Emilie Meyer
Using cans as cook pots is a topic that has been discussed by hikers and campers. While it may be convenient to use cans as cook pots, there are safety concerns to consider, such as the possibility of heavy metal poisoning or exposure to harmful chemicals like BPA. Some hikers suggest using cans as wood-burning stoves or windscreens instead of cook pots. If you're looking for a pot to use for canning, it's recommended to use specialized canning pots, also known as water bath canners, which are available in granite or stainless steel.
Characteristics and values of using a can as a cook pot
| Characteristics | Values |
|---|---|
| Safety | There are safety concerns regarding the use of cans as cook pots, including the risk of heavy metal poisoning and potential hydrogen explosions. |
| BPA Lining | The BPA lining of cans may be unsafe when heated, especially at higher temperatures and over multiple uses. |
| Durability | Cans are not as durable as regular cook pots and may not last long-term. |
| Multi-use | Regular cook pots are more versatile and can be used for a variety of cooking methods and recipes. |
| Price | Stainless steel pots are a more affordable option in the long run, despite their higher price tag. |
| Maintenance | Regular pots are easier to maintain and clean compared to cans. |
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What You'll Learn
Stainless steel water bath canners are multi-use
Stainless steel water bath canners are a great investment for those who do a lot of canning. They are durable, long-lasting, and multi-use. Not only are they great for canning, but they can also be used for large batch cooking, blanching, and other purposes. They are made of food-grade stainless steel, which is resistant to rust and corrosion, making them a good choice for those looking for a durable option.
One of the advantages of stainless steel water bath canners is their versatility. They can be used on all types of stovetops, including smooth top ranges, without the risk of cracking or damaging the stove top. This makes them a good choice for those who want an all-purpose pot to have on hand. Additionally, some stainless steel water bath canners come with features such as a lid temperature indicator, which helps you know when the water is at the right temperature for canning.
Another benefit of stainless steel water bath canners is their capacity. For example, the Victorio canner is a standard-size water bath canner that can hold 20 quarts of liquid and process 9 pint jars or 7 quart jars in one go. The glass lid also allows you to see the contents and monitor when they come to a boil. The sturdy handles on these canners are also worth noting, as they have a protective rubberized coating, making them secure and comfortable to grip when moving the full canner.
Stainless steel water bath canners are an excellent choice for those who want to invest in a durable, multi-use pot for canning and cooking. They offer a range of features, such as temperature indicators and sturdy designs, that make them a convenient and long-lasting option for the kitchen.
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Avoid using galvanized cans
While it is possible to use a can as a cook pot, there are some important safety considerations to keep in mind, especially when it comes to avoiding the use of galvanized cans.
Galvanized cans are coated with a layer of zinc to prevent rust and corrosion. When these cans are heated, the zinc coating can release toxic fumes that can be harmful if inhaled. Galvanized cans may also contain heavy metals, such as lead and cadmium, which can leach into food when heated, posing a risk of heavy metal poisoning. Therefore, it is crucial to avoid using galvanized cans as cook pots.
Additionally, the lining of cans may pose a potential health risk. Many cans are lined with a material that contains Bisphenol A (BPA), which can be unsafe, especially when heated to high temperatures. Heating a can multiple times at high temperatures, as you would when using it as a cook pot, could potentially cause the BPA lining to break down and leach into the food. Even if the lining does not contain BPA, there may be other chemicals or coatings that could be harmful when heated.
To eliminate the risk of exposure to harmful chemicals, it is advisable to use an unlined cooking pot. If you must use a can as a cook pot, it is essential to take the necessary precautions. Burning or sanding off the lining before use can help reduce the risk of exposure to BPA and other chemicals. However, it is important to recognize that there may still be harmful residue present, and complete removal of the lining may not be possible. Therefore, it is generally recommended to avoid using cans as cook pots, especially on a regular basis.
In conclusion, while it may be tempting to use a can as a makeshift cook pot, particularly during camping or hiking trips, it is important to prioritize your health and safety by avoiding the use of galvanized cans and being cautious of can linings. It is always best to opt for dedicated cookware designed for cooking and boiling water whenever possible.
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Tin cans are better used as wood-burning stoves
Tin cans can be used as cook pots, but there are some concerns about the safety of doing so. For instance, the linings of cans often contain BPA, which may be unsafe, especially when heated. This is because a normal can is heated once at a low temperature to kill bacteria, whereas a cook pot is heated to a higher temperature multiple times. When a tin can is used as a cook pot, there is a risk of gunk peeling off the inside of the can, which can be disconcerting given that it previously contained food.
Furthermore, using a tin can as a cook pot may pose a risk of heavy metal poisoning, as suggested by a warning against using any galvanized cans for this purpose. Tin cans may also produce hydrogen as a byproduct when heated, which could potentially lead to an explosion. While this may not be a significant concern for occasional use, regular use of tin cans as cook pots may be unsafe.
Overall, while it is possible to use tin cans as cook pots, there are several safety concerns associated with doing so. Tin cans are therefore better suited for use as wood-burning stoves, as this reduces the risk of exposure to harmful chemicals and is more convenient in terms of maintenance and replacement.
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Instant pots are unsafe for pressure canning
Instant Pots are electric pressure cookers, not pressure canners, and they are unsafe for pressure canning. This includes the Instant Pot Max, which has a canning setting. The Instant Pot website notes that the canning setting on the Instant Pot Plus is only approved for water bath canning of jams, jellies, and pickles.
Pressure canning is about more than just sealing jars; it's about killing dangerous bacteria like Clostridium botulinum. This only happens at very specific temperatures, held for a very specific amount of time, and that's where the Instant Pot falls short. Low-acid foods like vegetables, meats, poultry, and mixed recipes like soups and stews need to reach 240–250°F at sea level and maintain that temperature long enough to kill harmful bacteria. Instant Pots cannot reach or maintain these temperatures.
The United States Department of Agriculture (USDA) has stated that canning in the Instant Pot is unsafe. They cite multiple reasons for this, primarily the inability of the cooker to hold the proper temperature. Even if the Instant Pot could maintain the right pressure, the chamber is too small to use the established processing times.
While Instant Pots cannot be used for pressure canning, they can be used for water bath canning, which can preserve high-acid foods like jams, jellies, fruits, and pickles. Water bath canners are available in stainless steel and granite, and they can also be substituted with any deep stockpot.
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Granite ware canners are prone to chipping and rusting
While canning, the choice of the pot is crucial. Granite ware canners, also known as water bath canners, are a traditional and nostalgic choice. They are typically black or dark blue with a speckled, mottled appearance due to their enamel coating. While granite ware canners are inexpensive and widely available, they are prone to chipping and rusting over time. This is because the enamel coating can wear through, exposing the underlying metal to moisture and accelerating rust formation.
To prevent rusting, proper care and maintenance are essential. After each use, it is important to thoroughly clean and dry the granite ware canner. Additionally, using a rack or towel to separate the jars from the surface of the pot can help prevent chipping and rusting by reducing surface-to-surface contact.
In contrast, stainless steel canners are a more durable and long-lasting alternative. They resist rust and corrosion and can be used for multiple purposes, such as large batch cooking or blanching. Stainless steel canners are also suitable for steam canning, making them a versatile option for high-acid recipes. While they may carry a higher price tag, many consider them a worthwhile investment due to their durability and multi-functional capabilities.
Ultimately, the choice between a granite ware canner and a stainless steel canner depends on individual preferences and canning needs. Granite ware canners offer a cost-effective entry point into the world of canning, while stainless steel canners provide a more robust and versatile solution. Proper care and maintenance can help extend the lifespan of either option, ensuring safe and effective canning practices.
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Frequently asked questions
It is not recommended to use a can as a cook pot due to safety concerns. Cans may have BPA in their linings, which can be unsafe when heated. Additionally, there may be a risk of heavy metal poisoning from heating water in a "tin can". It is best to use dedicated cookware for your cooking needs.
If you are looking for lightweight and affordable options, you can consider stainless steel or granite ware water bath canners, which are readily available in hardware and grocery stores. These canners are durable, multi-use, and suitable for various cooking methods.
If you absolutely must use a can as a cook pot in an emergency, ensure you remove any linings by burning or sanding them off beforehand. Be cautious of potential residue, and avoid using galvanized cans to prevent the risk of heavy metal poisoning.
