Since tea is dry, any type of moisture can ruin it, which is why it’s best to store tea in an airtight container.
Heat
Keep tea away from heat, which can degrade your tea. Don’t keep your tea near a window or a stove. It’s best when kept at room temperature.
Odour
Tea absorbs odours easily from the air around it, so store it away from anything with too strong of a smell, like spices or coffee.
Air
You’ll notice some tea sellers will vacuum-seal the tea bags, and that’s to keep out any air, which will give tea a longer shelf life. Take the air out of zip bags first before sealing it to take out as much air as possible.
Light
Keep tea away from light since it can deteriorate your tea. This is why it’s not recommended to store tea in glass jars unless it’s kept in a dark place.