Enamel has been around for decorative and functional use for centuries. Vitreous enamel is akin to ceramic glaze — it is most commonly the result of fusing powdered glass (or less often a glass paste or spray) to a metal or ceramic substrates. Enamel is bonded to metal in kilns at a high temperatures, somewhere between 1400 and 1640°F.














Cranbery Jam
The dead of winter isn’t exactly known for its bounty, but being cooped up indoors with snow flurries outside makes canning — with its pots of boiling water and multiple, time-intensive steps — seem like an ideal winter activity. There may be heads of cauliflower and kale around, but in general, low-acid vegetables are riskier to steam can than high-acid fruits.
Wife of Jim Norris with canned goods, Pie Town, New Mexico, 1940, by Lee Russel. Image from Library of Congress
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