Quick Answer
To ensure safe and healthy fermenting, avoid using jars made from materials that can contaminate your food or leach chemicals into it, such as lead, cadmium, or BPA. Opt for jars made from food-grade glass, ceramic, or stainless steel instead. Always clean and sanitize your jars before use.
Choosing the Right Material
When selecting jars for lacto fermentation veggies, it’s essential to choose materials that are non-reactive and can withstand acidic environments. Avoid using jars made from materials like glass with metal trim or paint, as these can leach chemicals into your fermented foods. For example, a study found that jars with cadmium-containing glazes can release up to 100 ppm of cadmium into the fermented liquid.
Food-Grade Materials
Opt for jars made from food-grade glass, ceramic, or stainless steel instead. These materials are non-reactive and can withstand the acidic environment created during lacto fermentation. For example, you can use jars made from borosilicate glass, which is resistant to thermal shock and can withstand temperatures between -20°C and 300°C. Ceramic jars are also an excellent option, as they are non-porous and can be easily sanitized.
Sanitizing Your Jars
Before use, always clean and sanitize your jars to prevent contamination. Wash your jars in hot soapy water, then rinse thoroughly and sanitize them in a pot of boiling water for 10-15 minutes. Alternatively, you can sanitize your jars in a dishwasher on the sanitizing cycle. Once sanitized, allow the jars to dry completely before filling them with your fermented veggies.
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