My preserved garlic seems to be fermenting

Does anybody know if this is normal?

About a month ago I preserved garlic in olive oil and put it in the refrigerator for quick and easy use as needed. No I have noticed that there is pressure underneath the lid when I take the glass out of the refrigerator. I have not noticed a bad smell or taste, but I do wonder if this is normal and for how long will the garlic be usable?

We will see.

Preserving Garlic for quick and easy use

No Garlic goes to waist

We love garlic in our food. If we make soup, roast a chicken or some other meat or make a sauce. We put garlic in there. Unfortunately I can not store garlic in our Tiny House very well. It always starts sprouting after a week. Therefore I never buy much and often run out.

To solve my problem with this I decided to preserve garlic for quick and easy use and to prevent the garlic from going bad. This way I should never run out anymore. I have seen people mince the garlic and put it in oil, but I often use the cloves, so I just put the cloves (bigger cloves sliced in two) in olive oil. I bought 5 bulbs of garlic, but could only fit 4 bulbs in the glass I chose. The last bulb will be put to good use fresh. Luckily I had 3 helpers. More and also less useful. Those of you with small children will know what I mean. But the pealing went very quickly and was a lot of fun. And the garlic needed for today’s soup was ready for use also. I store the glass with garlic on oil in the refrigerator.