing away most of their plastic, although much of it is marked as recyclable.
This includes yoghurt pots, margarine and ice cream tubs, and plastic packaging trays.
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Greater Manchester Mayor Andy Burnham told the Local Democracy Reporting Service he was a 'bit shocked' how much plastic could not be taken for recycling.
He said: "We need to work with our suppliers to be able to take more for recycling and that's the direction that all of our councils want to go.
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"And it's a case of making sure the capability is there.
"But as well putting more pressure on the supermarkets and industry because I think they are over-packaging at times.
"I think supermarkets need to send a different message to their suppliers and say don't use these pots, these containers that can't be properly recycled."
He added: "There's a discussion underway about how we do take more for recycling.
"We definitely want to move in that direction, it's just obviously within a contract that we have - how do you make that change.
"But we are talking to the suppliers about that."
The Greater Manchester Combined Authority (GMCA) has recently agreed to switch its waste contractor from Viridor to Suez.
A spokesperson for the GMCA waste and resources team said that there would be no change to the type of plastics they can recycle.
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"The ability to recycle all types of plastics including yoghurt pots is not related to which contractor we use, it's down to whether there is a sustainable market for different types of plastics and currently there isn't," they said.
"There are no changes planned to what we can collect in the household bins, we will continue to collect plastic bottles and other types of plastic will still go in the general waste bin.
"The new contracts will operate for seven years with an optional extension of three years.
"If the market for plastic packaging changes during that time, then we will review our recycling policy accordingly."
If you were living in a different part of the country, you could be able to recycle more as each council collects its plastic recycling differently.
Neighbouring Wigan, deals with its own waste, does allow residents to recycle yoghurt pots and plastic tubs.
It is thought locally that the impact of programmes such as Blue Planet, which urged consumers to be more environmentally responsible have actually led to a potential decrease in the amount of plastic that gets recycled.
This is because putting the wrong plastic in with the correct recycling can contaminate it - causing the whole lot to be incinerated rather than re-purposed - despite the best of intentions.
Residents are advised to check with their local authority what they can put in their household bins.
Plastic packaging is made from seven different types of polymers, and some are recycled more than others.
The most common is Polyethylene Terephthalate (PET), which is used to make plastic bottles.
In November last year, the maximum price per tonne for clear and light blue PET was £145.
But the prices are much lower for other types of plastic, and there is no market for polymers that are harder to recycle.
Some countries, such as China, Malaysia and Vietnam are refusing to take any more of our waste which are also causing prices to drop.
The GMCA spokesperson added: "I understand the confusion, many plastic packaging products are labelled that they can be recycled, however each polymer will require a slightly different recycling process and we don't have the facilities in the UK to recycle them.
"A lot of investment is needed and this depends on the fluctuation of the oil prices, low oil prices mean manufacturers will favour using virgin plastic and therefore the demand for recycled plastics is low.
"By simplifying plastic packaging so that it's made out of two or three types of plastic, it is hoped that this will help to stimulate the change needed."
The government are currently consulting on bringing in changes to encourage producers to design plastic packaging that can be recycled.
They are also looking at ways of using producer funding to invest in better collection and disposal systems for packaging waste.
