How to preserve ground spices? [duplicate]

As soon as you grind a spice, it gets exposed to air and starts to lose its potency. I'm trying to figure out how I can grind them and reduce/prevent this from happening.

I guess you could put them in an airtight jar, but wouldn't the air in the jar cause oxidation?

Would putting the powder in capsules help, like medical tablets?

Are there plastic bags or any bags where you can suck the air out?

I can't do a fresh one daily, but need potency after time. What methods are there to preserve powder from getting oxidized?

Just to note the spices in question are black pepper, long pepper and dried ginger. I guess the former two can be finely ground daily however I couldn't additionally dehydrate and grind ginger daily.

Best Answer

If you have a chamber vacuum sealer, you could vacuum seal your spices and extend the shelf life. Oxidation is the problem here. Ground spices are just limited by surface area exposure. Whole spices, ground as needed, will always be superior. Your best solutions are to purchase (or grind) small amounts, and use them relatively quickly...or, use a coffee grinder or mortar and pestle to grind whole spices as needed.

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What is the best way to store spices long term?

The best way to store spices for long term use is to keep them in a dry, cool, and dark place, such as a food cellar. Doing this can significantly extend the shelf life of your spices. Additionally, spices can be vacuum sealed in mason jars or mylar bags to make them last even longer.

How do you store spice blends?

To keep the flavor going as long as possible, store dried spices and herbs in a cool, dry place out of direct light\u2014not over the stove, since all that heat will make them turn bland more quickly. Keep the containers closed when not in use.

Should spices be stored in plastic or glass?

The expensive and high quality spices are always stored in glass. Plastic can be porous, allowing in small amounts of air that slowly damage spices. While every spice has an expiration date if properly stored and sealed, glass will extend the shelf life significantly.

Can you store spices in Tin?

Storing spices in metal tins works fine for some spices, but salt or blends that contain salt can corrode these containers, she says. Nor is plastic an ideal choice: "Don't store spices in plastic bags for more than a few weeks, because the oils in the spices break down the plastic," Perez warns.

How To Store Spices In Kitchen | How To Store Spices Long Term | Foodie Tips \u0026 Tricks | The Foodie

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