Here are a few links that tell you why you don't plant in metal containers. 0 0. umindy78. So you've rounded up your rich soil and organic seeds, but things start getting tricky when you look at those darned sprouting trays!After you work so hard to grow microgreens without endocrine-disrupting pesticides, they shouldn't end up being ruined by the stupid container they grew in.. However, with new information about plastic safety, you may be worried about chemicals leaching into your food. Lightweight aluminum is an excellent heat conductor, but it’s also highly reactive with acidic foods such as tomatoes, vinegar, and citrus. Galvanized steel is steel that’s been coated in a layer of zinc to prevent rusting. "Container gardening" is a fairly common practice, and plastic buckets are the medium of choice. Numerous types of containers work for container gardening, including galvanized containers such as pails, tins and washtubs. Aluminum serving dishes are lightweight, sturdy and relatively inexpensive -- but you may wonder if they are safe. Container gardening is a flexible option for those with little outdoor space to grow vegetables. Keep reading to learn more about planting in galvanized steel containers. The types of rain gutter most often used for gutter gardening are made of vinyl or aluminum. Vinyl gutter However, wrapping your food in a sheet of aluminum foil is also an easy way to put yourself at risk for health hazards. The Centers for Disease Control and Prevention (CDC) estimates the average adult consumes 7 to 9 mg of aluminum daily from foods, not including the amount that can leach into food by cooking with aluminum pots or pans. Just to use them as decorative planters....in other words placing a potted plant inside it. Your body absorbs less than 1% of the background aluminum in food or drinking water. Much like we need air to breathe, bacteria need air to thrive. This makes it especially good among metal plant containers, because the presence of soil and water means a lot of wear and tear for containers. The good news is that we've done the legwork so you can grow microgreens indoors without toxic plastic! Ninety-five percent of this is cleared by the kidneys. Growing Plants in Galvanized Container. Which Plastics Are Safe to Use as Containers to Grow Food?. Benefits. ... are aluminum pots safe for plants? Most of the environmental aluminum … Is it safe to eat food grown in vinyl or aluminum containers? If you have limited space or a short growing season, you may be considering growing food in small containers. Galvanized containers are metal containers that are thoroughly cleaned and then covered with a zinc coating. Source(s): aluminum pots safe plants: https://tr.im/UpOug. Plastic is widely used in yards, from the pipes in sprinkler systems to the barriers used to edge a walkway. 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