Question

If I put flower petals in a sealed, airtight jar, without drying or preserving them first. What will happen to them?

Answer 1

Answer:

Those flowers may have looked good when you first received them, but despite your best efforts, you can’t keep them fresh forever. If you really want to preserve your blooms, you need to remove their moisture with a process like air-drying, pressing, or nuking them in the microwave. (You can also try dipping them in wax, but that method is harder to pull off.)