Generally, wildlife, toxicity and size are the guidelines for what is not used in making compost.
Specifically, not all kitchen scraps should be put in the compost heap. Wildlife tend to be attracted to meat, oily and greasy foods, and dairy products. Any product that contains or has been exposed to poisons or toxins should not be included in the compost pile. Additionally, there may be large items such as mattresses that decompose over time. But they should be avoided. The reason lies in the importance of being able to turn the entire heap regularly. A pile that is turned daily well may have within 31 days the dark brown, fresh-smelling, nutrient-rich organic material that proper composting procedure yields.
You either turn them over so they compost or you let them grow and use them. It is better to remove potatoes from your compost heap turning them over will make no difference.
compost is use full for gardeners and there crops to make them grow quicker.
Commercial compost should be sterile so if bought compost the answer is no.
I have found that two readily available ingredients that can make you a lot of compost fast is straw and green grass clippings, but there are so many other things, but to make a lot, you need to use a lot of organic material.
Containers can be used to put the composting materials, but you don't have to use one. If you use a container and it does not tumble the compost, you will need to tumble it yourself and there are ususally handles for that pupose. If you do not use a container, you will need a pitchfork or other tool to mix the compost with.
The faster it is composted, the less smell. And gardeners want to use compost to help their plants. They would rather make compost than buy it.
add it to your compost heap
There is no need to mix old and new compost. Old compost ,if ready, should be used on its own. New material will take time to rot down to compost.
Yes, leaves make very good compost. Although you will want to go easy with oak leaves, or be sure to test the pH and cut the acid with lime.
Yes most definitely, everything from a kitchen should be put back into a compost heap, if you want to know how to do it go to: www.windwand.co.nz/organickitchengarden.htm and it will show you how to make compost and liquid fertilizers
Yes. You can use organic compost to grow anything.
Compost can help your plants grow better