Metal storage tins are an excellent choice for keeping herbs fresh because they are opaque and provide an effective barrier against light, air, and moisture, which helps preserve potency and aroma....
- Airtight Seal: This is the most important feature. Look for containers with tight-fitting lids, often featuring a silicone O-ring or double lids, to lock in flavor and keep moisture out.
- Durability: Metal tins are robust, shatterproof, and built to last.
- Opaque Material: Metal (stainless steel, tinplate, or aluminum) naturally blocks harmful UV rays and visible light, which degrade herbs over time.