I’m new also and appreciate your question. I use the plastic lids but felt they aren’t air tight and like the idea to use wax paper with the metal lids is a tighter seal. My liquids are many inches from the lid.

From what I understand, tinctures made with at least 40% or 80 proof drinkable alcohol (not rubbing) alcohol will last several years. Here is some information from the lessons: Herbert
Howdy Pardner, I’m Herbert and I’d love to answer your questions about Herbalism! What’s your name, and what can I tell ya about herbal medicine?
6:18:59 PM
How long can you store tinctures? What are the best ways to store them?
6:19:38 PM
Herbert
Tinctures have a long shelf life and can be stored for many years. The best way to store tinctures is to keep them in a dark place. Regular glass jars or food-grade plastic containers work well for storage. It is important to keep them out of direct light to maintain their potency. Amber jars are even better for preserving the tinctures. Remember to label the containers with the name of the herb and the date to keep track of their freshness.

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Linda G

I think the main thing people use as storage are amber bottles. Only the amber bottles protect from the sunlight. I know you probably want to avoid plastics that are in contact with the tincture as the alcohol might cause that to deteriorate

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Karon Marie Henick, Elizabeth Prackert

Hi Herb Thyme and Everyone..I have bottles with plastic lids and they didn’t have a good enough seal. I had some sheets of thin craft material that is rather like rubber that comes in A4 sheets and is available at craft or cheap shops in different colours.I cut around the outside of the lid and pushed it firmly into the lid. I can sterilize it and it is reusable. It stopped the lid leaking so that solved my problem.  I also had bottles that i was using for tinctures and had a problem with the tamper proof caps..they leaked as well. I ended up getting some caps that they call Cone caps..they don’t leak.  Because the last thing we need is leaking bottles..not good at all. Hope this helps someone. Bright Blessings to all.

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Michelle Koch

There are two types of plastic lids designed for Ball type jars.  One is white that will not seal.  The other is black that is designed to seal.  I have not used them because i have been using the Brown Boston type bottles for long storage.  They are not cheap in the larger sizes, but a little a time will eventually build up a good stock of them.   The black lids are not expensive for the ball jars.  I would give one of them a try.  Good luck.

I’m a new student. But I have tinctured Comfrey in a clear glass jar, using Vodka.   Used the lid it came with.  Shook it daily for 14 days.  Kept it in a dark place.  After straining out the marc, I filled a brown tinted dropper bottle, and it has been in the cupboard for several years.  It’s always ready to use when I have a bruise or cut.  I’ve never used a plastic bottle or top, but I may try it in the future.  Linda G.

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laural kiblen

Amber bottles or a cupboard to protect from the light. I store everything in amber bottles with plastic lids.