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Home » Kitchenware » Paraffin

Paraffin

Box of paraffin wax, Esso brand

Box of paraffin wax. © CooksInfo / 2018

Paraffin wax is a white wax with no smell or taste. It is available in solid blocks and bottled liquid.

Paraffin wax manufacture

Technically paraffin is not a true wax. Though wax-like in appearance and behaviour, it is made from distilled petroleum that is then purified. It can also be made synthetically by converting carbon monoxide and hydrogen to paraffin hydrocarbons, then hydrogenating them, and possibly refining them through activated charcoal. Its formula is C n H 2n+2 (n can be a number between 22 and 27.)

Food grade paraffin is different from that used for candles.

Block of solid paraffin wax

Block of solid paraffin wax. cjp24 / wikimedia / 2009 / CC BY-SA 3.0

Paraffin wax uses

Paraffin wax has been used historically in the food world for various purposes such as coating cheese with, as an additive in chocolate, to coat waxed paper, as part of children’s candies, and in older usage, sealing the tops of jars of jellies and jams.

Some specific ways in which paraffin wax is used:

  • Paraffin gum is usually flavoured and coloured, and sold as the big red lips or black mustaches that you wear and then chew on later. It can also be sold clear, to make the wax tube candy filled with sweet flavoured liquid;
  • The wax on waxed paper is paraffin;
  • Paraffin is sprayed on fruits to help keep moisture in, extending their shelf life, and make them look shiny and attractive. It is also sprayed on other produce such as muskmelon and sweet potatoes, or turnips, rutabagas, and parsnips;
  • Paraffin is used as a coating on sausage casings for aged, cured sausage;
  • Fowl, after plucking, can be dunked in melted paraffin wax to help you get rid of the pin feathers. A few dips in melted paraffin to build up a layer may be necessary. The wax is then allowed to harden, then peeled off, taking the pin feathers with it.
  • Older candy recipes had you add some paraffin wax to the melted chocolate, to give it a firm sheen when it cools. You melted the chocolate and the wax separately, then mixed them together. Paraffin could be melted directly with chocolate chips.
Paraffin in liquid state in beaker

Paraffin in liquid state in beaker. Chemik10 / wikimedia / 2008 / CC BY-SA 2.5

Cooking Tips

Paraffin wax melts between 50 and 57 C (122 and 135 F).

Nutrition

Paraffin wax is not overly healthy in the long run: in large amounts, it can act as a laxative, and prolonged consumption of large amounts of liquid paraffin can interfere with your body’s absorption of fat soluble vitamins such as A, D, E and K. However, it is a myth that its use with food is banned by the American Food and Drug Administration (FDA). In fact, the opposite: it is explicitly allowed as a food coating or as an ingredient in a food coating.

Paraffin wax and preserving

Historically, paraffin was used in the first half of the 1900s to seal the tops of jars of homemade jams and jellies. This is now actively recommended against by home preserving researchers and experts in North America owing both to food safety and food loss.

Firm recommendations against its use for preserving occurred in writing as early as the 1980s:

“Because of possible mold contamination, paraffin or wax seals are no longer recommended for
any sweet spread, including jellies.” [1] United States Department of Agriculture (USDA). Complete guide to home canning. Agriculture information bulletin No. 539. 1987. Page 1-24.

The University of Maryland says,

“For many years, paraffin has been used to seal jellied products. Although you will still find paraffin sold with canning supplies, it is no longer recommended. Paraffin or wax sealing of jars is not considered an acceptable choice because any pinholes, shrinkage or cracks in the wax paraffin, allow airborne molds to contaminate and grow on the product. In addition, leaks or holes in the paraffin can allow product to seep out during storage. Once on the surface, this seeping product will provide nutrients for molds to grow on the surface and enter into the jam or jelly in the jar. Without proper processing, mold can grow under the paraffin and grow into the product.” [2]Little, Lynn, et al. Grow it, Eat it, Preserve it. University of Maryland. Extension Curricula EC-03-2013. 2013. Page 47.

In England, where there has been no updated researched home food preservation advice since the 1980s, paraffin wax is still used to seal jars of jams and jellies and “scraping the mould” off is still quite common. Issues include food loss and possible carcinogenic toxins from the mould penetrating the product.

History Notes

In England during the Second World War, liquid paraffin was used as a cooking fat. It could be used melted for frying in, and as a “cooking fat” in items such as cakes.

Language Notes

Two synonyms, Parowax and Parawax, are actually brand names.

Paraffin wax advertisement, 1901

Paraffin wax advertisement touting paraffin wax as the modern way. In: North Carolina Christian advocate. Greensboro, North Carolina. 25 December 1901. Page 7.

References[+]

References
↑1 United States Department of Agriculture (USDA). Complete guide to home canning. Agriculture information bulletin No. 539. 1987. Page 1-24.
↑2 Little, Lynn, et al. Grow it, Eat it, Preserve it. University of Maryland. Extension Curricula EC-03-2013. 2013. Page 47.

Other names

AKA: Baker's Wax, Canning Wax, Cooking Wax, Parowax
French: Paraffine

This page first published: May 30, 2005 · Updated: May 24, 2022.

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Tagged With: Cooking Tools, Coverings, Preserves

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