What’s a Jelly Bag?

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A jelly bag is used to strain fruit for jelly-making, separating juice from solids. It can be made from unbleached muslin or other thin materials and is often used with a stand. Alternatives include old pillowcases or pantyhose. It can also be used for other applications where solids need to be separated from liquids.

A jelly bag is a piece of kitchen equipment used to strain fruit, typically for use in jelly, to separate the juice from seeds and other solid materials. While often commercially available, a number of home-substitute methods have been created and used by many jelly makers over the years. These substitutions include using unbleached muslin, old pillowcases, and even knit fabrics as pantyhose. This bag will typically be used with a stand, often a tripod or folding stand that can be attached to a bowl, although some may hang from hooks above a bowl.

Often made from unbleached muslin, a jelly bag can be made from other materials as long as they are thin enough and can allow liquids to pass through while reserving solids. These bags are typically used in the early part of making jelly, with fruit that has been lightly cooked or smashed. The fruit is then placed inside the bag and the bag is either suspended over a bowl or connected to the bowl through some type of support. This allows the liquid fruit juice to slowly drip out of the clear cloth and the solids such as seeds, peel and flesh of the fruit remain in the bag. For optimal use, the fruit should be left on for a long time, such as overnight, and not squeezed through the bag.

A gelatin is used to make jelly, although it can be used for any type of application where someone wants to separate solid matter from liquid. Someone who makes homemade ketchup or spaghetti sauce can use this bag to strain the liquid from mashed tomatoes, keeping the seeds and skin separate. Home jelly makers have often bragged about the clever substitutions they’ve come up with when a traditional jelly wasn’t available. The small size of some bags also tends to make them sometimes inadequate for some uses, especially when a large amount of gelatin is being made.

Among the most popular replacements for this bag are new pantyhose or an old pillowcase. Old pillowcases are often worn quite thin from daily use and frequent washing. This means they can typically allow liquids like juice to pass through, while keeping the solids contained in the pillowcase. New pantyhose are typically of such a fine knit, and lack large tears, that they will function much like a bag of jelly. Or a replacement can be suspended from a hook or similar fastener over a large bowl to catch the juices.




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