4/7/2023 0 Comments Gpass plates bad![]() ![]() ![]() They still use this type of glass in European Pyrex, called Pyroflam, which is more heat resistant. We can see from the list of ingredients that borosilicate glassware should be lead free glassware.īefore 1998, Corning produced Pyrex from borosilicate glass. This article informs us that borosilicate glass is made of at least 5% boric oxide, which makes it more heat resistant. Borosilicate glassĪs for borosilicate glass, Wikipedia describes its composition as follows (as a percentage of weight): 4.0% boron, 54.0% oxygen, 2.8% sodium, 1.1% aluminum, 37.7% silicon, and 0.3% potassium. ![]() They recommended searching on the Internet, which I did, and my blog came up (which I found extremely illuminating (just kidding, kind of)).Īccording to Wikipedia, “soda-lime glass is prepared by melting the raw materials, such as sodium carbonate (soda), lime, dolomite, silicon dioxide (silica), aluminium oxide (alumina), and small quantities of fining agents (e.g., sodium sulfate, sodium chloride) in a glass furnace at temperatures locally up to 1675 ☌.” This article tells us that soda lime glass is made of 70% silica, soda, lime, and small amounts of other compounds. Unfortunately, they do not disclose the materials from which their soda lime glass is made. A lot of glass dinnerware options are made from soda lime glass as well. And that is when World Kitchen started making Pyrex lead free glassware from soda lime, not borosilicate. For example, popular Pyrex glass storage containers and glass baking dishes are made from soda lime glass. Soda lime glass is more common than borosilicate, especially in the US. It is important to know that there are two common types of glass material – soda lime and borosilicate glass. With this said, let’s discuss common types of glass so you can make the best decisions for your kitchen and health. So, I want to praise you for looking into using glass food storage, glass cookware, and glass tableware for your kitchen. Unlike plastic, it does not leach hormone-disrupting chemicals. Unlike ceramics and clay, glass normally does not leach lead, cadmium, and other heavy metals. Let’s answer them and go over the best lead free glassware brands including glass dinnerware, safest drinking glasses, and glass cookware.īefore we dive into these questions, let me start by saying that with a few exceptions, glass is the safest material for items that come in contact with food. When outfitting your kitchen, you may have a lot of questions, such as: Does glass have lead in it? Does borosilicate glass have lead? What is the best glass cookware? These are all very good questions. ![]()
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