A Kilner jar is a special type of jar that you can use to store things like fruits, vegetables, and even homemade jams! They are usually made out of glass and have a metal top that you can seal tight with a special clip. This clip helps to keep everything inside the jar fresh and tasty for a long time.
Now let's pretend you want to make homemade strawberry jam! First, you need to put fresh strawberries and sugar into your Kilner jar. Then, you can boil the mixture and let it cool down. Once it's cooled, you put the lid on the jar and use the clip to keep it sealed shut. This helps to keep out any air or bacteria that could spoil your jam.
The best part about Kilner jars is that they are reusable, so you can use them over and over again. They also come in different shapes and sizes, so you can use them for all sorts of things like storing your favorite snacks or even as a cute vase for flowers. Overall, Kilner jars are just super helpful and handy for keeping your food fresh and organized!