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No, the bottom of the water bath canner is not flat and excessive heat can build up between the cooktop and the canner causing the cooktop to crack.
No. Granite Ware is all natural, free of any unhealthy chemicals, PFOA, or PTFE. Its pure porcelain surface is inert - it will not alter the taste, color or nutritional value of your food.
Granite Ware is made of enamelware that is a metal-coated porcelain lining that makes it easy to clean, safe to heat and long-lasting.
Our products are expertly crafted with only the highest quality raw materials and optimized for performance, durability, and superior results.
Some of the attributes and benefits of using Granite Ware are:
- High-temperature resistance: Allowing them to handle extremely high temperatures for oven or grill use.
- Long-lasting appearance and performance: Enamelware is resistant to scratches caused by washing fibers and steel utensils, providing shine and durability to your pieces for a long time.
- Antibacterial: Bacteria, microbes, bad odors, and detergent residues do not remain on the enamel on steel surface, offering easy cleaning and a healthy kitchen.
Granite Ware is warranted against original defects in workmanship and materials under normal household use, not commercial.
This guarantee does not cover damage caused by accident, misuse, abuse, commercial use.
If your product has original defects of workmanship and materials please contact us so we can help you with your exchange.
Our included Glass lid thermometer helps you monitor your Canning process temperature, to ensure you are using it correctly, we recommend you to wait for the thermometer to reach the red bar (180-212°F).
Once your thermometer reach the red bar & the water is boiling, you are ready to put in Jars. Make sure to monitor with the included thermometer the temperature stays within that range for the recommended times.
Note: The boiling water point depends on the atmospheric pressure depending on the elevation, allow a couple of minutes after boiling to ensure all the contents retain and get the desired temperature.
* 180-212°F - Canning temperatures are used to destroy most bacteria, yeasts, and molds in acid foods. Time required to kill these decreases as temperatures increase.
* 140-180°F - Warming temperatures prevent growth, but may allow survival of some microorganisms.
* 140°F or lower - Danger zone, this temperatures allow rapid growth of bacteria, yeast and molds.
Guide to know if is Induction suitable -
* Some of our canners have concave bottoms (21qt Water bath canner included in the sets), so even if its Porcelain on steel we don´t recommend to use our canners on induction cooktops.
Why? The use of a concave bottom and the flat surface, When you combine a concave bottom with a flat surface, heat, and water, there is a risk that a seal will form between the canner and the stovetop, and make it crack.
* If the bottom is completely flat, you are able to use it. It is not recommended a full canner load of seven quart jars can be heavier that the stove top can bear, and it can still broke your glass/induction stove.
NOTE: Some glass cooktops cycle the heat, so you are not able to hold a steady boil and be in danger of not reaching the heath penetration necessary for your preserves to be sterilized and doing a safety Canning process.